./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_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_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/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_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/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_3c8dd154-b264-4e6b-84ee-88e996d13e64/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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:59:43,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:59:43,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 00:59:43,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:59:43,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:59:43,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:59:43,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:59:43,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:59:43,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:59:43,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:59:43,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:59:43,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:59:43,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:59:43,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:59:43,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:59:43,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:59:43,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:59:43,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:59:43,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:59:43,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:59:43,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:59:43,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:59:43,455 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:59:43,455 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:59:43,455 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:59:43,456 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:59:43,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:59:43,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:59:43,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:59:43,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:59:43,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:59:43,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:59:43,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:59:43,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:59:43,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:59:43,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:59:43,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:59:43,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:59:43,459 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_3c8dd154-b264-4e6b-84ee-88e996d13e64/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 -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2024-11-24 00:59:43,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:59:43,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:59:43,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:59:43,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:59:43,859 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:59:43,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2024-11-24 00:59:47,061 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/data/775d89c69/f9a84d1b43d240668c1c76ae4d76bfe5/FLAGd5265d174 [2024-11-24 00:59:47,817 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:59:47,818 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2024-11-24 00:59:47,879 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/data/775d89c69/f9a84d1b43d240668c1c76ae4d76bfe5/FLAGd5265d174 [2024-11-24 00:59:47,913 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/data/775d89c69/f9a84d1b43d240668c1c76ae4d76bfe5 [2024-11-24 00:59:47,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:59:47,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:59:47,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:59:47,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:59:47,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:59:47,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:59:47" (1/1) ... [2024-11-24 00:59:47,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c4c428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:47, skipping insertion in model container [2024-11-24 00:59:47,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:59:47" (1/1) ... [2024-11-24 00:59:48,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:59:48,475 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_3c8dd154-b264-4e6b-84ee-88e996d13e64/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2024-11-24 00:59:48,486 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_3c8dd154-b264-4e6b-84ee-88e996d13e64/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2024-11-24 00:59:49,908 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,909 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,910 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,912 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,913 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,930 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,931 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,934 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,934 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,937 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,938 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,939 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:49,940 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,695 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,696 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,703 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,717 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,799 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:59:50,851 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:59:50,874 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_3c8dd154-b264-4e6b-84ee-88e996d13e64/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2024-11-24 00:59:50,878 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_3c8dd154-b264-4e6b-84ee-88e996d13e64/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2024-11-24 00:59:50,981 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,982 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,983 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,983 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,984 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:50,999 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,001 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,003 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,007 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,009 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,010 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,014 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,015 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,173 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,174 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,175 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,181 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-24 00:59:51,232 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:59:51,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:59:51,481 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:59:51,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51 WrapperNode [2024-11-24 00:59:51,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:59:51,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:59:51,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:59:51,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:59:51,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,684 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 812 [2024-11-24 00:59:51,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:59:51,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:59:51,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:59:51,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:59:51,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,842 INFO L175 MemorySlicer]: Split 328 memory accesses to 7 slices as follows [238, 2, 6, 6, 2, 9, 65]. 73 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 1, 0, 5, 10]. The 242 writes are split as follows [232, 0, 2, 1, 1, 1, 5]. [2024-11-24 00:59:51,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,879 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:59:51,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:59:51,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:59:51,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:59:51,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (1/1) ... [2024-11-24 00:59:51,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:59:51,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:59:51,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:59:51,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:59:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:59:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-24 00:59:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-24 00:59:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-24 00:59:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-24 00:59:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-24 00:59:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-24 00:59:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-24 00:59:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-24 00:59:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 00:59:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 00:59:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 00:59:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 00:59:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:59:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-24 00:59:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 00:59:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:59:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:59:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:59:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 00:59:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 00:59:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-24 00:59:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-24 00:59:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:59:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:59:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-24 00:59:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-24 00:59:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-24 00:59:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-24 00:59:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-24 00:59:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-24 00:59:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 00:59:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 00:59:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 00:59:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 00:59:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 00:59:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 00:59:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 00:59:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-24 00:59:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-24 00:59:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-24 00:59:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-24 00:59:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:59:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:59:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-24 00:59:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-24 00:59:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-24 00:59:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-24 00:59:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:59:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-24 00:59:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-24 00:59:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:59:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:59:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 00:59:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 00:59:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-24 00:59:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-24 00:59:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-24 00:59:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-24 00:59:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-24 00:59:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-24 00:59:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2024-11-24 00:59:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2024-11-24 00:59:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:59:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-24 00:59:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:59:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:59:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:59:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:59:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:59:52,523 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:59:52,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:59:59,335 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-24 00:59:59,335 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:59:59,365 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:59:59,365 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:59:59,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:59:59 BoogieIcfgContainer [2024-11-24 00:59:59,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:59:59,367 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:59:59,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:59:59,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:59:59,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:59:47" (1/3) ... [2024-11-24 00:59:59,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e75ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:59:59, skipping insertion in model container [2024-11-24 00:59:59,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:51" (2/3) ... [2024-11-24 00:59:59,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e75ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:59:59, skipping insertion in model container [2024-11-24 00:59:59,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:59:59" (3/3) ... [2024-11-24 00:59:59,379 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2024-11-24 00:59:59,399 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:59:59,402 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_ensure_capacity_harness.i that has 22 procedures, 241 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:59:59,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:59:59,496 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;@5d7ec6fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:59:59,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:59:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-24 00:59:59,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 00:59:59,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:59,516 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:59:59,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:59,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1440839759, now seen corresponding path program 1 times [2024-11-24 00:59:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:59,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765931931] [2024-11-24 00:59:59,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:59,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-24 01:00:08,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:08,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765931931] [2024-11-24 01:00:08,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765931931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:08,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060662667] [2024-11-24 01:00:08,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:08,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:08,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:08,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:08,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:00:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:16,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:00:16,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:00:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-24 01:00:16,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:00:16,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060662667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:16,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:00:16,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:00:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116116616] [2024-11-24 01:00:16,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:16,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:00:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:16,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:00:16,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:00:16,244 INFO L87 Difference]: Start difference. First operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:00:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:16,332 INFO L93 Difference]: Finished difference Result 475 states and 678 transitions. [2024-11-24 01:00:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:00:16,335 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-24 01:00:16,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:16,346 INFO L225 Difference]: With dead ends: 475 [2024-11-24 01:00:16,346 INFO L226 Difference]: Without dead ends: 230 [2024-11-24 01:00:16,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:00:16,356 INFO L435 NwaCegarLoop]: 319 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, 319 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 [2024-11-24 01:00:16,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:00:16,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-24 01:00:16,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-11-24 01:00:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 136 states have (on average 1.1838235294117647) internal successors, (161), 138 states have internal predecessors, (161), 73 states have call successors, (73), 21 states have call predecessors, (73), 20 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 01:00:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 304 transitions. [2024-11-24 01:00:16,432 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 304 transitions. Word has length 87 [2024-11-24 01:00:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:16,433 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 304 transitions. [2024-11-24 01:00:16,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:00:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 304 transitions. [2024-11-24 01:00:16,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 01:00:16,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:16,440 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:16,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:00:16,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:00:16,641 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:16,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:16,642 INFO L85 PathProgramCache]: Analyzing trace with hash 319336823, now seen corresponding path program 1 times [2024-11-24 01:00:16,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:16,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079359989] [2024-11-24 01:00:16,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:16,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:00:23,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:23,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079359989] [2024-11-24 01:00:23,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079359989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:23,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355876844] [2024-11-24 01:00:23,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:23,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:23,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:23,579 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:23,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:00:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:30,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:00:30,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:00:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 01:00:31,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:00:31,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355876844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:31,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:00:31,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-24 01:00:31,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696382203] [2024-11-24 01:00:31,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:31,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:00:31,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:31,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:00:31,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:00:31,011 INFO L87 Difference]: Start difference. First operand 230 states and 304 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:00:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:32,884 INFO L93 Difference]: Finished difference Result 436 states and 585 transitions. [2024-11-24 01:00:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:00:32,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 87 [2024-11-24 01:00:32,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:32,889 INFO L225 Difference]: With dead ends: 436 [2024-11-24 01:00:32,889 INFO L226 Difference]: Without dead ends: 232 [2024-11-24 01:00:32,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:00:32,892 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 314 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:32,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 990 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:00:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-24 01:00:32,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-11-24 01:00:32,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 140 states have internal predecessors, (162), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2024-11-24 01:00:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 315 transitions. [2024-11-24 01:00:32,931 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 315 transitions. Word has length 87 [2024-11-24 01:00:32,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:32,931 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 315 transitions. [2024-11-24 01:00:32,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:00:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 315 transitions. [2024-11-24 01:00:32,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 01:00:32,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:32,938 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:32,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:00:33,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:33,139 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:33,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1862510502, now seen corresponding path program 1 times [2024-11-24 01:00:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:33,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789836915] [2024-11-24 01:00:33,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:33,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-24 01:00:39,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:39,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789836915] [2024-11-24 01:00:39,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789836915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:39,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379049355] [2024-11-24 01:00:39,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:39,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:39,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:39,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:39,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:00:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:46,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 4387 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:00:46,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:00:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 01:00:46,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:00:46,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379049355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:46,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:00:46,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-24 01:00:46,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524552509] [2024-11-24 01:00:46,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:46,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:00:46,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:46,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:00:46,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:00:46,681 INFO L87 Difference]: Start difference. First operand 232 states and 315 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:00:46,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:46,832 INFO L93 Difference]: Finished difference Result 440 states and 610 transitions. [2024-11-24 01:00:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:00:46,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-11-24 01:00:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:46,837 INFO L225 Difference]: With dead ends: 440 [2024-11-24 01:00:46,837 INFO L226 Difference]: Without dead ends: 234 [2024-11-24 01:00:46,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:00:46,840 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 0 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:46,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 899 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:00:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-24 01:00:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-24 01:00:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2024-11-24 01:00:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 317 transitions. [2024-11-24 01:00:46,886 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 317 transitions. Word has length 102 [2024-11-24 01:00:46,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:46,887 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 317 transitions. [2024-11-24 01:00:46,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:00:46,887 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 317 transitions. [2024-11-24 01:00:46,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 01:00:46,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:46,890 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:46,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:00:47,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:47,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:47,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:47,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1301810724, now seen corresponding path program 1 times [2024-11-24 01:00:47,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:47,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689654454] [2024-11-24 01:00:47,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:47,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:00:54,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:54,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689654454] [2024-11-24 01:00:54,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689654454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:54,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399187539] [2024-11-24 01:00:54,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:54,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:54,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:54,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:54,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:01:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:00,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 4392 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:01:00,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:01:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 01:01:01,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:01:01,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399187539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:01,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:01:01,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-24 01:01:01,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850822661] [2024-11-24 01:01:01,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:01,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:01:01,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:01,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:01:01,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:01:01,917 INFO L87 Difference]: Start difference. First operand 234 states and 317 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-24 01:01:05,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:05,069 INFO L93 Difference]: Finished difference Result 432 states and 583 transitions. [2024-11-24 01:01:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:01:05,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 102 [2024-11-24 01:01:05,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:05,073 INFO L225 Difference]: With dead ends: 432 [2024-11-24 01:01:05,073 INFO L226 Difference]: Without dead ends: 234 [2024-11-24 01:01:05,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:01:05,075 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 362 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:05,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1289 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:01:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-24 01:01:05,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-24 01:01:05,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2024-11-24 01:01:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 311 transitions. [2024-11-24 01:01:05,102 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 311 transitions. Word has length 102 [2024-11-24 01:01:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:05,103 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 311 transitions. [2024-11-24 01:01:05,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-24 01:01:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 311 transitions. [2024-11-24 01:01:05,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:01:05,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:05,106 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2024-11-24 01:01:05,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:01:05,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:01:05,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:05,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:05,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1032976103, now seen corresponding path program 2 times [2024-11-24 01:01:05,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:05,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84554576] [2024-11-24 01:01:05,308 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:01:05,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:10,344 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:01:10,344 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:01:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-24 01:01:11,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:11,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84554576] [2024-11-24 01:01:11,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84554576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:11,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:11,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:01:11,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681090681] [2024-11-24 01:01:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:11,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:01:11,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:11,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:01:11,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:11,318 INFO L87 Difference]: Start difference. First operand 234 states and 311 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:01:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:11,520 INFO L93 Difference]: Finished difference Result 409 states and 535 transitions. [2024-11-24 01:01:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:01:11,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-11-24 01:01:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:11,525 INFO L225 Difference]: With dead ends: 409 [2024-11-24 01:01:11,525 INFO L226 Difference]: Without dead ends: 239 [2024-11-24 01:01:11,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:11,529 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:11,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1198 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:01:11,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-24 01:01:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2024-11-24 01:01:11,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 146 states have internal predecessors, (168), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2024-11-24 01:01:11,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 316 transitions. [2024-11-24 01:01:11,564 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 316 transitions. Word has length 117 [2024-11-24 01:01:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:11,565 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 316 transitions. [2024-11-24 01:01:11,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:01:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 316 transitions. [2024-11-24 01:01:11,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 01:01:11,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:11,568 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2024-11-24 01:01:11,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:01:11,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:11,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1200499914, now seen corresponding path program 1 times [2024-11-24 01:01:11,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:11,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609841728] [2024-11-24 01:01:11,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:11,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-24 01:01:18,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:18,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609841728] [2024-11-24 01:01:18,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609841728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:01:18,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782241585] [2024-11-24 01:01:18,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:18,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:01:18,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:18,802 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:01:18,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:01:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:25,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 4523 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:01:25,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:01:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:01:26,959 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:01:26,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782241585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:26,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:01:26,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-24 01:01:26,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720873155] [2024-11-24 01:01:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:26,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:01:26,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:26,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:01:26,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:01:26,962 INFO L87 Difference]: Start difference. First operand 239 states and 316 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:01:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:30,918 INFO L93 Difference]: Finished difference Result 439 states and 576 transitions. [2024-11-24 01:01:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:01:30,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 123 [2024-11-24 01:01:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:30,922 INFO L225 Difference]: With dead ends: 439 [2024-11-24 01:01:30,922 INFO L226 Difference]: Without dead ends: 237 [2024-11-24 01:01:30,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:01:30,925 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 372 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:30,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1507 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 01:01:30,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-24 01:01:30,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-11-24 01:01:30,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 144 states have internal predecessors, (166), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2024-11-24 01:01:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 310 transitions. [2024-11-24 01:01:30,947 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 310 transitions. Word has length 123 [2024-11-24 01:01:30,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:30,948 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 310 transitions. [2024-11-24 01:01:30,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:01:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 310 transitions. [2024-11-24 01:01:30,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 01:01:30,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:30,951 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:30,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:01:31,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:01:31,152 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:31,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1160304378, now seen corresponding path program 1 times [2024-11-24 01:01:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:31,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345850180] [2024-11-24 01:01:31,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:01:45,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220553120] [2024-11-24 01:01:45,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:45,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:01:45,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:45,402 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:01:45,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8dd154-b264-4e6b-84ee-88e996d13e64/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process