./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.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_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:01:52,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:01:52,134 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 05:01:52,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:01:52,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:01:52,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:01:52,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:01:52,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:01:52,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:01:52,176 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:01:52,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:01:52,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:01:52,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:01:52,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:01:52,177 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:01:52,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:01:52,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:01:52,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:01:52,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:01:52,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:01:52,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:01:52,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:01:52,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:01:52,179 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:01:52,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:01:52,179 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:01:52,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:52,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:52,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:52,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:52,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:01:52,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:52,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:52,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:52,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:52,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:01:52,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:01:52,182 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:01:52,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:01:52,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:01:52,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:01:52,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:01:52,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:01:52,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:01:52,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:01:52,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 [2024-11-28 05:01:52,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:01:52,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:01:52,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:01:52,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:01:52,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:01:52,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2024-11-28 05:01:55,487 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/data/3a3f28583/4ac1ba904c46430d8837a66b8e7a03b3/FLAG94a9ae607 [2024-11-28 05:01:56,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:01:56,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2024-11-28 05:01:56,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/data/3a3f28583/4ac1ba904c46430d8837a66b8e7a03b3/FLAG94a9ae607 [2024-11-28 05:01:56,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/data/3a3f28583/4ac1ba904c46430d8837a66b8e7a03b3 [2024-11-28 05:01:56,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:01:56,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:01:56,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:56,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:01:56,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:01:56,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:56" (1/1) ... [2024-11-28 05:01:56,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9cee06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:56, skipping insertion in model container [2024-11-28 05:01:56,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:56" (1/1) ... [2024-11-28 05:01:56,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:01:56,515 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_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2024-11-28 05:01:56,522 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_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2024-11-28 05:01:57,432 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,433 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,433 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,434 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,435 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,450 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,451 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,453 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,454 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,456 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,457 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,458 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:57,458 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,111 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,111 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,120 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,127 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,240 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,240 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,241 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,241 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,241 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,242 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,242 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,243 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,243 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,243 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,243 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,244 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,244 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,246 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,247 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,247 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,247 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,251 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,251 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,263 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,264 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,264 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:58,335 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:01:58,355 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_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2024-11-28 05:01:58,356 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_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2024-11-28 05:01:58,424 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,424 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,425 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,425 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,426 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,438 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,439 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,442 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,443 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,444 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,444 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,445 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,445 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,557 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,558 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,560 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,565 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-11-28 05:01:58,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,606 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,606 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,606 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,607 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,607 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,608 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,608 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,612 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,615 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,616 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,624 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,625 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,625 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:01:58,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:58,855 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:01:58,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58 WrapperNode [2024-11-28 05:01:58,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:58,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:01:58,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:01:58,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:01:58,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:58,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,056 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 951 [2024-11-28 05:01:59,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:01:59,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:01:59,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:01:59,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:01:59,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,198 INFO L175 MemorySlicer]: Split 347 memory accesses to 6 slices as follows [2, 238, 3, 17, 69, 18]. 69 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 6, 1, 4, 0, 5]. The 259 writes are split as follows [0, 232, 1, 3, 17, 6]. [2024-11-28 05:01:59,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:01:59,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:01:59,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:01:59,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:01:59,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (1/1) ... [2024-11-28 05:01:59,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:59,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:59,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:01:59,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:01:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2024-11-28 05:01:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2024-11-28 05:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-28 05:01:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-28 05:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-28 05:01:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-28 05:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-28 05:01:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-28 05:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-28 05:01:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-28 05:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 05:01:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 05:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-28 05:01:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-28 05:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 05:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 05:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 05:01:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:01:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-28 05:01:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-28 05:01:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-28 05:01:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:01:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 05:01:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-28 05:01:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 05:01:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-28 05:01:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-28 05:01:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-28 05:01:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-28 05:01:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:01:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-28 05:01:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 05:01:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 05:01:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 05:01:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 05:01:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 05:01:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 05:01:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 05:01:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-28 05:01:59,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-28 05:01:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 05:01:59,397 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 05:01:59,397 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 05:01:59,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 05:01:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 05:01:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 05:01:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 05:01:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 05:01:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 05:01:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 05:01:59,398 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-28 05:01:59,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-28 05:01:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-28 05:01:59,399 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-28 05:01:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 05:01:59,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 05:01:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:01:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:01:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:01:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:01:59,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 05:01:59,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 05:01:59,833 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:01:59,835 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:02:06,349 INFO L? ?]: Removed 218 outVars from TransFormulas that were not future-live. [2024-11-28 05:02:06,350 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:02:06,374 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:02:06,374 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 05:02:06,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:06 BoogieIcfgContainer [2024-11-28 05:02:06,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:02:06,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:02:06,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:02:06,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:02:06,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:01:56" (1/3) ... [2024-11-28 05:02:06,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6143def0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:06, skipping insertion in model container [2024-11-28 05:02:06,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:58" (2/3) ... [2024-11-28 05:02:06,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6143def0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:06, skipping insertion in model container [2024-11-28 05:02:06,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:06" (3/3) ... [2024-11-28 05:02:06,387 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2024-11-28 05:02:06,404 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:02:06,406 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_sift_either_harness.i that has 26 procedures, 368 locations, 1 initial locations, 6 loop locations, and 2 error locations. [2024-11-28 05:02:06,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:02:06,493 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=PETRI_NET, 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;@507fe917, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:02:06,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:02:06,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 220 states have (on average 1.2454545454545454) internal successors, (274), 223 states have internal predecessors, (274), 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) [2024-11-28 05:02:06,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 05:02:06,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:06,514 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 3, 3, 3, 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] [2024-11-28 05:02:06,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:02:06,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:06,520 INFO L85 PathProgramCache]: Analyzing trace with hash -151478332, now seen corresponding path program 1 times [2024-11-28 05:02:06,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:06,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515267817] [2024-11-28 05:02:06,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:06,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-28 05:02:14,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515267817] [2024-11-28 05:02:14,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515267817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:14,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720391091] [2024-11-28 05:02:14,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:14,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:14,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:14,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:14,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:02:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:21,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:02:21,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:21,612 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 05:02:21,612 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:21,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720391091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:21,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:02:21,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:02:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636236443] [2024-11-28 05:02:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:21,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:02:21,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:21,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:02:21,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:02:21,652 INFO L87 Difference]: Start difference. First operand has 368 states, 220 states have (on average 1.2454545454545454) internal successors, (274), 223 states have internal predecessors, (274), 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 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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) [2024-11-28 05:02:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:21,731 INFO L93 Difference]: Finished difference Result 711 states and 1088 transitions. [2024-11-28 05:02:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:02:21,733 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 138 [2024-11-28 05:02:21,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:21,745 INFO L225 Difference]: With dead ends: 711 [2024-11-28 05:02:21,746 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 05:02:21,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:02:21,764 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:21,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:02:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 05:02:21,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-28 05:02:21,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 215 states have (on average 1.2093023255813953) internal successors, (260), 217 states have internal predecessors, (260), 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) [2024-11-28 05:02:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 498 transitions. [2024-11-28 05:02:21,868 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 498 transitions. Word has length 138 [2024-11-28 05:02:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:21,870 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 498 transitions. [2024-11-28 05:02:21,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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) [2024-11-28 05:02:21,870 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 498 transitions. [2024-11-28 05:02:21,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 05:02:21,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:21,875 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 3, 3, 3, 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] [2024-11-28 05:02:21,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:02:22,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 05:02:22,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:02:22,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash -214993206, now seen corresponding path program 1 times [2024-11-28 05:02:22,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:22,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330132625] [2024-11-28 05:02:22,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:22,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 05:02:28,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:28,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330132625] [2024-11-28 05:02:28,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330132625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:28,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578390665] [2024-11-28 05:02:28,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:28,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:28,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:28,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:28,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:02:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:34,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:02:34,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-28 05:02:34,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:34,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578390665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:34,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:02:34,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 05:02:34,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264411230] [2024-11-28 05:02:34,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:34,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:34,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:34,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:34,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:02:34,423 INFO L87 Difference]: Start difference. First operand 361 states and 498 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-28 05:02:34,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:34,519 INFO L93 Difference]: Finished difference Result 446 states and 607 transitions. [2024-11-28 05:02:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:34,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 138 [2024-11-28 05:02:34,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:34,531 INFO L225 Difference]: With dead ends: 446 [2024-11-28 05:02:34,531 INFO L226 Difference]: Without dead ends: 362 [2024-11-28 05:02:34,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:02:34,533 INFO L435 NwaCegarLoop]: 497 mSDtfsCounter, 0 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:34,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 989 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:02:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-28 05:02:34,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2024-11-28 05:02:34,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 216 states have (on average 1.2083333333333333) internal successors, (261), 218 states have internal predecessors, (261), 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) [2024-11-28 05:02:34,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 499 transitions. [2024-11-28 05:02:34,565 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 499 transitions. Word has length 138 [2024-11-28 05:02:34,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:34,566 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 499 transitions. [2024-11-28 05:02:34,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-28 05:02:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 499 transitions. [2024-11-28 05:02:34,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 05:02:34,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:34,571 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 4, 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] [2024-11-28 05:02:34,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:02:34,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:34,772 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:02:34,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:34,772 INFO L85 PathProgramCache]: Analyzing trace with hash -279843000, now seen corresponding path program 1 times [2024-11-28 05:02:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19733546] [2024-11-28 05:02:34,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:41,040 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 05:02:41,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:41,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19733546] [2024-11-28 05:02:41,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19733546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:41,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22375655] [2024-11-28 05:02:41,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:41,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:41,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:41,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:41,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:02:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:46,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 4532 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:02:47,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 05:02:47,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:47,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22375655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:47,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:02:47,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 05:02:47,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140083813] [2024-11-28 05:02:47,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:47,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:02:47,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:47,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:02:47,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:02:47,781 INFO L87 Difference]: Start difference. First operand 362 states and 499 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-28 05:02:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:49,680 INFO L93 Difference]: Finished difference Result 678 states and 944 transitions. [2024-11-28 05:02:49,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:02:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 157 [2024-11-28 05:02:49,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:49,686 INFO L225 Difference]: With dead ends: 678 [2024-11-28 05:02:49,686 INFO L226 Difference]: Without dead ends: 364 [2024-11-28 05:02:49,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:02:49,689 INFO L435 NwaCegarLoop]: 447 mSDtfsCounter, 498 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:49,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1745 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:02:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-28 05:02:49,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-11-28 05:02:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 217 states have (on average 1.207373271889401) internal successors, (262), 220 states have internal predecessors, (262), 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) [2024-11-28 05:02:49,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 508 transitions. [2024-11-28 05:02:49,738 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 508 transitions. Word has length 157 [2024-11-28 05:02:49,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:49,739 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 508 transitions. [2024-11-28 05:02:49,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-28 05:02:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 508 transitions. [2024-11-28 05:02:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 05:02:49,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:49,742 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:49,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:49,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:49,943 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:02:49,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash -99749652, now seen corresponding path program 1 times [2024-11-28 05:02:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:49,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659125951] [2024-11-28 05:02:49,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:55,820 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 05:02:55,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:55,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659125951] [2024-11-28 05:02:55,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659125951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:55,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910809956] [2024-11-28 05:02:55,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:55,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:55,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:55,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:55,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:03:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:01,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 4582 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:03:01,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 05:03:02,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:03:02,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910809956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:02,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:03:02,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-28 05:03:02,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392345830] [2024-11-28 05:03:02,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:02,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:03:02,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:02,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:03:02,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:03:02,926 INFO L87 Difference]: Start difference. First operand 364 states and 508 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2024-11-28 05:03:06,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:06,628 INFO L93 Difference]: Finished difference Result 701 states and 999 transitions. [2024-11-28 05:03:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:03:06,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 165 [2024-11-28 05:03:06,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:06,634 INFO L225 Difference]: With dead ends: 701 [2024-11-28 05:03:06,635 INFO L226 Difference]: Without dead ends: 385 [2024-11-28 05:03:06,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:03:06,639 INFO L435 NwaCegarLoop]: 430 mSDtfsCounter, 548 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:06,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 2511 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 05:03:06,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-28 05:03:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2024-11-28 05:03:06,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 233 states have (on average 1.2188841201716738) internal successors, (284), 236 states have internal predecessors, (284), 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) [2024-11-28 05:03:06,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 545 transitions. [2024-11-28 05:03:06,684 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 545 transitions. Word has length 165 [2024-11-28 05:03:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:06,685 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 545 transitions. [2024-11-28 05:03:06,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2024-11-28 05:03:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 545 transitions. [2024-11-28 05:03:06,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 05:03:06,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:06,692 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:06,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:03:06,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:06,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:06,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1808050527, now seen corresponding path program 1 times [2024-11-28 05:03:06,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:06,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98215239] [2024-11-28 05:03:06,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:06,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-28 05:03:12,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98215239] [2024-11-28 05:03:12,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98215239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473236013] [2024-11-28 05:03:12,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:12,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:12,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:12,967 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:12,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:03:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:19,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 4709 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:03:19,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 05:03:20,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:03:20,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473236013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:20,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:03:20,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-28 05:03:20,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878734716] [2024-11-28 05:03:20,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:20,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:03:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:20,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:03:20,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:03:20,391 INFO L87 Difference]: Start difference. First operand 383 states and 545 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) [2024-11-28 05:03:22,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:22,958 INFO L93 Difference]: Finished difference Result 724 states and 1047 transitions. [2024-11-28 05:03:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:03:22,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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 180 [2024-11-28 05:03:22,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:22,963 INFO L225 Difference]: With dead ends: 724 [2024-11-28 05:03:22,964 INFO L226 Difference]: Without dead ends: 389 [2024-11-28 05:03:22,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:03:22,966 INFO L435 NwaCegarLoop]: 439 mSDtfsCounter, 514 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:22,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 2126 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:03:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-28 05:03:22,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 383. [2024-11-28 05:03:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 233 states have (on average 1.2188841201716738) internal successors, (284), 236 states have internal predecessors, (284), 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) [2024-11-28 05:03:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 545 transitions. [2024-11-28 05:03:22,992 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 545 transitions. Word has length 180 [2024-11-28 05:03:22,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:22,992 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 545 transitions. [2024-11-28 05:03:22,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) [2024-11-28 05:03:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 545 transitions. [2024-11-28 05:03:22,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-28 05:03:22,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:22,996 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:23,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:03:23,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:23,197 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:23,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:23,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1856498998, now seen corresponding path program 1 times [2024-11-28 05:03:23,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:23,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933049948] [2024-11-28 05:03:23,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:23,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-28 05:03:29,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:29,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933049948] [2024-11-28 05:03:29,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933049948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:29,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808300464] [2024-11-28 05:03:29,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:29,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:29,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:29,342 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:29,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:03:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:35,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 4781 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:03:35,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:37,366 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 05:03:37,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:03:37,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808300464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:37,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:03:37,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-28 05:03:37,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362993568] [2024-11-28 05:03:37,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:37,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:03:37,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:37,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:03:37,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:03:37,369 INFO L87 Difference]: Start difference. First operand 383 states and 545 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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) [2024-11-28 05:03:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:42,222 INFO L93 Difference]: Finished difference Result 735 states and 1057 transitions. [2024-11-28 05:03:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:03:42,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 196 [2024-11-28 05:03:42,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:42,227 INFO L225 Difference]: With dead ends: 735 [2024-11-28 05:03:42,228 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 05:03:42,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:03:42,233 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 570 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:42,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 2872 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 05:03:42,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 05:03:42,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 383. [2024-11-28 05:03:42,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 233 states have (on average 1.2188841201716738) internal successors, (284), 236 states have internal predecessors, (284), 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) [2024-11-28 05:03:42,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 545 transitions. [2024-11-28 05:03:42,265 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 545 transitions. Word has length 196 [2024-11-28 05:03:42,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:42,266 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 545 transitions. [2024-11-28 05:03:42,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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) [2024-11-28 05:03:42,267 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 545 transitions. [2024-11-28 05:03:42,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-28 05:03:42,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:42,271 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:42,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:03:42,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 05:03:42,471 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:42,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:42,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1566931669, now seen corresponding path program 1 times [2024-11-28 05:03:42,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:42,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721422517] [2024-11-28 05:03:42,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:42,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-28 05:03:48,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:48,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721422517] [2024-11-28 05:03:48,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721422517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:48,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512826558] [2024-11-28 05:03:48,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:48,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:48,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:48,295 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:48,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:03:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:54,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 4908 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:03:54,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-28 05:03:56,082 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:03:56,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512826558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:56,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:03:56,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-28 05:03:56,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686329918] [2024-11-28 05:03:56,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:56,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:03:56,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:56,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:03:56,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:03:56,084 INFO L87 Difference]: Start difference. First operand 383 states and 545 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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) [2024-11-28 05:03:59,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:59,522 INFO L93 Difference]: Finished difference Result 685 states and 991 transitions. [2024-11-28 05:03:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:03:59,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 211 [2024-11-28 05:03:59,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:59,527 INFO L225 Difference]: With dead ends: 685 [2024-11-28 05:03:59,527 INFO L226 Difference]: Without dead ends: 385 [2024-11-28 05:03:59,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:03:59,529 INFO L435 NwaCegarLoop]: 430 mSDtfsCounter, 540 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:59,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2478 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 05:03:59,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-28 05:03:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2024-11-28 05:03:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 234 states have (on average 1.2179487179487178) internal successors, (285), 238 states have internal predecessors, (285), 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) [2024-11-28 05:03:59,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 552 transitions. [2024-11-28 05:03:59,552 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 552 transitions. Word has length 211 [2024-11-28 05:03:59,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:59,553 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 552 transitions. [2024-11-28 05:03:59,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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) [2024-11-28 05:03:59,553 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 552 transitions. [2024-11-28 05:03:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-28 05:03:59,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:59,557 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:59,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:03:59,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 05:03:59,761 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:59,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:59,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1754142298, now seen corresponding path program 1 times [2024-11-28 05:03:59,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:59,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807323121] [2024-11-28 05:03:59,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:59,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-28 05:04:06,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:06,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807323121] [2024-11-28 05:04:06,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807323121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:06,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607380294] [2024-11-28 05:04:06,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:06,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:06,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:06,924 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:06,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:04:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:14,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 5085 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:04:14,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 05:04:15,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:15,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607380294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:15,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:04:15,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-28 05:04:15,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904442795] [2024-11-28 05:04:15,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:15,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:04:15,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:15,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:04:15,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:04:15,789 INFO L87 Difference]: Start difference. First operand 385 states and 552 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-28 05:04:20,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:20,012 INFO L93 Difference]: Finished difference Result 690 states and 1006 transitions. [2024-11-28 05:04:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:20,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 234 [2024-11-28 05:04:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:20,016 INFO L225 Difference]: With dead ends: 690 [2024-11-28 05:04:20,017 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 05:04:20,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:04:20,019 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 556 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:20,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 2826 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 05:04:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 05:04:20,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 386. [2024-11-28 05:04:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 235 states have (on average 1.2170212765957447) internal successors, (286), 239 states have internal predecessors, (286), 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) [2024-11-28 05:04:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 553 transitions. [2024-11-28 05:04:20,043 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 553 transitions. Word has length 234 [2024-11-28 05:04:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:20,044 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 553 transitions. [2024-11-28 05:04:20,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-28 05:04:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 553 transitions. [2024-11-28 05:04:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-28 05:04:20,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:20,048 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:20,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 05:04:20,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:20,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:20,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:20,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1242127064, now seen corresponding path program 2 times [2024-11-28 05:04:20,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:20,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198854940] [2024-11-28 05:04:20,250 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:04:20,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:25,728 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:04:25,728 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-28 05:04:28,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:28,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198854940] [2024-11-28 05:04:28,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198854940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:28,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:28,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:04:28,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144539920] [2024-11-28 05:04:28,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:28,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:04:28,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:28,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:04:28,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:28,073 INFO L87 Difference]: Start difference. First operand 386 states and 553 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-28 05:04:29,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:29,800 INFO L93 Difference]: Finished difference Result 682 states and 990 transitions. [2024-11-28 05:04:29,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:29,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) Word has length 265 [2024-11-28 05:04:29,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:29,805 INFO L225 Difference]: With dead ends: 682 [2024-11-28 05:04:29,805 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 05:04:29,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:04:29,808 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 112 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:29,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 3563 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 05:04:29,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 05:04:29,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-11-28 05:04:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 236 states have (on average 1.2161016949152543) internal successors, (287), 241 states have internal predecessors, (287), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (149), 121 states have call predecessors, (149), 120 states have call successors, (149) [2024-11-28 05:04:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 558 transitions. [2024-11-28 05:04:29,848 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 558 transitions. Word has length 265 [2024-11-28 05:04:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:29,849 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 558 transitions. [2024-11-28 05:04:29,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-28 05:04:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 558 transitions. [2024-11-28 05:04:29,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-28 05:04:29,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:29,857 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:29,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:04:29,858 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:29,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:29,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1038905855, now seen corresponding path program 1 times [2024-11-28 05:04:29,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:29,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271650712] [2024-11-28 05:04:29,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:29,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-28 05:04:36,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:36,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271650712] [2024-11-28 05:04:36,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271650712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:36,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813593121] [2024-11-28 05:04:36,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:36,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:36,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:36,923 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:36,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:04:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:44,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 5511 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:04:44,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-28 05:04:46,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:46,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813593121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:46,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:04:46,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2024-11-28 05:04:46,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774890574] [2024-11-28 05:04:46,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:46,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:04:46,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:46,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:04:46,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:04:46,924 INFO L87 Difference]: Start difference. First operand 388 states and 558 transitions. Second operand has 11 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-28 05:04:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:53,845 INFO L93 Difference]: Finished difference Result 693 states and 1008 transitions. [2024-11-28 05:04:53,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:04:53,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) Word has length 296 [2024-11-28 05:04:53,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:53,849 INFO L225 Difference]: With dead ends: 693 [2024-11-28 05:04:53,850 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 05:04:53,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:04:53,853 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 613 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:53,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 3508 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 05:04:53,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 05:04:53,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 385. [2024-11-28 05:04:53,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 234 states have (on average 1.2179487179487178) internal successors, (285), 238 states have internal predecessors, (285), 122 states have call successors, (122), 25 states have call predecessors, (122), 27 states have return successors, (141), 121 states have call predecessors, (141), 120 states have call successors, (141) [2024-11-28 05:04:53,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 548 transitions. [2024-11-28 05:04:53,876 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 548 transitions. Word has length 296 [2024-11-28 05:04:53,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:53,877 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 548 transitions. [2024-11-28 05:04:53,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-28 05:04:53,878 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 548 transitions. [2024-11-28 05:04:53,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-28 05:04:53,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:53,880 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:53,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 05:04:54,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:54,081 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:54,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:54,081 INFO L85 PathProgramCache]: Analyzing trace with hash -307491624, now seen corresponding path program 1 times [2024-11-28 05:04:54,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:54,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248437694] [2024-11-28 05:04:54,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:54,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-11-28 05:05:00,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248437694] [2024-11-28 05:05:00,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248437694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425748764] [2024-11-28 05:05:00,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:00,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:00,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:00,455 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:00,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:05:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:08,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 5638 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:05:08,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 05:05:10,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:05:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425748764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:10,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:05:10,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2024-11-28 05:05:10,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842600536] [2024-11-28 05:05:10,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:10,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:05:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:10,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:05:10,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:05:10,245 INFO L87 Difference]: Start difference. First operand 385 states and 548 transitions. Second operand has 11 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 6 states have call successors, (35), 4 states have call predecessors, (35), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 05:05:16,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:16,296 INFO L93 Difference]: Finished difference Result 681 states and 983 transitions. [2024-11-28 05:05:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:05:16,297 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 6 states have call successors, (35), 4 states have call predecessors, (35), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 311 [2024-11-28 05:05:16,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:16,300 INFO L225 Difference]: With dead ends: 681 [2024-11-28 05:05:16,300 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 05:05:16,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:05:16,302 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 577 mSDsluCounter, 3139 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:16,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 3551 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 05:05:16,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 05:05:16,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 386. [2024-11-28 05:05:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 235 states have (on average 1.2170212765957447) internal successors, (286), 239 states have internal predecessors, (286), 122 states have call successors, (122), 25 states have call predecessors, (122), 27 states have return successors, (141), 121 states have call predecessors, (141), 120 states have call successors, (141) [2024-11-28 05:05:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 549 transitions. [2024-11-28 05:05:16,327 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 549 transitions. Word has length 311 [2024-11-28 05:05:16,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:16,327 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 549 transitions. [2024-11-28 05:05:16,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 6 states have call successors, (35), 4 states have call predecessors, (35), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 05:05:16,328 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 549 transitions. [2024-11-28 05:05:16,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-28 05:05:16,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:16,330 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 05:05:16,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 05:05:16,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:16,531 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:16,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:16,531 INFO L85 PathProgramCache]: Analyzing trace with hash -158332176, now seen corresponding path program 1 times [2024-11-28 05:05:16,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:16,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688076685] [2024-11-28 05:05:16,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2024-11-28 05:05:22,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:22,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688076685] [2024-11-28 05:05:22,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688076685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:22,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:22,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:05:22,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223887513] [2024-11-28 05:05:22,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:22,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:05:22,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:22,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:05:22,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:05:22,254 INFO L87 Difference]: Start difference. First operand 386 states and 549 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2024-11-28 05:05:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:23,546 INFO L93 Difference]: Finished difference Result 654 states and 938 transitions. [2024-11-28 05:05:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:05:23,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 283 [2024-11-28 05:05:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:23,551 INFO L225 Difference]: With dead ends: 654 [2024-11-28 05:05:23,551 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 05:05:23,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:05:23,553 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 102 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:23,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 3130 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:05:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 05:05:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-11-28 05:05:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 236 states have (on average 1.2161016949152543) internal successors, (287), 241 states have internal predecessors, (287), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (143), 121 states have call predecessors, (143), 120 states have call successors, (143) [2024-11-28 05:05:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 552 transitions. [2024-11-28 05:05:23,578 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 552 transitions. Word has length 283 [2024-11-28 05:05:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:23,578 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 552 transitions. [2024-11-28 05:05:23,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2024-11-28 05:05:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 552 transitions. [2024-11-28 05:05:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-28 05:05:23,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:23,581 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:05:23,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:05:23,582 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:23,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:23,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1404197740, now seen corresponding path program 1 times [2024-11-28 05:05:23,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:23,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466241937] [2024-11-28 05:05:23,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:23,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-11-28 05:05:29,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:29,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466241937] [2024-11-28 05:05:29,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466241937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:29,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140740778] [2024-11-28 05:05:29,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:29,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:29,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:29,803 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:29,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:05:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:37,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 5359 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:05:37,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-28 05:05:39,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:05:39,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140740778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:39,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:05:39,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2024-11-28 05:05:39,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877483050] [2024-11-28 05:05:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:39,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:05:39,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:39,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:05:39,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:05:39,724 INFO L87 Difference]: Start difference. First operand 388 states and 552 transitions. Second operand has 11 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 05:05:45,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:45,946 INFO L93 Difference]: Finished difference Result 675 states and 972 transitions. [2024-11-28 05:05:45,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:05:45,947 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 291 [2024-11-28 05:05:45,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:45,951 INFO L225 Difference]: With dead ends: 675 [2024-11-28 05:05:45,951 INFO L226 Difference]: Without dead ends: 407 [2024-11-28 05:05:45,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:05:45,952 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 607 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:45,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 3565 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 05:05:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-28 05:05:45,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 405. [2024-11-28 05:05:45,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 251 states have (on average 1.2231075697211156) internal successors, (307), 256 states have internal predecessors, (307), 123 states have call successors, (123), 25 states have call predecessors, (123), 29 states have return successors, (148), 123 states have call predecessors, (148), 121 states have call successors, (148) [2024-11-28 05:05:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 578 transitions. [2024-11-28 05:05:45,982 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 578 transitions. Word has length 291 [2024-11-28 05:05:45,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:45,983 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 578 transitions. [2024-11-28 05:05:45,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 05:05:45,983 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 578 transitions. [2024-11-28 05:05:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-28 05:05:45,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:45,986 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:05:46,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 05:05:46,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 05:05:46,186 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:46,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash 812886893, now seen corresponding path program 2 times [2024-11-28 05:05:46,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:46,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858722039] [2024-11-28 05:05:46,187 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:05:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:50,961 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:05:50,961 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:05:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2024-11-28 05:05:52,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:52,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858722039] [2024-11-28 05:05:52,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858722039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:52,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:52,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:05:52,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649392851] [2024-11-28 05:05:52,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:52,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:05:52,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:52,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:05:52,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:05:52,399 INFO L87 Difference]: Start difference. First operand 405 states and 578 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 05:05:54,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:54,300 INFO L93 Difference]: Finished difference Result 690 states and 989 transitions. [2024-11-28 05:05:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:05:54,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 306 [2024-11-28 05:05:54,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:54,305 INFO L225 Difference]: With dead ends: 690 [2024-11-28 05:05:54,305 INFO L226 Difference]: Without dead ends: 405 [2024-11-28 05:05:54,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:05:54,308 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 119 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:54,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 3523 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:05:54,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-28 05:05:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 402. [2024-11-28 05:05:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 249 states have (on average 1.2248995983935742) internal successors, (305), 253 states have internal predecessors, (305), 123 states have call successors, (123), 25 states have call predecessors, (123), 28 states have return successors, (144), 123 states have call predecessors, (144), 121 states have call successors, (144) [2024-11-28 05:05:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 572 transitions. [2024-11-28 05:05:54,332 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 572 transitions. Word has length 306 [2024-11-28 05:05:54,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:54,333 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 572 transitions. [2024-11-28 05:05:54,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 05:05:54,333 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 572 transitions. [2024-11-28 05:05:54,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-28 05:05:54,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:54,336 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:54,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:05:54,336 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:54,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:54,337 INFO L85 PathProgramCache]: Analyzing trace with hash 541639933, now seen corresponding path program 1 times [2024-11-28 05:05:54,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:54,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756579846] [2024-11-28 05:05:54,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:54,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-28 05:06:00,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:00,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756579846] [2024-11-28 05:06:00,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756579846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:00,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442916143] [2024-11-28 05:06:00,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:00,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:00,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:00,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 05:06:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:08,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 5685 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:06:08,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:11,122 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2024-11-28 05:06:11,122 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:06:11,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442916143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:11,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:06:11,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2024-11-28 05:06:11,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598446713] [2024-11-28 05:06:11,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:11,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:06:11,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:11,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:06:11,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:06:11,125 INFO L87 Difference]: Start difference. First operand 402 states and 572 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (34), 4 states have call predecessors, (34), 3 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2024-11-28 05:06:16,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:16,833 INFO L93 Difference]: Finished difference Result 691 states and 990 transitions. [2024-11-28 05:06:16,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:06:16,834 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (34), 4 states have call predecessors, (34), 3 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) Word has length 337 [2024-11-28 05:06:16,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:16,839 INFO L225 Difference]: With dead ends: 691 [2024-11-28 05:06:16,839 INFO L226 Difference]: Without dead ends: 414 [2024-11-28 05:06:16,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:06:16,841 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 588 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 3603 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:16,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 3603 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 05:06:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-28 05:06:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-11-28 05:06:16,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 255 states have (on average 1.223529411764706) internal successors, (312), 259 states have internal predecessors, (312), 128 states have call successors, (128), 26 states have call predecessors, (128), 29 states have return successors, (149), 128 states have call predecessors, (149), 126 states have call successors, (149) [2024-11-28 05:06:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 589 transitions. [2024-11-28 05:06:16,866 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 589 transitions. Word has length 337 [2024-11-28 05:06:16,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:16,867 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 589 transitions. [2024-11-28 05:06:16,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (34), 4 states have call predecessors, (34), 3 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2024-11-28 05:06:16,867 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 589 transitions. [2024-11-28 05:06:16,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-28 05:06:16,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:16,870 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:16,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 05:06:17,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:17,071 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:17,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:17,072 INFO L85 PathProgramCache]: Analyzing trace with hash -792318258, now seen corresponding path program 1 times [2024-11-28 05:06:17,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:17,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395641377] [2024-11-28 05:06:17,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:17,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 52 proven. 74 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2024-11-28 05:06:40,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:40,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395641377] [2024-11-28 05:06:40,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395641377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:40,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658882237] [2024-11-28 05:06:40,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:40,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:40,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:40,296 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:40,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:06:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:49,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 6036 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-28 05:06:49,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 599 proven. 12 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-28 05:06:58,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:07:11,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658882237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:07:11,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:07:11,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19] total 30 [2024-11-28 05:07:11,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308447118] [2024-11-28 05:07:11,770 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:07:11,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 05:07:11,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:11,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 05:07:11,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1069, Unknown=2, NotChecked=0, Total=1190 [2024-11-28 05:07:11,772 INFO L87 Difference]: Start difference. First operand 414 states and 589 transitions. Second operand has 30 states, 27 states have (on average 7.296296296296297) internal successors, (197), 29 states have internal predecessors, (197), 16 states have call successors, (60), 4 states have call predecessors, (60), 7 states have return successors, (57), 15 states have call predecessors, (57), 16 states have call successors, (57) [2024-11-28 05:07:15,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:20,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:24,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:28,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:32,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:36,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:40,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:44,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:49,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:53,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:07:57,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:01,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:05,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:10,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:14,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:19,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:23,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:27,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:31,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:35,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:40,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:44,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:48,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:55,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:08:59,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:03,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:07,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:11,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:15,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:19,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:24,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:28,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:32,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:36,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:40,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:44,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:09:57,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:03,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:09,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:20,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:24,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:28,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:35,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:44,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:10:54,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:10:58,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:03,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:07,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:12,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:16,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:24,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:29,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:34,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:11:37,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:37,289 INFO L93 Difference]: Finished difference Result 1407 states and 2176 transitions. [2024-11-28 05:11:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 05:11:37,290 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 7.296296296296297) internal successors, (197), 29 states have internal predecessors, (197), 16 states have call successors, (60), 4 states have call predecessors, (60), 7 states have return successors, (57), 15 states have call predecessors, (57), 16 states have call successors, (57) Word has length 373 [2024-11-28 05:11:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:37,303 INFO L225 Difference]: With dead ends: 1407 [2024-11-28 05:11:37,303 INFO L226 Difference]: Without dead ends: 1021 [2024-11-28 05:11:37,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 541 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=351, Invalid=3069, Unknown=2, NotChecked=0, Total=3422 [2024-11-28 05:11:37,308 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 619 mSDsluCounter, 7669 mSDsCounter, 0 mSdLazyCounter, 5888 mSolverCounterSat, 94 mSolverCounterUnsat, 53 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 257.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 8179 SdHoareTripleChecker+Invalid, 6035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5888 IncrementalHoareTripleChecker+Invalid, 53 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 259.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:37,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 8179 Invalid, 6035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 5888 Invalid, 53 Unknown, 0 Unchecked, 259.2s Time] [2024-11-28 05:11:37,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-28 05:11:37,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 935. [2024-11-28 05:11:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 598 states have (on average 1.2374581939799332) internal successors, (740), 604 states have internal predecessors, (740), 274 states have call successors, (274), 49 states have call predecessors, (274), 61 states have return successors, (398), 281 states have call predecessors, (398), 271 states have call successors, (398) [2024-11-28 05:11:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1412 transitions. [2024-11-28 05:11:37,413 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1412 transitions. Word has length 373 [2024-11-28 05:11:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:37,414 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1412 transitions. [2024-11-28 05:11:37,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 7.296296296296297) internal successors, (197), 29 states have internal predecessors, (197), 16 states have call successors, (60), 4 states have call predecessors, (60), 7 states have return successors, (57), 15 states have call predecessors, (57), 16 states have call successors, (57) [2024-11-28 05:11:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1412 transitions. [2024-11-28 05:11:37,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-28 05:11:37,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:37,419 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:37,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:11:37,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 05:11:37,621 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:37,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:37,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1097804651, now seen corresponding path program 1 times [2024-11-28 05:11:37,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:37,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077479811] [2024-11-28 05:11:37,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:37,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:45,273 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 53 proven. 25 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2024-11-28 05:11:45,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:45,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077479811] [2024-11-28 05:11:45,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077479811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:45,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167354326] [2024-11-28 05:11:45,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:45,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:45,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:45,276 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:45,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 05:11:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:54,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 5894 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:11:54,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-28 05:11:55,212 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:55,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167354326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:55,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:55,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-28 05:11:55,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982005831] [2024-11-28 05:11:55,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:55,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:11:55,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:55,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:11:55,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:11:55,214 INFO L87 Difference]: Start difference. First operand 935 states and 1412 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-28 05:11:55,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:55,390 INFO L93 Difference]: Finished difference Result 1822 states and 2927 transitions. [2024-11-28 05:11:55,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:11:55,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 358 [2024-11-28 05:11:55,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:55,401 INFO L225 Difference]: With dead ends: 1822 [2024-11-28 05:11:55,402 INFO L226 Difference]: Without dead ends: 935 [2024-11-28 05:11:55,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:11:55,411 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 0 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:55,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1484 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:11:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-28 05:11:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 935. [2024-11-28 05:11:55,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 598 states have (on average 1.234113712374582) internal successors, (738), 604 states have internal predecessors, (738), 274 states have call successors, (274), 49 states have call predecessors, (274), 61 states have return successors, (398), 281 states have call predecessors, (398), 271 states have call successors, (398) [2024-11-28 05:11:55,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1410 transitions. [2024-11-28 05:11:55,500 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1410 transitions. Word has length 358 [2024-11-28 05:11:55,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:55,501 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1410 transitions. [2024-11-28 05:11:55,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-28 05:11:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1410 transitions. [2024-11-28 05:11:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-28 05:11:55,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:55,506 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:55,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 05:11:55,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:55,707 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:55,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:55,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1976660490, now seen corresponding path program 1 times [2024-11-28 05:11:55,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:55,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035384788] [2024-11-28 05:11:55,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:55,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-28 05:12:02,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:02,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035384788] [2024-11-28 05:12:02,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035384788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:02,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880483347] [2024-11-28 05:12:02,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:02,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:02,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:02,795 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:02,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 05:12:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:12,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 5528 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:12:12,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-28 05:12:15,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-28 05:12:21,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880483347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:21,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:12:21,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 29 [2024-11-28 05:12:21,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990788427] [2024-11-28 05:12:21,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:21,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 05:12:21,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:21,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 05:12:21,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:12:21,809 INFO L87 Difference]: Start difference. First operand 935 states and 1410 transitions. Second operand has 29 states, 26 states have (on average 7.423076923076923) internal successors, (193), 23 states have internal predecessors, (193), 16 states have call successors, (83), 8 states have call predecessors, (83), 6 states have return successors, (76), 10 states have call predecessors, (76), 16 states have call successors, (76) [2024-11-28 05:12:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:35,861 INFO L93 Difference]: Finished difference Result 1733 states and 2631 transitions. [2024-11-28 05:12:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:12:35,862 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 7.423076923076923) internal successors, (193), 23 states have internal predecessors, (193), 16 states have call successors, (83), 8 states have call predecessors, (83), 6 states have return successors, (76), 10 states have call predecessors, (76), 16 states have call successors, (76) Word has length 317 [2024-11-28 05:12:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:35,870 INFO L225 Difference]: With dead ends: 1733 [2024-11-28 05:12:35,870 INFO L226 Difference]: Without dead ends: 941 [2024-11-28 05:12:35,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 616 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=165, Invalid=1317, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 05:12:35,876 INFO L435 NwaCegarLoop]: 404 mSDtfsCounter, 984 mSDsluCounter, 5775 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 6179 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:35,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 6179 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-28 05:12:35,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-28 05:12:35,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 929. [2024-11-28 05:12:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 594 states have (on average 1.2356902356902357) internal successors, (734), 598 states have internal predecessors, (734), 274 states have call successors, (274), 49 states have call predecessors, (274), 59 states have return successors, (386), 281 states have call predecessors, (386), 271 states have call successors, (386) [2024-11-28 05:12:35,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1394 transitions. [2024-11-28 05:12:35,957 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1394 transitions. Word has length 317 [2024-11-28 05:12:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:35,957 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1394 transitions. [2024-11-28 05:12:35,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 7.423076923076923) internal successors, (193), 23 states have internal predecessors, (193), 16 states have call successors, (83), 8 states have call predecessors, (83), 6 states have return successors, (76), 10 states have call predecessors, (76), 16 states have call successors, (76) [2024-11-28 05:12:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1394 transitions. [2024-11-28 05:12:35,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 05:12:35,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:35,963 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-28 05:12:36,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 05:12:36,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:36,164 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:36,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1276121265, now seen corresponding path program 2 times [2024-11-28 05:12:36,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:36,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891632560] [2024-11-28 05:12:36,165 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:12:36,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:41,677 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:12:41,677 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:12:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2024-11-28 05:12:43,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:43,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891632560] [2024-11-28 05:12:43,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891632560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:43,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:43,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:12:43,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26953678] [2024-11-28 05:12:43,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:43,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:12:43,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:43,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:12:43,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:12:43,181 INFO L87 Difference]: Start difference. First operand 929 states and 1394 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-28 05:12:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:44,275 INFO L93 Difference]: Finished difference Result 1810 states and 2879 transitions. [2024-11-28 05:12:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:12:44,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 364 [2024-11-28 05:12:44,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:44,285 INFO L225 Difference]: With dead ends: 1810 [2024-11-28 05:12:44,285 INFO L226 Difference]: Without dead ends: 929 [2024-11-28 05:12:44,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:12:44,293 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 3 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:44,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1895 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:12:44,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-28 05:12:44,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2024-11-28 05:12:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 594 states have (on average 1.2323232323232323) internal successors, (732), 598 states have internal predecessors, (732), 274 states have call successors, (274), 49 states have call predecessors, (274), 59 states have return successors, (386), 281 states have call predecessors, (386), 271 states have call successors, (386) [2024-11-28 05:12:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1392 transitions. [2024-11-28 05:12:44,369 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1392 transitions. Word has length 364 [2024-11-28 05:12:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:44,370 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1392 transitions. [2024-11-28 05:12:44,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-28 05:12:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1392 transitions. [2024-11-28 05:12:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-28 05:12:44,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:44,375 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:44,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:12:44,375 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:44,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:44,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1232485095, now seen corresponding path program 1 times [2024-11-28 05:12:44,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:44,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849140103] [2024-11-28 05:12:44,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 53 proven. 25 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2024-11-28 05:12:51,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:51,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849140103] [2024-11-28 05:12:51,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849140103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:51,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693424035] [2024-11-28 05:12:51,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:51,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:51,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:51,844 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:51,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 05:13:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:01,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 5914 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 05:13:01,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-11-28 05:13:05,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:13:05,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693424035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:05,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:13:05,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 23 [2024-11-28 05:13:05,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066449825] [2024-11-28 05:13:05,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:05,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:13:05,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:05,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:13:05,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:13:05,171 INFO L87 Difference]: Start difference. First operand 929 states and 1392 transitions. Second operand has 13 states, 12 states have (on average 11.5) internal successors, (138), 11 states have internal predecessors, (138), 7 states have call successors, (37), 4 states have call predecessors, (37), 4 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-28 05:13:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:15,521 INFO L93 Difference]: Finished difference Result 1717 states and 2593 transitions. [2024-11-28 05:13:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:13:15,522 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.5) internal successors, (138), 11 states have internal predecessors, (138), 7 states have call successors, (37), 4 states have call predecessors, (37), 4 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34) Word has length 362 [2024-11-28 05:13:15,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:15,532 INFO L225 Difference]: With dead ends: 1717 [2024-11-28 05:13:15,532 INFO L226 Difference]: Without dead ends: 931 [2024-11-28 05:13:15,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:13:15,539 INFO L435 NwaCegarLoop]: 399 mSDtfsCounter, 633 mSDsluCounter, 3806 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 4205 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:15,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 4205 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-28 05:13:15,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-28 05:13:15,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 929. [2024-11-28 05:13:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 594 states have (on average 1.2323232323232323) internal successors, (732), 598 states have internal predecessors, (732), 274 states have call successors, (274), 49 states have call predecessors, (274), 59 states have return successors, (378), 281 states have call predecessors, (378), 271 states have call successors, (378) [2024-11-28 05:13:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1384 transitions. [2024-11-28 05:13:15,622 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1384 transitions. Word has length 362 [2024-11-28 05:13:15,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:15,623 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1384 transitions. [2024-11-28 05:13:15,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.5) internal successors, (138), 11 states have internal predecessors, (138), 7 states have call successors, (37), 4 states have call predecessors, (37), 4 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-28 05:13:15,623 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1384 transitions. [2024-11-28 05:13:15,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-28 05:13:15,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:15,628 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:15,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 05:13:15,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:15,831 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:15,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:15,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1087828370, now seen corresponding path program 1 times [2024-11-28 05:13:15,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:15,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575529106] [2024-11-28 05:13:15,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:15,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:44,851 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 50 proven. 82 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2024-11-28 05:13:44,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:44,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575529106] [2024-11-28 05:13:44,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575529106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:44,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448704947] [2024-11-28 05:13:44,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:44,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:44,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:44,853 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:44,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 05:13:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:55,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 6016 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:13:55,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2024-11-28 05:13:56,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:13:56,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448704947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:56,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:13:56,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 26 [2024-11-28 05:13:56,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975963037] [2024-11-28 05:13:56,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:56,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:56,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:56,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:56,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:13:56,281 INFO L87 Difference]: Start difference. First operand 929 states and 1384 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 05:13:56,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:56,549 INFO L93 Difference]: Finished difference Result 1781 states and 2725 transitions. [2024-11-28 05:13:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:56,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 373 [2024-11-28 05:13:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:56,560 INFO L225 Difference]: With dead ends: 1781 [2024-11-28 05:13:56,560 INFO L226 Difference]: Without dead ends: 935 [2024-11-28 05:13:56,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:13:56,567 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 2 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:56,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1990 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:13:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-28 05:13:56,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 935. [2024-11-28 05:13:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 600 states have (on average 1.2233333333333334) internal successors, (734), 604 states have internal predecessors, (734), 274 states have call successors, (274), 49 states have call predecessors, (274), 59 states have return successors, (378), 281 states have call predecessors, (378), 271 states have call successors, (378) [2024-11-28 05:13:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1386 transitions. [2024-11-28 05:13:56,652 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1386 transitions. Word has length 373 [2024-11-28 05:13:56,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:56,653 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1386 transitions. [2024-11-28 05:13:56,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 05:13:56,658 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1386 transitions. [2024-11-28 05:13:56,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-11-28 05:13:56,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:56,666 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:56,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 05:13:56,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3f42b7-49cd-4eb6-89d8-a2e84d29d97f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:56,867 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:56,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:56,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1198143550, now seen corresponding path program 1 times [2024-11-28 05:13:56,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:56,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454207595] [2024-11-28 05:13:56,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:56,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat