./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/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 74836a87661fce5875ab1ae94a73cbe51ee04e76d05fc1828decf2341972d635 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:38:45,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:38:45,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 18:38:45,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:38:45,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:38:45,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:38:45,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:38:45,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:38:45,640 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:38:45,640 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:38:45,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:38:45,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:38:45,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:38:45,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:38:45,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:38:45,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:38:45,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:38:45,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:38:45,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:38:45,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:38:45,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:38:45,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:38:45,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:38:45,644 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:38:45,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:38:45,644 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:38:45,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:38:45,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:38:45,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:38:45,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:45,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:38:45,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:38:45,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:38:45,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:38:45,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:45,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:38:45,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:38:45,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:38:45,646 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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/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 -> 74836a87661fce5875ab1ae94a73cbe51ee04e76d05fc1828decf2341972d635 [2024-11-23 18:38:45,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:38:45,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:38:45,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:38:45,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:38:45,997 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:38:45,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2024-11-23 18:38:49,248 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/data/880b722ca/1634f89f61d84953b939b5863153d90c/FLAGcaeefb44b [2024-11-23 18:38:50,114 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:38:50,118 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2024-11-23 18:38:50,187 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/data/880b722ca/1634f89f61d84953b939b5863153d90c/FLAGcaeefb44b [2024-11-23 18:38:50,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/data/880b722ca/1634f89f61d84953b939b5863153d90c [2024-11-23 18:38:50,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:38:50,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:38:50,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:38:50,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:38:50,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:38:50,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:50" (1/1) ... [2024-11-23 18:38:50,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4c900d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:50, skipping insertion in model container [2024-11-23 18:38:50,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:50" (1/1) ... [2024-11-23 18:38:50,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:38:50,677 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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2024-11-23 18:38:50,684 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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2024-11-23 18:38:51,892 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,892 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,893 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,899 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,900 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,919 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,920 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,922 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,923 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,925 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,926 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,927 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:51,927 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,132 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,132 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,163 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,164 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,173 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,176 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,200 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,201 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,201 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,202 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,202 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,203 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,205 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,251 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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[229089,229102] [2024-11-23 18:38:53,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:38:53,299 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:38:53,316 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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2024-11-23 18:38:53,320 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_5c75b38f-06c6-41bc-a0a1-84703489ab8f/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2024-11-23 18:38:53,430 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,435 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,435 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,436 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,437 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,449 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,450 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,451 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,451 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,452 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,453 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,453 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,454 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7576-7587] [2024-11-23 18:38:53,704 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,704 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,714 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,715 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,719 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,720 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,736 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,738 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,739 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,739 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,741 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,742 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,742 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:38:53,814 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[229089,229102] [2024-11-23 18:38:53,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:38:54,120 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:38:54,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54 WrapperNode [2024-11-23 18:38:54,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:38:54,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:38:54,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:38:54,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:38:54,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,418 INFO L138 Inliner]: procedures = 764, calls = 2484, calls flagged for inlining = 68, calls inlined = 21, statements flattened = 1370 [2024-11-23 18:38:54,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:38:54,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:38:54,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:38:54,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:38:54,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,470 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-23 18:38:54,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,578 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:38:54,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:38:54,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:38:54,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:38:54,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:54,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:38:54,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:38:54,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:38:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2024-11-23 18:38:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2024-11-23 18:38:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-23 18:38:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2024-11-23 18:38:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2024-11-23 18:38:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2024-11-23 18:38:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2024-11-23 18:38:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:38:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-23 18:38:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-23 18:38:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-23 18:38:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-23 18:38:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-23 18:38:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-23 18:38:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2024-11-23 18:38:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2024-11-23 18:38:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 18:38:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-23 18:38:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-23 18:38:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 18:38:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 18:38:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-23 18:38:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_create [2024-11-23 18:38:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_create [2024-11-23 18:38:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-23 18:38:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-23 18:38:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 18:38:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-23 18:38:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-23 18:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-23 18:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2024-11-23 18:38:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2024-11-23 18:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2024-11-23 18:38:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2024-11-23 18:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2024-11-23 18:38:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2024-11-23 18:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:38:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-23 18:38:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-23 18:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-23 18:38:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-23 18:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-23 18:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2024-11-23 18:38:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2024-11-23 18:38:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-23 18:38:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-23 18:38:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:38:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:38:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:38:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-23 18:38:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-23 18:38:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-23 18:38:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-23 18:38:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-23 18:38:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-23 18:38:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-23 18:38:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-23 18:38:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-23 18:38:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-23 18:38:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-23 18:38:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-23 18:38:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-23 18:38:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-23 18:38:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 18:38:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2024-11-23 18:38:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2024-11-23 18:38:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2024-11-23 18:38:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2024-11-23 18:38:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2024-11-23 18:38:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2024-11-23 18:38:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-23 18:38:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-23 18:38:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 18:38:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-23 18:38:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-23 18:38:55,353 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:38:55,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:38:55,927 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-23 18:38:55,949 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume false; [2024-11-23 18:38:55,950 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !false; [2024-11-23 18:38:55,983 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-23 18:38:56,022 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2024-11-23 18:38:56,022 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2024-11-23 18:38:56,619 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-23 18:38:56,626 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-23 18:38:56,881 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume false; [2024-11-23 18:38:56,881 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !false; [2024-11-23 18:38:56,881 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !false; [2024-11-23 18:38:56,881 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume false; [2024-11-23 18:39:03,138 INFO L? ?]: Removed 393 outVars from TransFormulas that were not future-live. [2024-11-23 18:39:03,139 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:39:03,158 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:39:03,158 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-23 18:39:03,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:03 BoogieIcfgContainer [2024-11-23 18:39:03,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:39:03,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:39:03,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:39:03,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:39:03,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:38:50" (1/3) ... [2024-11-23 18:39:03,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a547ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:39:03, skipping insertion in model container [2024-11-23 18:39:03,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (2/3) ... [2024-11-23 18:39:03,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a547ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:39:03, skipping insertion in model container [2024-11-23 18:39:03,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:03" (3/3) ... [2024-11-23 18:39:03,170 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2024-11-23 18:39:03,187 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:39:03,189 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_create_harness.i that has 31 procedures, 400 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-23 18:39:03,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:39:03,280 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;@10451d7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:39:03,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:39:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 286 states have (on average 1.3041958041958042) internal successors, (373), 283 states have internal predecessors, (373), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-23 18:39:03,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 18:39:03,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:03,307 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:03,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:03,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1395973969, now seen corresponding path program 1 times [2024-11-23 18:39:03,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:03,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878473008] [2024-11-23 18:39:03,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:03,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:11,872 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-23 18:39:11,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:11,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878473008] [2024-11-23 18:39:11,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878473008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:39:11,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049365791] [2024-11-23 18:39:11,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:11,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:39:11,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:39:11,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:39:11,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:39:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:20,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 4407 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:39:20,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:39:20,422 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-23 18:39:20,423 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:39:20,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049365791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:20,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:39:20,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:39:20,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714429534] [2024-11-23 18:39:20,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:20,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:39:20,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:20,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:39:20,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:39:20,459 INFO L87 Difference]: Start difference. First operand has 400 states, 286 states have (on average 1.3041958041958042) internal successors, (373), 283 states have internal predecessors, (373), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 18:39:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:20,559 INFO L93 Difference]: Finished difference Result 794 states and 1142 transitions. [2024-11-23 18:39:20,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:39:20,564 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-11-23 18:39:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:20,575 INFO L225 Difference]: With dead ends: 794 [2024-11-23 18:39:20,575 INFO L226 Difference]: Without dead ends: 392 [2024-11-23 18:39:20,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:39:20,586 INFO L435 NwaCegarLoop]: 533 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, 533 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:20,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:20,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-23 18:39:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-23 18:39:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 275 states have (on average 1.2872727272727273) internal successors, (354), 277 states have internal predecessors, (354), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-23 18:39:20,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 524 transitions. [2024-11-23 18:39:20,702 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 524 transitions. Word has length 124 [2024-11-23 18:39:20,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:20,704 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 524 transitions. [2024-11-23 18:39:20,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 18:39:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 524 transitions. [2024-11-23 18:39:20,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 18:39:20,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:20,711 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:20,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:39:20,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:39:20,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:20,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash -2034095755, now seen corresponding path program 1 times [2024-11-23 18:39:20,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:20,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224668952] [2024-11-23 18:39:20,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:20,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-23 18:39:28,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224668952] [2024-11-23 18:39:28,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224668952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:28,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:28,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:39:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606577917] [2024-11-23 18:39:28,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:28,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:39:28,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:28,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:39:28,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:39:28,470 INFO L87 Difference]: Start difference. First operand 392 states and 524 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 18:39:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:28,732 INFO L93 Difference]: Finished difference Result 780 states and 1047 transitions. [2024-11-23 18:39:28,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:39:28,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-11-23 18:39:28,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:28,743 INFO L225 Difference]: With dead ends: 780 [2024-11-23 18:39:28,745 INFO L226 Difference]: Without dead ends: 397 [2024-11-23 18:39:28,747 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 [2024-11-23 18:39:28,748 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:28,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2080 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:39:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-23 18:39:28,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-23 18:39:28,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 279 states have (on average 1.2831541218637992) internal successors, (358), 281 states have internal predecessors, (358), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2024-11-23 18:39:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 532 transitions. [2024-11-23 18:39:28,801 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 532 transitions. Word has length 124 [2024-11-23 18:39:28,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:28,801 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 532 transitions. [2024-11-23 18:39:28,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 18:39:28,802 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 532 transitions. [2024-11-23 18:39:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 18:39:28,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:28,805 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:28,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:39:28,805 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:28,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:28,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1564860968, now seen corresponding path program 1 times [2024-11-23 18:39:28,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:28,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30220813] [2024-11-23 18:39:28,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:28,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-23 18:39:36,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:36,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30220813] [2024-11-23 18:39:36,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30220813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:36,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:39:36,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607698324] [2024-11-23 18:39:36,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:36,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:39:36,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:36,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:39:36,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:39:36,130 INFO L87 Difference]: Start difference. First operand 397 states and 532 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-23 18:39:36,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:36,403 INFO L93 Difference]: Finished difference Result 780 states and 1045 transitions. [2024-11-23 18:39:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:39:36,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 130 [2024-11-23 18:39:36,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:36,415 INFO L225 Difference]: With dead ends: 780 [2024-11-23 18:39:36,416 INFO L226 Difference]: Without dead ends: 397 [2024-11-23 18:39:36,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:39:36,420 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 23 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:36,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1505 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:39:36,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-23 18:39:36,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-23 18:39:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 279 states have (on average 1.2795698924731183) internal successors, (357), 281 states have internal predecessors, (357), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2024-11-23 18:39:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 531 transitions. [2024-11-23 18:39:36,463 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 531 transitions. Word has length 130 [2024-11-23 18:39:36,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:36,464 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 531 transitions. [2024-11-23 18:39:36,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-23 18:39:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 531 transitions. [2024-11-23 18:39:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 18:39:36,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:36,466 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:36,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:39:36,471 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:36,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1147464362, now seen corresponding path program 1 times [2024-11-23 18:39:36,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:36,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941340396] [2024-11-23 18:39:36,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:36,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-23 18:39:46,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:46,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941340396] [2024-11-23 18:39:46,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941340396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:46,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:46,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:39:46,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389744830] [2024-11-23 18:39:46,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:46,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:39:46,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:46,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:39:46,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:39:46,097 INFO L87 Difference]: Start difference. First operand 397 states and 531 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-23 18:39:50,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:39:54,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:39:58,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:40:03,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:40:07,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:07,440 INFO L93 Difference]: Finished difference Result 776 states and 1037 transitions. [2024-11-23 18:40:07,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:40:07,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 130 [2024-11-23 18:40:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:07,450 INFO L225 Difference]: With dead ends: 776 [2024-11-23 18:40:07,450 INFO L226 Difference]: Without dead ends: 400 [2024-11-23 18:40:07,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:40:07,453 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 5 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:07,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3420 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 20.8s Time] [2024-11-23 18:40:07,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-23 18:40:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-23 18:40:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 281 states have (on average 1.2775800711743772) internal successors, (359), 284 states have internal predecessors, (359), 86 states have call successors, (86), 30 states have call predecessors, (86), 32 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-23 18:40:07,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 534 transitions. [2024-11-23 18:40:07,482 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 534 transitions. Word has length 130 [2024-11-23 18:40:07,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:07,483 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 534 transitions. [2024-11-23 18:40:07,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-23 18:40:07,483 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 534 transitions. [2024-11-23 18:40:07,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 18:40:07,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:07,487 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:07,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:40:07,488 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:07,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:07,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1708166692, now seen corresponding path program 1 times [2024-11-23 18:40:07,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:07,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299459337] [2024-11-23 18:40:07,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:07,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 18:40:15,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299459337] [2024-11-23 18:40:15,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299459337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:40:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650404501] [2024-11-23 18:40:15,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:15,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:15,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:15,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:40:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:40:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:21,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 4440 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 18:40:21,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:40:27,338 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0))) (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0)))) is different from true [2024-11-23 18:40:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 18:40:36,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:40:36,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650404501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:36,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:40:36,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-23 18:40:36,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648136025] [2024-11-23 18:40:36,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:36,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:40:36,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:36,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:40:36,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-11-23 18:40:36,228 INFO L87 Difference]: Start difference. First operand 400 states and 534 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-23 18:40:40,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:40:44,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:49,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:53,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:57,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:41:03,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:08,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:08,195 INFO L93 Difference]: Finished difference Result 785 states and 1049 transitions. [2024-11-23 18:41:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:41:08,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 136 [2024-11-23 18:41:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:08,208 INFO L225 Difference]: With dead ends: 785 [2024-11-23 18:41:08,208 INFO L226 Difference]: Without dead ends: 404 [2024-11-23 18:41:08,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-11-23 18:41:08,211 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 3 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 534 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:08,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2833 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 6 Unknown, 534 Unchecked, 31.9s Time] [2024-11-23 18:41:08,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-23 18:41:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 402. [2024-11-23 18:41:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 283 states have (on average 1.2756183745583038) internal successors, (361), 285 states have internal predecessors, (361), 86 states have call successors, (86), 31 states have call predecessors, (86), 32 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-23 18:41:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 536 transitions. [2024-11-23 18:41:08,235 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 536 transitions. Word has length 136 [2024-11-23 18:41:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:08,236 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 536 transitions. [2024-11-23 18:41:08,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-23 18:41:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 536 transitions. [2024-11-23 18:41:08,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 18:41:08,238 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:08,238 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:08,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:41:08,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:08,439 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:08,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:08,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1807754501, now seen corresponding path program 1 times [2024-11-23 18:41:08,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:08,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667492634] [2024-11-23 18:41:08,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:08,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-23 18:41:17,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667492634] [2024-11-23 18:41:17,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667492634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:17,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:17,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:41:17,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246991625] [2024-11-23 18:41:17,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:17,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:17,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:17,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:17,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:41:17,267 INFO L87 Difference]: Start difference. First operand 402 states and 536 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-23 18:41:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:17,893 INFO L93 Difference]: Finished difference Result 408 states and 541 transitions. [2024-11-23 18:41:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:17,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2024-11-23 18:41:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:17,900 INFO L225 Difference]: With dead ends: 408 [2024-11-23 18:41:17,900 INFO L226 Difference]: Without dead ends: 406 [2024-11-23 18:41:17,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:41:17,902 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 4 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:17,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2062 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:41:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-23 18:41:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2024-11-23 18:41:17,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 286 states have (on average 1.2727272727272727) internal successors, (364), 288 states have internal predecessors, (364), 86 states have call successors, (86), 32 states have call predecessors, (86), 33 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-23 18:41:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 539 transitions. [2024-11-23 18:41:17,932 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 539 transitions. Word has length 143 [2024-11-23 18:41:17,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:17,934 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 539 transitions. [2024-11-23 18:41:17,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-23 18:41:17,934 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 539 transitions. [2024-11-23 18:41:17,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 18:41:17,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:17,936 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:17,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:41:17,937 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:17,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:17,937 INFO L85 PathProgramCache]: Analyzing trace with hash -670871041, now seen corresponding path program 1 times [2024-11-23 18:41:17,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:17,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608198981] [2024-11-23 18:41:17,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:17,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:25,907 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-23 18:41:25,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:25,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608198981] [2024-11-23 18:41:25,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608198981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:25,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:25,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:41:25,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816159209] [2024-11-23 18:41:25,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:25,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:25,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:25,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:25,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:41:25,910 INFO L87 Difference]: Start difference. First operand 406 states and 539 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-23 18:41:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:26,434 INFO L93 Difference]: Finished difference Result 414 states and 547 transitions. [2024-11-23 18:41:26,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:26,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156 [2024-11-23 18:41:26,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:26,440 INFO L225 Difference]: With dead ends: 414 [2024-11-23 18:41:26,440 INFO L226 Difference]: Without dead ends: 412 [2024-11-23 18:41:26,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:41:26,442 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 3 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:26,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2067 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:41:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-23 18:41:26,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2024-11-23 18:41:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 289 states have (on average 1.2698961937716262) internal successors, (367), 292 states have internal predecessors, (367), 87 states have call successors, (87), 33 states have call predecessors, (87), 34 states have return successors, (90), 85 states have call predecessors, (90), 85 states have call successors, (90) [2024-11-23 18:41:26,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 544 transitions. [2024-11-23 18:41:26,468 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 544 transitions. Word has length 156 [2024-11-23 18:41:26,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:26,469 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 544 transitions. [2024-11-23 18:41:26,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-23 18:41:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 544 transitions. [2024-11-23 18:41:26,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 18:41:26,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:26,473 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:26,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:41:26,473 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:26,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash -669023999, now seen corresponding path program 1 times [2024-11-23 18:41:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:26,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432280923] [2024-11-23 18:41:26,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:26,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:33,547 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-23 18:41:33,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432280923] [2024-11-23 18:41:33,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432280923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:33,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:33,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:41:33,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106281875] [2024-11-23 18:41:33,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:33,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:33,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:33,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:33,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:41:33,549 INFO L87 Difference]: Start difference. First operand 411 states and 544 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-23 18:41:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:34,202 INFO L93 Difference]: Finished difference Result 417 states and 549 transitions. [2024-11-23 18:41:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:34,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156 [2024-11-23 18:41:34,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:34,207 INFO L225 Difference]: With dead ends: 417 [2024-11-23 18:41:34,207 INFO L226 Difference]: Without dead ends: 415 [2024-11-23 18:41:34,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:41:34,208 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 3 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:34,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2066 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:41:34,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-23 18:41:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 410. [2024-11-23 18:41:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 289 states have (on average 1.2698961937716262) internal successors, (367), 291 states have internal predecessors, (367), 86 states have call successors, (86), 33 states have call predecessors, (86), 34 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-23 18:41:34,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 542 transitions. [2024-11-23 18:41:34,231 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 542 transitions. Word has length 156 [2024-11-23 18:41:34,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:34,231 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 542 transitions. [2024-11-23 18:41:34,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-23 18:41:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 542 transitions. [2024-11-23 18:41:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 18:41:34,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:34,235 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:34,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:41:34,235 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1875367330, now seen corresponding path program 1 times [2024-11-23 18:41:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:34,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442105539] [2024-11-23 18:41:34,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-23 18:41:44,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:44,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442105539] [2024-11-23 18:41:44,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442105539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:44,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:44,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 18:41:44,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334989794] [2024-11-23 18:41:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:44,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 18:41:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:44,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 18:41:44,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:41:44,357 INFO L87 Difference]: Start difference. First operand 410 states and 542 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 18:41:47,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:47,751 INFO L93 Difference]: Finished difference Result 832 states and 1115 transitions. [2024-11-23 18:41:47,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 18:41:47,752 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 179 [2024-11-23 18:41:47,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:47,759 INFO L225 Difference]: With dead ends: 832 [2024-11-23 18:41:47,759 INFO L226 Difference]: Without dead ends: 500 [2024-11-23 18:41:47,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:41:47,765 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 133 mSDsluCounter, 5579 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 6144 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:47,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 6144 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 18:41:47,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-23 18:41:47,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 466. [2024-11-23 18:41:47,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 333 states have (on average 1.2882882882882882) internal successors, (429), 336 states have internal predecessors, (429), 94 states have call successors, (94), 36 states have call predecessors, (94), 38 states have return successors, (98), 93 states have call predecessors, (98), 92 states have call successors, (98) [2024-11-23 18:41:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 621 transitions. [2024-11-23 18:41:47,792 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 621 transitions. Word has length 179 [2024-11-23 18:41:47,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:47,795 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 621 transitions. [2024-11-23 18:41:47,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-23 18:41:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 621 transitions. [2024-11-23 18:41:47,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-23 18:41:47,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:47,798 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:47,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:41:47,799 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:47,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash -479474643, now seen corresponding path program 1 times [2024-11-23 18:41:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:47,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091459456] [2024-11-23 18:41:47,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:47,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:54,546 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-23 18:41:54,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:54,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091459456] [2024-11-23 18:41:54,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091459456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:54,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:54,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:41:54,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759831521] [2024-11-23 18:41:54,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:54,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:54,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:54,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:54,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:41:54,549 INFO L87 Difference]: Start difference. First operand 466 states and 621 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-23 18:41:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:54,758 INFO L93 Difference]: Finished difference Result 549 states and 719 transitions. [2024-11-23 18:41:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 171 [2024-11-23 18:41:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:54,764 INFO L225 Difference]: With dead ends: 549 [2024-11-23 18:41:54,764 INFO L226 Difference]: Without dead ends: 472 [2024-11-23 18:41:54,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:41:54,766 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:54,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2077 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:41:54,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-23 18:41:54,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-11-23 18:41:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 337 states have (on average 1.28486646884273) internal successors, (433), 341 states have internal predecessors, (433), 94 states have call successors, (94), 36 states have call predecessors, (94), 40 states have return successors, (100), 94 states have call predecessors, (100), 92 states have call successors, (100) [2024-11-23 18:41:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 627 transitions. [2024-11-23 18:41:54,795 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 627 transitions. Word has length 171 [2024-11-23 18:41:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:54,796 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 627 transitions. [2024-11-23 18:41:54,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-23 18:41:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 627 transitions. [2024-11-23 18:41:54,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-23 18:41:54,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:54,800 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:54,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:41:54,800 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:54,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:54,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1905320929, now seen corresponding path program 1 times [2024-11-23 18:41:54,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:54,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111835397] [2024-11-23 18:41:54,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:54,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:42:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-23 18:42:00,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:42:00,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111835397] [2024-11-23 18:42:00,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111835397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:42:00,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:42:00,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:42:00,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827096941] [2024-11-23 18:42:00,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:42:00,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:42:00,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:42:00,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:42:00,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:42:00,278 INFO L87 Difference]: Start difference. First operand 472 states and 627 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-23 18:42:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:42:00,381 INFO L93 Difference]: Finished difference Result 756 states and 999 transitions. [2024-11-23 18:42:00,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:42:00,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 173 [2024-11-23 18:42:00,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:42:00,386 INFO L225 Difference]: With dead ends: 756 [2024-11-23 18:42:00,386 INFO L226 Difference]: Without dead ends: 474 [2024-11-23 18:42:00,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:42:00,388 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:42:00,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1039 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:42:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-23 18:42:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2024-11-23 18:42:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 339 states have (on average 1.2831858407079646) internal successors, (435), 343 states have internal predecessors, (435), 94 states have call successors, (94), 36 states have call predecessors, (94), 40 states have return successors, (100), 94 states have call predecessors, (100), 92 states have call successors, (100) [2024-11-23 18:42:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 629 transitions. [2024-11-23 18:42:00,410 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 629 transitions. Word has length 173 [2024-11-23 18:42:00,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:42:00,410 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 629 transitions. [2024-11-23 18:42:00,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-23 18:42:00,410 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 629 transitions. [2024-11-23 18:42:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-23 18:42:00,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:42:00,413 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:42:00,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:42:00,413 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:42:00,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:42:00,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1524384807, now seen corresponding path program 1 times [2024-11-23 18:42:00,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:42:00,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132112165] [2024-11-23 18:42:00,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:42:00,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:42:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:42:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-11-23 18:42:19,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:42:19,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132112165] [2024-11-23 18:42:19,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132112165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:42:19,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925319485] [2024-11-23 18:42:19,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:42:19,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:42:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:42:19,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:42:19,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:42:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:42:27,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 4669 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-23 18:42:27,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:42:27,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-23 18:42:31,192 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-23 18:42:31,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-23 18:42:31,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-23 18:42:31,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-11-23 18:42:32,525 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-23 18:42:32,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-23 18:42:33,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-23 18:42:33,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 18:42:33,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-23 18:42:34,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-23 18:42:34,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 18:42:39,435 INFO L349 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2024-11-23 18:42:39,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 104 [2024-11-23 18:42:39,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2024-11-23 18:42:39,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 8 [2024-11-23 18:42:41,921 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-23 18:42:41,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2024-11-23 18:42:42,092 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-23 18:42:42,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-23 18:42:46,718 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_11|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_11|))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_11|) (not (= .cse0 0))))) is different from true [2024-11-23 18:42:51,624 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_12| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_12|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_12|))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_12|) (not (= .cse0 0))))) is different from true [2024-11-23 18:42:56,527 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_13| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_13|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_13|))) (and (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_13|) (not (= .cse0 0))))) is different from true [2024-11-23 18:42:57,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-23 18:43:02,050 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_14| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_14|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_14|))) (and (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_14|) (not (= .cse0 0))))) is different from true [2024-11-23 18:43:03,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 18:43:03,706 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 68 proven. 49 refuted. 12 times theorem prover too weak. 20 trivial. 63 not checked. [2024-11-23 18:43:03,706 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:43:07,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925319485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:43:07,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:43:07,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 32 [2024-11-23 18:43:07,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382931041] [2024-11-23 18:43:07,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 18:43:07,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-23 18:43:07,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:43:07,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-23 18:43:07,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=833, Unknown=14, NotChecked=244, Total=1190 [2024-11-23 18:43:07,202 INFO L87 Difference]: Start difference. First operand 474 states and 629 transitions. Second operand has 32 states, 30 states have (on average 4.766666666666667) internal successors, (143), 28 states have internal predecessors, (143), 18 states have call successors, (50), 11 states have call predecessors, (50), 13 states have return successors, (47), 18 states have call predecessors, (47), 18 states have call successors, (47) [2024-11-23 18:43:11,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:15,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:20,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:24,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:28,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:33,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:37,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:42,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:46,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:50,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:55,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:43:59,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:04,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:08,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:12,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:16,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:21,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:25,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:30,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:44:34,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:45:11,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:18,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:53,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:04,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:21,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:28,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:32,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:06,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:33,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:47:33,342 INFO L93 Difference]: Finished difference Result 1046 states and 1363 transitions. [2024-11-23 18:47:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-23 18:47:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.766666666666667) internal successors, (143), 28 states have internal predecessors, (143), 18 states have call successors, (50), 11 states have call predecessors, (50), 13 states have return successors, (47), 18 states have call predecessors, (47), 18 states have call successors, (47) Word has length 177 [2024-11-23 18:47:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:47:33,349 INFO L225 Difference]: With dead ends: 1046 [2024-11-23 18:47:33,350 INFO L226 Difference]: Without dead ends: 620 [2024-11-23 18:47:33,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 213 SyntacticMatches, 22 SemanticMatches, 59 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 46.8s TimeCoverageRelationStatistics Valid=328, Invalid=2865, Unknown=15, NotChecked=452, Total=3660 [2024-11-23 18:47:33,354 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1062 mSDsluCounter, 3661 mSDsCounter, 0 mSdLazyCounter, 8039 mSolverCounterSat, 611 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 242.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 3891 SdHoareTripleChecker+Invalid, 11500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 8039 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 2824 IncrementalHoareTripleChecker+Unchecked, 251.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:47:33,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 3891 Invalid, 11500 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [611 Valid, 8039 Invalid, 26 Unknown, 2824 Unchecked, 251.6s Time] [2024-11-23 18:47:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-23 18:47:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 593. [2024-11-23 18:47:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 421 states have (on average 1.2565320665083135) internal successors, (529), 426 states have internal predecessors, (529), 111 states have call successors, (111), 56 states have call predecessors, (111), 60 states have return successors, (123), 110 states have call predecessors, (123), 109 states have call successors, (123) [2024-11-23 18:47:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 763 transitions. [2024-11-23 18:47:33,426 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 763 transitions. Word has length 177 [2024-11-23 18:47:33,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:47:33,429 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 763 transitions. [2024-11-23 18:47:33,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.766666666666667) internal successors, (143), 28 states have internal predecessors, (143), 18 states have call successors, (50), 11 states have call predecessors, (50), 13 states have return successors, (47), 18 states have call predecessors, (47), 18 states have call successors, (47) [2024-11-23 18:47:33,429 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 763 transitions. [2024-11-23 18:47:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-23 18:47:33,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:47:33,434 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:47:33,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 18:47:33,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 18:47:33,635 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:47:33,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:47:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1912638931, now seen corresponding path program 1 times [2024-11-23 18:47:33,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:47:33,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183506002] [2024-11-23 18:47:33,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:47:33,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:47:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:47:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 18:47:46,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:47:46,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183506002] [2024-11-23 18:47:46,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183506002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:47:46,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193782641] [2024-11-23 18:47:46,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:47:46,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:47:46,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:47:46,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:47:46,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:47:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:47:55,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 4790 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 18:47:55,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:47:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-23 18:47:55,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:48:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 18:48:01,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193782641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:48:01,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:48:01,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 7] total 17 [2024-11-23 18:48:01,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684744893] [2024-11-23 18:48:01,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:48:01,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 18:48:01,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:48:01,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 18:48:01,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:48:01,065 INFO L87 Difference]: Start difference. First operand 593 states and 763 transitions. Second operand has 17 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 9 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-23 18:48:08,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:48:08,645 INFO L93 Difference]: Finished difference Result 1055 states and 1367 transitions. [2024-11-23 18:48:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 18:48:08,646 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 9 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) Word has length 197 [2024-11-23 18:48:08,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:48:08,652 INFO L225 Difference]: With dead ends: 1055 [2024-11-23 18:48:08,652 INFO L226 Difference]: Without dead ends: 606 [2024-11-23 18:48:08,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-23 18:48:08,655 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 144 mSDsluCounter, 5286 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 5784 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:48:08,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 5784 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-23 18:48:08,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-23 18:48:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 589. [2024-11-23 18:48:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 418 states have (on average 1.255980861244019) internal successors, (525), 423 states have internal predecessors, (525), 111 states have call successors, (111), 55 states have call predecessors, (111), 59 states have return successors, (119), 110 states have call predecessors, (119), 109 states have call successors, (119) [2024-11-23 18:48:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 755 transitions. [2024-11-23 18:48:08,727 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 755 transitions. Word has length 197 [2024-11-23 18:48:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:48:08,728 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 755 transitions. [2024-11-23 18:48:08,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 9 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-23 18:48:08,728 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 755 transitions. [2024-11-23 18:48:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-23 18:48:08,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:48:08,732 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:48:08,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 18:48:08,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 18:48:08,933 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:48:08,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:48:08,933 INFO L85 PathProgramCache]: Analyzing trace with hash 633872195, now seen corresponding path program 1 times [2024-11-23 18:48:08,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:48:08,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263674468] [2024-11-23 18:48:08,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:48:08,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:48:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:48:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-23 18:48:15,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:48:15,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263674468] [2024-11-23 18:48:15,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263674468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:48:15,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:48:15,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:48:15,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331437353] [2024-11-23 18:48:15,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:48:15,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:48:15,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:48:15,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:48:15,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:48:15,744 INFO L87 Difference]: Start difference. First operand 589 states and 755 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-23 18:48:16,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:48:16,034 INFO L93 Difference]: Finished difference Result 666 states and 847 transitions. [2024-11-23 18:48:16,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:48:16,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 188 [2024-11-23 18:48:16,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:48:16,039 INFO L225 Difference]: With dead ends: 666 [2024-11-23 18:48:16,040 INFO L226 Difference]: Without dead ends: 594 [2024-11-23 18:48:16,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:48:16,041 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:48:16,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2076 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:48:16,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-23 18:48:16,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2024-11-23 18:48:16,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 422 states have (on average 1.2535545023696681) internal successors, (529), 427 states have internal predecessors, (529), 111 states have call successors, (111), 55 states have call predecessors, (111), 60 states have return successors, (121), 111 states have call predecessors, (121), 109 states have call successors, (121) [2024-11-23 18:48:16,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 761 transitions. [2024-11-23 18:48:16,108 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 761 transitions. Word has length 188 [2024-11-23 18:48:16,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:48:16,109 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 761 transitions. [2024-11-23 18:48:16,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-23 18:48:16,109 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 761 transitions. [2024-11-23 18:48:16,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-23 18:48:16,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:48:16,112 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:48:16,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:48:16,112 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:48:16,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:48:16,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1790754754, now seen corresponding path program 1 times [2024-11-23 18:48:16,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:48:16,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258228507] [2024-11-23 18:48:16,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:48:16,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:48:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:48:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-23 18:48:27,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:48:27,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258228507] [2024-11-23 18:48:27,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258228507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:48:27,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455254939] [2024-11-23 18:48:27,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:48:27,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:48:27,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:48:27,522 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:48:27,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c75b38f-06c6-41bc-a0a1-84703489ab8f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 18:48:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:48:36,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 4765 conjuncts, 140 conjuncts are in the unsatisfiable core [2024-11-23 18:48:36,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:48:41,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 18:48:41,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 18:48:41,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-11-23 18:48:41,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 18:48:41,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2024-11-23 18:48:41,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2024-11-23 18:48:45,974 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_24| Int)) (<= (+ 2 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_24|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_24|)) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_24|)) is different from true [2024-11-23 18:48:52,398 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_25| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_25| Int)) (<= (+ (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_25|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_25|) 2) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_25|)) is different from true [2024-11-23 18:49:07,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:49:07,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2024-11-23 18:49:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 99 proven. 37 refuted. 15 times theorem prover too weak. 84 trivial. 34 not checked. [2024-11-23 18:49:07,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:49:33,178 INFO L349 Elim1Store]: treesize reduction 4, result has 93.8 percent of original size [2024-11-23 18:49:33,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 92 [2024-11-23 18:49:46,571 INFO L349 Elim1Store]: treesize reduction 4, result has 93.8 percent of original size [2024-11-23 18:49:46,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 92 [2024-11-23 18:49:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 45 proven. 23 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-23 18:49:52,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455254939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:49:52,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:49:52,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 29, 21] total 49 [2024-11-23 18:49:52,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311897892] [2024-11-23 18:49:52,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:49:52,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-23 18:49:52,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:49:52,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-23 18:49:52,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=2040, Unknown=2, NotChecked=182, Total=2352 [2024-11-23 18:49:52,423 INFO L87 Difference]: Start difference. First operand 594 states and 761 transitions. Second operand has 49 states, 40 states have (on average 4.925) internal successors, (197), 40 states have internal predecessors, (197), 23 states have call successors, (74), 10 states have call predecessors, (74), 17 states have return successors, (67), 18 states have call predecessors, (67), 19 states have call successors, (67) [2024-11-23 18:49:56,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:00,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:05,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:09,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:13,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:50:18,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:22,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:27,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:50:31,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:36,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:40,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:44,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:49,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:53,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:50:58,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:02,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:06,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:11,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-23 18:51:15,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-23 18:51:20,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:24,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:51:28,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:33,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:37,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:41,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:46,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:51:50,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:51:54,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:52:09,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:21,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:25,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:30,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:40,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:42,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:47,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:52,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:52:57,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]