./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC --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 215e983f1a4d8fc7cc2a4702392b572c8acf5b74a884ac30ea5939c84fb288fd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:30:53,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:30:53,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 23:30:53,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:30:53,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:30:53,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:30:53,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:30:53,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:30:53,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:30:53,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:30:53,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:30:53,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:30:53,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:30:53,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:30:53,604 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:30:53,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:30:53,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:30:53,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:30:53,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:30:53,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:30:53,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:30:53,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:30:53,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:30:53,606 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:30:53,606 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:30:53,606 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:30:53,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:30:53,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:30:53,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:30:53,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:30:53,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:30:53,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:30:53,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:30:53,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:30:53,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:30:53,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:30:53,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:30:53,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:30:53,609 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_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC 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 -> 215e983f1a4d8fc7cc2a4702392b572c8acf5b74a884ac30ea5939c84fb288fd [2024-11-23 23:30:53,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:30:53,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:30:53,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:30:53,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:30:53,985 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:30:53,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2024-11-23 23:30:57,176 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/data/a8cfac04d/af765868376d4234bc052fdaec33e985/FLAGeb6e2ca12 [2024-11-23 23:30:57,972 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:30:57,975 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2024-11-23 23:30:58,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/data/a8cfac04d/af765868376d4234bc052fdaec33e985/FLAGeb6e2ca12 [2024-11-23 23:30:58,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/data/a8cfac04d/af765868376d4234bc052fdaec33e985 [2024-11-23 23:30:58,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:30:58,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:30:58,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:30:58,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:30:58,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:30:58,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:30:58" (1/1) ... [2024-11-23 23:30:58,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2810a617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:58, skipping insertion in model container [2024-11-23 23:30:58,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:30:58" (1/1) ... [2024-11-23 23:30:58,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:30:58,437 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_db3be423-6330-4db4-8617-18f83d18e86b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2024-11-23 23:30:58,444 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_db3be423-6330-4db4-8617-18f83d18e86b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2024-11-23 23:30:59,559 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,560 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,561 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,562 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,563 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,585 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,586 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,589 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,590 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,595 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,596 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:30:59,597 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,482 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,492 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,632 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,632 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,634 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,634 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,635 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,635 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,636 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,636 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,641 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,642 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,643 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,643 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,648 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,649 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,659 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,660 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,661 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:31:00,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:31:00,732 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_db3be423-6330-4db4-8617-18f83d18e86b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2024-11-23 23:31:00,733 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_db3be423-6330-4db4-8617-18f83d18e86b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2024-11-23 23:31:00,790 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,790 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,791 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,792 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,792 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,811 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,812 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,814 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,814 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,816 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,817 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,817 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,818 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,969 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,975 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:00,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2024-11-23 23:31:01,016 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,017 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,017 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,018 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,021 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,022 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,022 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,023 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,024 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,024 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,024 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,024 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,025 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,025 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,026 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,026 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,028 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,031 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,034 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,045 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,046 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,047 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:31:01,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:31:01,319 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:31:01,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01 WrapperNode [2024-11-23 23:31:01,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:31:01,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:31:01,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:31:01,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:31:01,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,495 INFO L138 Inliner]: procedures = 686, calls = 1930, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 1059 [2024-11-23 23:31:01,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:31:01,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:31:01,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:31:01,497 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:31:01,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,702 INFO L175 MemorySlicer]: Split 392 memory accesses to 6 slices as follows [2, 96, 13, 17, 261, 3]. 67 percent of accesses are in the largest equivalence class. The 30 initializations are split as follows [2, 0, 11, 4, 12, 1]. The 262 writes are split as follows [0, 18, 0, 3, 240, 1]. [2024-11-23 23:31:01,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,773 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:31:01,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:31:01,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:31:01,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:31:01,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (1/1) ... [2024-11-23 23:31:01,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:31:01,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:31:01,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:31:01,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:31:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-23 23:31:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-23 23:31:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-23 23:31:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-23 23:31:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:31:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-23 23:31:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-23 23:31:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-23 23:31:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-23 23:31:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-23 23:31:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-23 23:31:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-23 23:31:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-23 23:31:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:31:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:31:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:31:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:31:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-23 23:31:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-23 23:31:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 23:31:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 23:31:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2024-11-23 23:31:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2024-11-23 23:31:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-23 23:31:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-23 23:31:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:31:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-23 23:31:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-23 23:31:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-23 23:31:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-23 23:31:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-23 23:31:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-23 23:31:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-23 23:31:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-23 23:31:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-23 23:31:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:31:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:31:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:31:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:31:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:31:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-23 23:31:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-23 23:31:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-23 23:31:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-23 23:31:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-23 23:31:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-23 23:31:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:31:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:31:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:31:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:31:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:31:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:31:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-23 23:31:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-23 23:31:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-23 23:31:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-23 23:31:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-23 23:31:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-23 23:31:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:31:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:31:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:31:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:31:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:31:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:31:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2024-11-23 23:31:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2024-11-23 23:31:02,415 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:31:02,418 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:31:09,661 INFO L? ?]: Removed 258 outVars from TransFormulas that were not future-live. [2024-11-23 23:31:09,662 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:31:09,758 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:31:09,758 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-23 23:31:09,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:09 BoogieIcfgContainer [2024-11-23 23:31:09,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:31:09,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:31:09,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:31:09,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:31:09,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:30:58" (1/3) ... [2024-11-23 23:31:09,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2787494f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:09, skipping insertion in model container [2024-11-23 23:31:09,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:01" (2/3) ... [2024-11-23 23:31:09,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2787494f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:09, skipping insertion in model container [2024-11-23 23:31:09,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:09" (3/3) ... [2024-11-23 23:31:09,779 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2024-11-23 23:31:09,800 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:31:09,802 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_pop_harness.i that has 34 procedures, 477 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-11-23 23:31:09,908 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:31:09,925 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;@7855f5f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:31:09,926 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 23:31:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 265 states have (on average 1.2452830188679245) internal successors, (330), 268 states have internal predecessors, (330), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-23 23:31:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-23 23:31:09,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:09,955 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:09,956 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:09,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:09,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1706138168, now seen corresponding path program 1 times [2024-11-23 23:31:09,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:09,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851772157] [2024-11-23 23:31:09,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:09,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-23 23:31:18,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:18,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851772157] [2024-11-23 23:31:18,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851772157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:31:18,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582228223] [2024-11-23 23:31:18,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:18,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:31:18,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:31:18,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:31:19,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:31:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:27,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 4537 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:31:27,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:31:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-23 23:31:27,775 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:31:27,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582228223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:27,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:31:27,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:31:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152673295] [2024-11-23 23:31:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:27,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:31:27,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:27,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:31:27,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:31:27,805 INFO L87 Difference]: Start difference. First operand has 457 states, 265 states have (on average 1.2452830188679245) internal successors, (330), 268 states have internal predecessors, (330), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-23 23:31:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:27,966 INFO L93 Difference]: Finished difference Result 886 states and 1399 transitions. [2024-11-23 23:31:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:31:27,969 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 163 [2024-11-23 23:31:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:27,989 INFO L225 Difference]: With dead ends: 886 [2024-11-23 23:31:27,989 INFO L226 Difference]: Without dead ends: 450 [2024-11-23 23:31:28,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:31:28,013 INFO L435 NwaCegarLoop]: 643 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, 643 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 [2024-11-23 23:31:28,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:31:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-23 23:31:28,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-23 23:31:28,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 259 states have (on average 1.22007722007722) internal successors, (316), 262 states have internal predecessors, (316), 162 states have call successors, (162), 28 states have call predecessors, (162), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-23 23:31:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 638 transitions. [2024-11-23 23:31:28,118 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 638 transitions. Word has length 163 [2024-11-23 23:31:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:28,120 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 638 transitions. [2024-11-23 23:31:28,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-23 23:31:28,120 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 638 transitions. [2024-11-23 23:31:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-23 23:31:28,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:28,125 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:28,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:31:28,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:31:28,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:28,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:28,331 INFO L85 PathProgramCache]: Analyzing trace with hash 261590474, now seen corresponding path program 1 times [2024-11-23 23:31:28,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:28,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065702584] [2024-11-23 23:31:28,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:28,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-23 23:31:36,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:36,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065702584] [2024-11-23 23:31:36,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065702584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:31:36,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790759576] [2024-11-23 23:31:36,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:36,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:31:36,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:31:36,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:31:36,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:31:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:44,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 4537 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:31:44,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:31:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-23 23:31:45,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:31:45,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790759576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:45,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:31:45,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-23 23:31:45,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743560755] [2024-11-23 23:31:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:45,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:31:45,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:45,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:31:45,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:31:45,395 INFO L87 Difference]: Start difference. First operand 450 states and 638 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 23:31:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:47,808 INFO L93 Difference]: Finished difference Result 851 states and 1225 transitions. [2024-11-23 23:31:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:31:47,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 163 [2024-11-23 23:31:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:47,817 INFO L225 Difference]: With dead ends: 851 [2024-11-23 23:31:47,817 INFO L226 Difference]: Without dead ends: 452 [2024-11-23 23:31:47,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:31:47,822 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 641 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:47,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 2218 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 23:31:47,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-23 23:31:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-23 23:31:47,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 260 states have (on average 1.2192307692307693) internal successors, (317), 264 states have internal predecessors, (317), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (173), 160 states have call predecessors, (173), 160 states have call successors, (173) [2024-11-23 23:31:47,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 652 transitions. [2024-11-23 23:31:47,910 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 652 transitions. Word has length 163 [2024-11-23 23:31:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:47,911 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 652 transitions. [2024-11-23 23:31:47,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 23:31:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 652 transitions. [2024-11-23 23:31:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-23 23:31:47,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:47,919 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:47,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:31:48,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:31:48,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:48,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:48,120 INFO L85 PathProgramCache]: Analyzing trace with hash 679924284, now seen corresponding path program 1 times [2024-11-23 23:31:48,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:48,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677991464] [2024-11-23 23:31:48,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-23 23:31:56,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:56,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677991464] [2024-11-23 23:31:56,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677991464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:31:56,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138792861] [2024-11-23 23:31:56,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:56,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:31:56,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:31:56,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:31:56,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:32:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:03,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 4587 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:32:03,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:32:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-23 23:32:04,908 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:32:04,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138792861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:04,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:32:04,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-23 23:32:04,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786358843] [2024-11-23 23:32:04,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:04,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:32:04,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:04,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:32:04,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:32:04,910 INFO L87 Difference]: Start difference. First operand 452 states and 652 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-23 23:32:09,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:09,758 INFO L93 Difference]: Finished difference Result 874 states and 1296 transitions. [2024-11-23 23:32:09,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:32:09,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 171 [2024-11-23 23:32:09,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:09,769 INFO L225 Difference]: With dead ends: 874 [2024-11-23 23:32:09,769 INFO L226 Difference]: Without dead ends: 473 [2024-11-23 23:32:09,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:32:09,774 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 691 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:09,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 3180 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 23:32:09,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-23 23:32:09,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2024-11-23 23:32:09,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 276 states have (on average 1.2282608695652173) internal successors, (339), 280 states have internal predecessors, (339), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2024-11-23 23:32:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 695 transitions. [2024-11-23 23:32:09,840 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 695 transitions. Word has length 171 [2024-11-23 23:32:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:09,841 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 695 transitions. [2024-11-23 23:32:09,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-23 23:32:09,841 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 695 transitions. [2024-11-23 23:32:09,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-23 23:32:09,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:09,848 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:09,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:32:10,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:32:10,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:10,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:10,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1748451393, now seen corresponding path program 1 times [2024-11-23 23:32:10,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:10,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315058252] [2024-11-23 23:32:10,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:10,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-11-23 23:32:17,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315058252] [2024-11-23 23:32:17,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315058252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:32:17,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798213770] [2024-11-23 23:32:17,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:17,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:32:17,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:32:17,509 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:32:17,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:32:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:24,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 4714 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:32:24,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:32:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-23 23:32:25,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:32:25,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798213770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:25,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:32:25,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-23 23:32:25,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135609596] [2024-11-23 23:32:25,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:25,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:32:25,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:25,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:32:25,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:32:25,893 INFO L87 Difference]: Start difference. First operand 471 states and 695 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-23 23:32:28,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:28,991 INFO L93 Difference]: Finished difference Result 897 states and 1355 transitions. [2024-11-23 23:32:28,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:32:28,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 186 [2024-11-23 23:32:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:28,999 INFO L225 Difference]: With dead ends: 897 [2024-11-23 23:32:28,999 INFO L226 Difference]: Without dead ends: 477 [2024-11-23 23:32:29,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:32:29,004 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 657 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:29,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 2716 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-23 23:32:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-23 23:32:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 471. [2024-11-23 23:32:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 276 states have (on average 1.2282608695652173) internal successors, (339), 280 states have internal predecessors, (339), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2024-11-23 23:32:29,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 695 transitions. [2024-11-23 23:32:29,047 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 695 transitions. Word has length 186 [2024-11-23 23:32:29,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:29,048 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 695 transitions. [2024-11-23 23:32:29,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-23 23:32:29,049 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 695 transitions. [2024-11-23 23:32:29,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:32:29,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:29,052 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:29,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:32:29,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:32:29,253 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:29,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash 153228060, now seen corresponding path program 1 times [2024-11-23 23:32:29,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:29,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798097501] [2024-11-23 23:32:29,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:29,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:36,353 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:32:36,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:36,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798097501] [2024-11-23 23:32:36,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798097501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:32:36,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864436548] [2024-11-23 23:32:36,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:36,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:32:36,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:32:36,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:32:36,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:32:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:43,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 4781 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:32:43,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:32:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-23 23:32:44,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:32:44,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864436548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:44,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:32:44,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-23 23:32:44,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048398702] [2024-11-23 23:32:44,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:44,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:32:44,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:44,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:32:44,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:32:44,990 INFO L87 Difference]: Start difference. First operand 471 states and 695 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-23 23:32:51,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:51,031 INFO L93 Difference]: Finished difference Result 908 states and 1360 transitions. [2024-11-23 23:32:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:32:51,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 202 [2024-11-23 23:32:51,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:51,040 INFO L225 Difference]: With dead ends: 908 [2024-11-23 23:32:51,040 INFO L226 Difference]: Without dead ends: 488 [2024-11-23 23:32:51,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:32:51,047 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 714 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:51,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 3652 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 23:32:51,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-23 23:32:51,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 471. [2024-11-23 23:32:51,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 276 states have (on average 1.2282608695652173) internal successors, (339), 280 states have internal predecessors, (339), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2024-11-23 23:32:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 695 transitions. [2024-11-23 23:32:51,093 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 695 transitions. Word has length 202 [2024-11-23 23:32:51,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:51,094 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 695 transitions. [2024-11-23 23:32:51,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-23 23:32:51,095 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 695 transitions. [2024-11-23 23:32:51,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-23 23:32:51,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:51,100 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:51,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:32:51,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:32:51,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:51,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:51,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1773973269, now seen corresponding path program 2 times [2024-11-23 23:32:51,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:51,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770528811] [2024-11-23 23:32:51,302 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:32:51,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:57,373 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:32:57,373 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:32:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-23 23:32:59,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:59,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770528811] [2024-11-23 23:32:59,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770528811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:59,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:59,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:32:59,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540494792] [2024-11-23 23:32:59,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:59,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:32:59,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:59,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:32:59,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:32:59,254 INFO L87 Difference]: Start difference. First operand 471 states and 695 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-23 23:33:00,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:33:00,996 INFO L93 Difference]: Finished difference Result 860 states and 1292 transitions. [2024-11-23 23:33:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:33:00,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 217 [2024-11-23 23:33:00,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:33:01,003 INFO L225 Difference]: With dead ends: 860 [2024-11-23 23:33:01,003 INFO L226 Difference]: Without dead ends: 473 [2024-11-23 23:33:01,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:33:01,008 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 38 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:33:01,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 2919 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:33:01,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-23 23:33:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-11-23 23:33:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 277 states have (on average 1.227436823104693) internal successors, (340), 282 states have internal predecessors, (340), 164 states have call successors, (164), 28 states have call predecessors, (164), 30 states have return successors, (203), 163 states have call predecessors, (203), 162 states have call successors, (203) [2024-11-23 23:33:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 707 transitions. [2024-11-23 23:33:01,044 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 707 transitions. Word has length 217 [2024-11-23 23:33:01,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:33:01,046 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 707 transitions. [2024-11-23 23:33:01,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-23 23:33:01,046 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 707 transitions. [2024-11-23 23:33:01,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-23 23:33:01,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:33:01,052 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 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, 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] [2024-11-23 23:33:01,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:33:01,052 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:33:01,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:33:01,053 INFO L85 PathProgramCache]: Analyzing trace with hash 781777635, now seen corresponding path program 1 times [2024-11-23 23:33:01,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:33:01,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330674121] [2024-11-23 23:33:01,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:33:01,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:33:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:33:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-23 23:33:08,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:33:08,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330674121] [2024-11-23 23:33:08,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330674121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:33:08,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553418198] [2024-11-23 23:33:08,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:33:08,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:33:08,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:33:08,593 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:33:08,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:33:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:33:16,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 4958 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:33:16,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:33:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-23 23:33:17,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:33:17,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553418198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:33:17,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:33:17,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-23 23:33:17,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015088751] [2024-11-23 23:33:17,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:33:17,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:33:17,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:33:17,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:33:17,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:33:17,802 INFO L87 Difference]: Start difference. First operand 473 states and 707 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2024-11-23 23:33:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:33:23,471 INFO L93 Difference]: Finished difference Result 878 states and 1336 transitions. [2024-11-23 23:33:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:33:23,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 225 [2024-11-23 23:33:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:33:23,479 INFO L225 Difference]: With dead ends: 878 [2024-11-23 23:33:23,479 INFO L226 Difference]: Without dead ends: 489 [2024-11-23 23:33:23,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:33:23,484 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 679 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:33:23,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 3813 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-23 23:33:23,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-23 23:33:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 487. [2024-11-23 23:33:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 290 states have (on average 1.2344827586206897) internal successors, (358), 294 states have internal predecessors, (358), 165 states have call successors, (165), 28 states have call predecessors, (165), 30 states have return successors, (204), 165 states have call predecessors, (204), 163 states have call successors, (204) [2024-11-23 23:33:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 727 transitions. [2024-11-23 23:33:23,522 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 727 transitions. Word has length 225 [2024-11-23 23:33:23,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:33:23,523 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 727 transitions. [2024-11-23 23:33:23,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2024-11-23 23:33:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 727 transitions. [2024-11-23 23:33:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-23 23:33:23,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:33:23,527 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:33:23,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 23:33:23,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:33:23,728 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:33:23,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:33:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash 164865042, now seen corresponding path program 2 times [2024-11-23 23:33:23,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:33:23,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431847744] [2024-11-23 23:33:23,728 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:33:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:33:29,756 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:33:29,756 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:33:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-23 23:33:32,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:33:32,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431847744] [2024-11-23 23:33:32,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431847744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:33:32,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:33:32,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:33:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016896407] [2024-11-23 23:33:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:33:32,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:33:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:33:32,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:33:32,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:33:32,118 INFO L87 Difference]: Start difference. First operand 487 states and 727 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-23 23:33:32,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:33:32,465 INFO L93 Difference]: Finished difference Result 911 states and 1378 transitions. [2024-11-23 23:33:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:33:32,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 240 [2024-11-23 23:33:32,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:33:32,472 INFO L225 Difference]: With dead ends: 911 [2024-11-23 23:33:32,472 INFO L226 Difference]: Without dead ends: 505 [2024-11-23 23:33:32,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:33:32,476 INFO L435 NwaCegarLoop]: 634 mSDtfsCounter, 11 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3798 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:33:32,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3798 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:33:32,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-23 23:33:32,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 501. [2024-11-23 23:33:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 301 states have (on average 1.2358803986710964) internal successors, (372), 305 states have internal predecessors, (372), 167 states have call successors, (167), 28 states have call predecessors, (167), 31 states have return successors, (211), 168 states have call predecessors, (211), 165 states have call successors, (211) [2024-11-23 23:33:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 750 transitions. [2024-11-23 23:33:32,511 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 750 transitions. Word has length 240 [2024-11-23 23:33:32,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:33:32,512 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 750 transitions. [2024-11-23 23:33:32,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-23 23:33:32,512 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 750 transitions. [2024-11-23 23:33:32,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-23 23:33:32,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:33:32,517 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:33:32,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:33:32,517 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:33:32,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:33:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash 191930644, now seen corresponding path program 1 times [2024-11-23 23:33:32,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:33:32,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331493049] [2024-11-23 23:33:32,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:33:32,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:33:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:33:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-23 23:33:39,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:33:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331493049] [2024-11-23 23:33:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331493049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:33:39,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:33:39,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:33:39,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099375020] [2024-11-23 23:33:39,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:33:39,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:33:39,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:33:39,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:33:39,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:33:39,689 INFO L87 Difference]: Start difference. First operand 501 states and 750 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2024-11-23 23:33:41,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:33:41,998 INFO L93 Difference]: Finished difference Result 910 states and 1393 transitions. [2024-11-23 23:33:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:33:41,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 240 [2024-11-23 23:33:41,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:33:42,005 INFO L225 Difference]: With dead ends: 910 [2024-11-23 23:33:42,005 INFO L226 Difference]: Without dead ends: 507 [2024-11-23 23:33:42,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:33:42,009 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 55 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:33:42,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3450 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 23:33:42,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-23 23:33:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 501. [2024-11-23 23:33:42,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 301 states have (on average 1.2358803986710964) internal successors, (372), 305 states have internal predecessors, (372), 167 states have call successors, (167), 28 states have call predecessors, (167), 31 states have return successors, (211), 168 states have call predecessors, (211), 165 states have call successors, (211) [2024-11-23 23:33:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 750 transitions. [2024-11-23 23:33:42,049 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 750 transitions. Word has length 240 [2024-11-23 23:33:42,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:33:42,050 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 750 transitions. [2024-11-23 23:33:42,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2024-11-23 23:33:42,051 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 750 transitions. [2024-11-23 23:33:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-23 23:33:42,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:33:42,055 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:33:42,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:33:42,056 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:33:42,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:33:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1614278296, now seen corresponding path program 1 times [2024-11-23 23:33:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:33:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755869000] [2024-11-23 23:33:42,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:33:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:33:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:33:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-11-23 23:33:48,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:33:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755869000] [2024-11-23 23:33:48,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755869000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:33:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781217143] [2024-11-23 23:33:48,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:33:48,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:33:48,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:33:48,675 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:33:48,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:33:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:33:56,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 5276 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:33:56,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:33:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2024-11-23 23:33:58,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:33:58,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781217143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:33:58,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:33:58,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-23 23:33:58,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92577846] [2024-11-23 23:33:58,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:33:58,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:33:58,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:33:58,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:33:58,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:33:58,251 INFO L87 Difference]: Start difference. First operand 501 states and 750 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-23 23:34:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:34:03,016 INFO L93 Difference]: Finished difference Result 910 states and 1375 transitions. [2024-11-23 23:34:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:34:03,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 271 [2024-11-23 23:34:03,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:34:03,023 INFO L225 Difference]: With dead ends: 910 [2024-11-23 23:34:03,023 INFO L226 Difference]: Without dead ends: 513 [2024-11-23 23:34:03,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:34:03,030 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 674 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:34:03,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 3805 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:34:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-23 23:34:03,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2024-11-23 23:34:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 307 states have (on average 1.234527687296417) internal successors, (379), 311 states have internal predecessors, (379), 172 states have call successors, (172), 29 states have call predecessors, (172), 32 states have return successors, (216), 173 states have call predecessors, (216), 170 states have call successors, (216) [2024-11-23 23:34:03,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 767 transitions. [2024-11-23 23:34:03,067 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 767 transitions. Word has length 271 [2024-11-23 23:34:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:34:03,067 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 767 transitions. [2024-11-23 23:34:03,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-23 23:34:03,068 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 767 transitions. [2024-11-23 23:34:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-23 23:34:03,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:34:03,070 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:34:03,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:34:03,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:34:03,271 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:34:03,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:34:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash -18717460, now seen corresponding path program 1 times [2024-11-23 23:34:03,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:34:03,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118238165] [2024-11-23 23:34:03,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:34:03,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:34:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:34:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2024-11-23 23:34:10,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:34:10,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118238165] [2024-11-23 23:34:10,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118238165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:34:10,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:34:10,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:34:10,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196174352] [2024-11-23 23:34:10,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:34:10,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:34:10,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:34:10,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:34:10,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:34:10,363 INFO L87 Difference]: Start difference. First operand 513 states and 767 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-23 23:34:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:34:10,818 INFO L93 Difference]: Finished difference Result 946 states and 1429 transitions. [2024-11-23 23:34:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:34:10,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) Word has length 301 [2024-11-23 23:34:10,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:34:10,825 INFO L225 Difference]: With dead ends: 946 [2024-11-23 23:34:10,825 INFO L226 Difference]: Without dead ends: 534 [2024-11-23 23:34:10,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:34:10,829 INFO L435 NwaCegarLoop]: 638 mSDtfsCounter, 18 mSDsluCounter, 3815 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:34:10,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4453 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:34:10,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-23 23:34:10,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 519. [2024-11-23 23:34:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 310 states have (on average 1.232258064516129) internal successors, (382), 314 states have internal predecessors, (382), 175 states have call successors, (175), 29 states have call predecessors, (175), 32 states have return successors, (220), 176 states have call predecessors, (220), 173 states have call successors, (220) [2024-11-23 23:34:10,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 777 transitions. [2024-11-23 23:34:10,864 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 777 transitions. Word has length 301 [2024-11-23 23:34:10,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:34:10,865 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 777 transitions. [2024-11-23 23:34:10,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-23 23:34:10,866 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 777 transitions. [2024-11-23 23:34:10,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-23 23:34:10,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:34:10,868 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:34:10,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:34:10,869 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:34:10,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:34:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash -750684886, now seen corresponding path program 1 times [2024-11-23 23:34:10,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:34:10,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866450178] [2024-11-23 23:34:10,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:34:10,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:34:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:34:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-23 23:34:29,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:34:29,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866450178] [2024-11-23 23:34:29,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866450178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:34:29,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695388661] [2024-11-23 23:34:29,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:34:29,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:34:29,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:34:29,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:34:29,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:34:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:34:38,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 5527 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-23 23:34:38,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:34:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-23 23:34:40,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:34:40,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695388661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:34:40,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:34:40,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 19 [2024-11-23 23:34:40,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183078894] [2024-11-23 23:34:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:34:40,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:34:40,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:34:40,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:34:40,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:34:40,183 INFO L87 Difference]: Start difference. First operand 519 states and 777 transitions. Second operand has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-23 23:34:46,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:34:46,883 INFO L93 Difference]: Finished difference Result 1023 states and 1587 transitions. [2024-11-23 23:34:46,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:34:46,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 301 [2024-11-23 23:34:46,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:34:46,891 INFO L225 Difference]: With dead ends: 1023 [2024-11-23 23:34:46,891 INFO L226 Difference]: Without dead ends: 555 [2024-11-23 23:34:46,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 299 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:34:46,896 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 53 mSDsluCounter, 5237 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 5869 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:34:46,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 5869 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-23 23:34:46,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-23 23:34:46,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 534. [2024-11-23 23:34:46,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 324 states have (on average 1.2345679012345678) internal successors, (400), 327 states have internal predecessors, (400), 175 states have call successors, (175), 29 states have call predecessors, (175), 33 states have return successors, (239), 178 states have call predecessors, (239), 173 states have call successors, (239) [2024-11-23 23:34:46,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 814 transitions. [2024-11-23 23:34:46,936 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 814 transitions. Word has length 301 [2024-11-23 23:34:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:34:46,936 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 814 transitions. [2024-11-23 23:34:46,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-23 23:34:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 814 transitions. [2024-11-23 23:34:46,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-23 23:34:46,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:34:46,939 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:34:46,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 23:34:47,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:34:47,140 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:34:47,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:34:47,141 INFO L85 PathProgramCache]: Analyzing trace with hash -115660182, now seen corresponding path program 1 times [2024-11-23 23:34:47,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:34:47,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368293240] [2024-11-23 23:34:47,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:34:47,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:34:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:34:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2024-11-23 23:34:59,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:34:59,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368293240] [2024-11-23 23:34:59,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368293240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:34:59,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226869991] [2024-11-23 23:34:59,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:34:59,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:34:59,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:34:59,650 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:34:59,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:35:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:08,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 5517 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-23 23:35:08,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:09,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-11-23 23:35:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-23 23:35:16,124 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:16,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226869991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:16,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:16,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 21 [2024-11-23 23:35:16,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461030305] [2024-11-23 23:35:16,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:16,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:35:16,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:16,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:35:16,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:35:16,127 INFO L87 Difference]: Start difference. First operand 534 states and 814 transitions. Second operand has 18 states, 16 states have (on average 7.5625) internal successors, (121), 17 states have internal predecessors, (121), 8 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (33), 7 states have call predecessors, (33), 8 states have call successors, (33) [2024-11-23 23:35:20,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:35:24,216 WARN L539 Checker$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] [2024-11-23 23:35:28,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:35:32,442 WARN L539 Checker$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] [2024-11-23 23:35:36,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:35:40,719 WARN L539 Checker$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] [2024-11-23 23:35:44,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:35:49,257 WARN L539 Checker$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] [2024-11-23 23:35:53,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:35:57,382 WARN L539 Checker$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] [2024-11-23 23:36:01,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:36:06,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:36:10,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:36:22,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:36:40,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:36:48,081 WARN L539 Checker$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] [2024-11-23 23:36:56,857 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] [2024-11-23 23:36:58,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:36:58,489 INFO L93 Difference]: Finished difference Result 1515 states and 2397 transitions. [2024-11-23 23:36:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 23:36:58,491 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 7.5625) internal successors, (121), 17 states have internal predecessors, (121), 8 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (33), 7 states have call predecessors, (33), 8 states have call successors, (33) Word has length 301 [2024-11-23 23:36:58,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:36:58,504 INFO L225 Difference]: With dead ends: 1515 [2024-11-23 23:36:58,504 INFO L226 Difference]: Without dead ends: 1093 [2024-11-23 23:36:58,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 286 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=174, Invalid=1466, Unknown=0, NotChecked=0, Total=1640 [2024-11-23 23:36:58,510 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 691 mSDsluCounter, 6247 mSDsCounter, 0 mSdLazyCounter, 3694 mSolverCounterSat, 90 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 6864 SdHoareTripleChecker+Invalid, 3801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 3694 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:36:58,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 6864 Invalid, 3801 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [90 Valid, 3694 Invalid, 17 Unknown, 0 Unchecked, 97.1s Time] [2024-11-23 23:36:58,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-23 23:36:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1055. [2024-11-23 23:36:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 649 states have (on average 1.2419106317411401) internal successors, (806), 657 states have internal predecessors, (806), 338 states have call successors, (338), 53 states have call predecessors, (338), 66 states have return successors, (529), 346 states have call predecessors, (529), 335 states have call successors, (529) [2024-11-23 23:36:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1673 transitions. [2024-11-23 23:36:58,668 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1673 transitions. Word has length 301 [2024-11-23 23:36:58,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:36:58,669 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1673 transitions. [2024-11-23 23:36:58,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 7.5625) internal successors, (121), 17 states have internal predecessors, (121), 8 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (33), 7 states have call predecessors, (33), 8 states have call successors, (33) [2024-11-23 23:36:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1673 transitions. [2024-11-23 23:36:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-23 23:36:58,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:36:58,675 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-11-23 23:36:58,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 23:36:58,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 23:36:58,877 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:36:58,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:58,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1425101906, now seen corresponding path program 1 times [2024-11-23 23:36:58,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:58,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810369744] [2024-11-23 23:36:58,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:58,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2024-11-23 23:37:10,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:10,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810369744] [2024-11-23 23:37:10,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810369744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:10,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539528221] [2024-11-23 23:37:10,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:10,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:10,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:10,638 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:10,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:37:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:19,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 5527 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-23 23:37:19,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-23 23:37:24,481 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:37:24,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539528221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:24,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:37:24,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 20 [2024-11-23 23:37:24,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83160918] [2024-11-23 23:37:24,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:24,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:37:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:24,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:37:24,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:37:24,484 INFO L87 Difference]: Start difference. First operand 1055 states and 1673 transitions. Second operand has 17 states, 15 states have (on average 7.8) internal successors, (117), 16 states have internal predecessors, (117), 9 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) [2024-11-23 23:37:28,544 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] [2024-11-23 23:37:32,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:37:36,782 WARN L539 Checker$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] [2024-11-23 23:37:40,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:37:45,041 WARN L539 Checker$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] [2024-11-23 23:37:49,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:37:53,257 WARN L539 Checker$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] [2024-11-23 23:37:57,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:38:02,016 WARN L539 Checker$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] [2024-11-23 23:38:06,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:38:10,165 WARN L539 Checker$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] [2024-11-23 23:38:15,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:38:33,230 WARN L539 Checker$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] [2024-11-23 23:38:39,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:38:47,806 WARN L539 Checker$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] [2024-11-23 23:38:51,812 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] [2024-11-23 23:38:53,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:53,789 INFO L93 Difference]: Finished difference Result 2781 states and 4480 transitions. [2024-11-23 23:38:53,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 23:38:53,790 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 7.8) internal successors, (117), 16 states have internal predecessors, (117), 9 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) Word has length 301 [2024-11-23 23:38:53,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:53,811 INFO L225 Difference]: With dead ends: 2781 [2024-11-23 23:38:53,811 INFO L226 Difference]: Without dead ends: 1919 [2024-11-23 23:38:53,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:38:53,819 INFO L435 NwaCegarLoop]: 622 mSDtfsCounter, 539 mSDsluCounter, 6658 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 63 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 7280 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:53,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 7280 Invalid, 2852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2773 Invalid, 16 Unknown, 0 Unchecked, 86.9s Time] [2024-11-23 23:38:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2024-11-23 23:38:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1891. [2024-11-23 23:38:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1159 states have (on average 1.2459016393442623) internal successors, (1444), 1177 states have internal predecessors, (1444), 612 states have call successors, (612), 91 states have call predecessors, (612), 118 states have return successors, (980), 626 states have call predecessors, (980), 607 states have call successors, (980) [2024-11-23 23:38:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 3036 transitions. [2024-11-23 23:38:54,137 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 3036 transitions. Word has length 301 [2024-11-23 23:38:54,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:54,138 INFO L471 AbstractCegarLoop]: Abstraction has 1891 states and 3036 transitions. [2024-11-23 23:38:54,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 7.8) internal successors, (117), 16 states have internal predecessors, (117), 9 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) [2024-11-23 23:38:54,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 3036 transitions. [2024-11-23 23:38:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-23 23:38:54,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:54,142 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:54,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:38:54,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-23 23:38:54,343 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:54,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:54,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2032023527, now seen corresponding path program 1 times [2024-11-23 23:38:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:54,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183898540] [2024-11-23 23:38:54,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:39:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:39:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-23 23:39:02,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:39:02,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183898540] [2024-11-23 23:39:02,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183898540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:39:02,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066398433] [2024-11-23 23:39:02,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:02,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:39:02,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:39:02,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:39:02,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:39:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:39:12,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 5405 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 23:39:12,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:39:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-23 23:39:14,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:39:14,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066398433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:39:14,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:39:14,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2024-11-23 23:39:14,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319304329] [2024-11-23 23:39:14,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:39:14,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:39:14,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:39:14,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:39:14,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:39:14,004 INFO L87 Difference]: Start difference. First operand 1891 states and 3036 transitions. Second operand has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-23 23:39:20,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:39:20,606 INFO L93 Difference]: Finished difference Result 3635 states and 5852 transitions. [2024-11-23 23:39:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:39:20,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) Word has length 286 [2024-11-23 23:39:20,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:39:20,622 INFO L225 Difference]: With dead ends: 3635 [2024-11-23 23:39:20,622 INFO L226 Difference]: Without dead ends: 1895 [2024-11-23 23:39:20,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:39:20,635 INFO L435 NwaCegarLoop]: 541 mSDtfsCounter, 719 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 4191 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:39:20,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 4191 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-23 23:39:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2024-11-23 23:39:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1803. [2024-11-23 23:39:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1082 states have (on average 1.2393715341959335) internal successors, (1341), 1097 states have internal predecessors, (1341), 608 states have call successors, (608), 91 states have call predecessors, (608), 111 states have return successors, (884), 618 states have call predecessors, (884), 603 states have call successors, (884) [2024-11-23 23:39:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2833 transitions. [2024-11-23 23:39:20,830 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2833 transitions. Word has length 286 [2024-11-23 23:39:20,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:39:20,831 INFO L471 AbstractCegarLoop]: Abstraction has 1803 states and 2833 transitions. [2024-11-23 23:39:20,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-23 23:39:20,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2833 transitions. [2024-11-23 23:39:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-23 23:39:20,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:39:20,835 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:39:20,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 23:39:21,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 23:39:21,035 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:39:21,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:39:21,037 INFO L85 PathProgramCache]: Analyzing trace with hash 15351910, now seen corresponding path program 1 times [2024-11-23 23:39:21,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:39:21,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575305483] [2024-11-23 23:39:21,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:21,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:39:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:39:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2024-11-23 23:39:28,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:39:28,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575305483] [2024-11-23 23:39:28,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575305483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:39:28,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692430988] [2024-11-23 23:39:28,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:28,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:39:28,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:39:28,698 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:39:28,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:39:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:39:39,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 5527 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:39:39,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:39:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-23 23:39:39,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:39:39,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692430988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:39:39,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:39:39,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-23 23:39:39,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788765711] [2024-11-23 23:39:39,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:39:39,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:39:39,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:39:39,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:39:39,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:39:39,065 INFO L87 Difference]: Start difference. First operand 1803 states and 2833 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 23:39:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:39:39,285 INFO L93 Difference]: Finished difference Result 3555 states and 5920 transitions. [2024-11-23 23:39:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:39:39,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 301 [2024-11-23 23:39:39,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:39:39,302 INFO L225 Difference]: With dead ends: 3555 [2024-11-23 23:39:39,302 INFO L226 Difference]: Without dead ends: 1803 [2024-11-23 23:39:39,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:39:39,319 INFO L435 NwaCegarLoop]: 638 mSDtfsCounter, 0 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1904 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 [2024-11-23 23:39:39,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1904 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:39:39,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-23 23:39:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1803. [2024-11-23 23:39:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1082 states have (on average 1.2356746765249538) internal successors, (1337), 1097 states have internal predecessors, (1337), 608 states have call successors, (608), 91 states have call predecessors, (608), 111 states have return successors, (884), 618 states have call predecessors, (884), 603 states have call successors, (884) [2024-11-23 23:39:39,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2829 transitions. [2024-11-23 23:39:39,529 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2829 transitions. Word has length 301 [2024-11-23 23:39:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:39:39,529 INFO L471 AbstractCegarLoop]: Abstraction has 1803 states and 2829 transitions. [2024-11-23 23:39:39,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 23:39:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2829 transitions. [2024-11-23 23:39:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-23 23:39:39,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:39:39,533 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:39:39,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 23:39:39,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 23:39:39,734 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:39:39,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:39:39,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1368708394, now seen corresponding path program 1 times [2024-11-23 23:39:39,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:39:39,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30394247] [2024-11-23 23:39:39,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:39,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:39:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:39:53,569 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2024-11-23 23:39:53,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:39:53,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30394247] [2024-11-23 23:39:53,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30394247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:39:53,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329162406] [2024-11-23 23:39:53,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:53,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:39:53,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:39:53,574 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:39:53,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:40:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:03,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 5527 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:40:03,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:40:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-23 23:40:03,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:40:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329162406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:40:03,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:40:03,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 23:40:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758325179] [2024-11-23 23:40:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:40:03,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:40:03,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:40:03,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:40:03,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:40:03,917 INFO L87 Difference]: Start difference. First operand 1803 states and 2829 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:40:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:40:05,604 INFO L93 Difference]: Finished difference Result 3437 states and 5415 transitions. [2024-11-23 23:40:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:40:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) Word has length 301 [2024-11-23 23:40:05,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:40:05,626 INFO L225 Difference]: With dead ends: 3437 [2024-11-23 23:40:05,626 INFO L226 Difference]: Without dead ends: 1766 [2024-11-23 23:40:05,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:40:05,639 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 0 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:40:05,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2323 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:40:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-23 23:40:05,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1766. [2024-11-23 23:40:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1056 states have (on average 1.2329545454545454) internal successors, (1302), 1074 states have internal predecessors, (1302), 597 states have call successors, (597), 91 states have call predecessors, (597), 111 states have return successors, (865), 604 states have call predecessors, (865), 592 states have call successors, (865) [2024-11-23 23:40:05,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2764 transitions. [2024-11-23 23:40:05,861 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2764 transitions. Word has length 301 [2024-11-23 23:40:05,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:40:05,861 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2764 transitions. [2024-11-23 23:40:05,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:40:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2764 transitions. [2024-11-23 23:40:05,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-11-23 23:40:05,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:40:05,865 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:40:05,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:40:06,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 23:40:06,066 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:40:06,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:40:06,066 INFO L85 PathProgramCache]: Analyzing trace with hash 715689706, now seen corresponding path program 1 times [2024-11-23 23:40:06,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:40:06,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829942904] [2024-11-23 23:40:06,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:06,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:40:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:18,883 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-11-23 23:40:18,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:40:18,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829942904] [2024-11-23 23:40:18,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829942904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:40:18,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625532425] [2024-11-23 23:40:18,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:18,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:40:18,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:40:18,886 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:40:18,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 23:40:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:29,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 5568 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:40:29,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:40:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-23 23:40:29,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:40:29,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625532425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:40:29,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:40:29,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-23 23:40:29,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144287965] [2024-11-23 23:40:29,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:40:29,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:40:29,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:40:29,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:40:29,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:40:29,649 INFO L87 Difference]: Start difference. First operand 1766 states and 2764 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-23 23:40:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:40:29,981 INFO L93 Difference]: Finished difference Result 3541 states and 5714 transitions. [2024-11-23 23:40:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:40:29,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 312 [2024-11-23 23:40:29,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:40:30,000 INFO L225 Difference]: With dead ends: 3541 [2024-11-23 23:40:30,000 INFO L226 Difference]: Without dead ends: 1826 [2024-11-23 23:40:30,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:40:30,011 INFO L435 NwaCegarLoop]: 642 mSDtfsCounter, 2 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2546 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 [2024-11-23 23:40:30,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2546 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:40:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-23 23:40:30,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1814. [2024-11-23 23:40:30,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1104 states have (on average 1.2373188405797102) internal successors, (1366), 1122 states have internal predecessors, (1366), 597 states have call successors, (597), 91 states have call predecessors, (597), 111 states have return successors, (865), 604 states have call predecessors, (865), 592 states have call successors, (865) [2024-11-23 23:40:30,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2828 transitions. [2024-11-23 23:40:30,188 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2828 transitions. Word has length 312 [2024-11-23 23:40:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:40:30,190 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2828 transitions. [2024-11-23 23:40:30,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-23 23:40:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2828 transitions. [2024-11-23 23:40:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-23 23:40:30,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:40:30,193 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-23 23:40:30,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-23 23:40:30,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-23 23:40:30,393 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:40:30,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:40:30,394 INFO L85 PathProgramCache]: Analyzing trace with hash 86626902, now seen corresponding path program 1 times [2024-11-23 23:40:30,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:40:30,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851272051] [2024-11-23 23:40:30,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:30,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:40:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:45,027 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-23 23:40:45,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:40:45,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851272051] [2024-11-23 23:40:45,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851272051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:40:45,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175559384] [2024-11-23 23:40:45,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:45,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:40:45,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:40:45,030 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:40:45,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 23:40:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:55,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 5578 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-23 23:40:55,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:40:55,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-11-23 23:40:57,315 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-23 23:40:57,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:40:57,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175559384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:40:57,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:40:57,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2024-11-23 23:40:57,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749992194] [2024-11-23 23:40:57,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:40:57,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:40:57,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:40:57,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:40:57,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:40:57,317 INFO L87 Difference]: Start difference. First operand 1814 states and 2828 transitions. Second operand has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 5 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2024-11-23 23:40:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:40:59,970 INFO L93 Difference]: Finished difference Result 3701 states and 5916 transitions. [2024-11-23 23:40:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:40:59,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 5 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) Word has length 316 [2024-11-23 23:40:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:40:59,988 INFO L225 Difference]: With dead ends: 3701 [2024-11-23 23:40:59,988 INFO L226 Difference]: Without dead ends: 1938 [2024-11-23 23:41:00,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:41:00,001 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 28 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4094 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:41:00,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4094 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:41:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2024-11-23 23:41:00,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1846. [2024-11-23 23:41:00,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1136 states have (on average 1.2376760563380282) internal successors, (1406), 1154 states have internal predecessors, (1406), 597 states have call successors, (597), 91 states have call predecessors, (597), 111 states have return successors, (865), 604 states have call predecessors, (865), 592 states have call successors, (865) [2024-11-23 23:41:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2868 transitions. [2024-11-23 23:41:00,256 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2868 transitions. Word has length 316 [2024-11-23 23:41:00,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:41:00,257 INFO L471 AbstractCegarLoop]: Abstraction has 1846 states and 2868 transitions. [2024-11-23 23:41:00,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 5 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2024-11-23 23:41:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2868 transitions. [2024-11-23 23:41:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-23 23:41:00,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:41:00,260 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-23 23:41:00,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 23:41:00,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:41:00,461 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:41:00,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:41:00,461 INFO L85 PathProgramCache]: Analyzing trace with hash 52130398, now seen corresponding path program 1 times [2024-11-23 23:41:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:41:00,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697081245] [2024-11-23 23:41:00,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:41:00,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:41:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:41:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 6 proven. 40 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-11-23 23:41:12,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:41:12,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697081245] [2024-11-23 23:41:12,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697081245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:41:12,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969814660] [2024-11-23 23:41:12,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:41:12,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:41:12,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:41:12,749 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:41:12,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3be423-6330-4db4-8617-18f83d18e86b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 23:41:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:41:23,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 5562 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-11-23 23:41:23,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:41:23,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:41:23,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:41:23,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2024-11-23 23:41:24,386 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_int#1)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_int#1| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|))) is different from true [2024-11-23 23:41:24,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:41:26,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:41:30,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-23 23:44:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 308 proven. 0 refuted. 12 times theorem prover too weak. 225 trivial. 2 not checked. [2024-11-23 23:44:10,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:44:21,411 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_56814 (Array Int Int))) (or (= (mod (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_ensure_priority_queue_has_allocated_members_~queue#1.base| v_ArrVal_56814) |c_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base|) (+ 56 |c_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset|)) 18446744073709551616) 0) (not (= (store (select |c_#memory_int#1| |c_ULTIMATE.start_ensure_priority_queue_has_allocated_members_~queue#1.base|) |c_ULTIMATE.start_ensure_priority_queue_has_allocated_members_~queue#1.offset| (select v_ArrVal_56814 |c_ULTIMATE.start_ensure_priority_queue_has_allocated_members_~queue#1.offset|)) v_ArrVal_56814)))) is different from false [2024-11-23 23:44:22,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969814660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:44:22,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:44:22,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 21] total 24 [2024-11-23 23:44:22,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843564703] [2024-11-23 23:44:22,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:44:22,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 23:44:22,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:22,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 23:44:22,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=937, Unknown=17, NotChecked=126, Total=1190 [2024-11-23 23:44:22,409 INFO L87 Difference]: Start difference. First operand 1846 states and 2868 transitions. Second operand has 24 states, 21 states have (on average 10.380952380952381) internal successors, (218), 22 states have internal predecessors, (218), 11 states have call successors, (62), 5 states have call predecessors, (62), 7 states have return successors, (61), 10 states have call predecessors, (61), 11 states have call successors, (61) [2024-11-23 23:44:35,712 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] [2024-11-23 23:44:39,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:44:52,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:44:56,196 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]