./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:43:26,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:43:26,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:43:26,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:43:26,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:43:26,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:43:26,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:43:26,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:43:26,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:43:26,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:43:26,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:43:26,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:43:26,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:43:26,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:43:26,212 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:43:26,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:43:26,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:43:26,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:43:26,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:43:26,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:43:26,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:43:26,213 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:43:26,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:43:26,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:43:26,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:43:26,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:43:26,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:43:26,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:43:26,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:43:26,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:43:26,214 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:43:26,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:43:26,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:43:26,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:43:26,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:43:26,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:43:26,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:43:26,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:43:26,215 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_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f [2024-11-28 03:43:26,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:43:26,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:43:26,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:43:26,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:43:26,533 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:43:26,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2024-11-28 03:43:29,489 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/data/3d82fba8b/5d0a42c2447b42cda2cb6f04f855527e/FLAG993bedb89 [2024-11-28 03:43:30,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:43:30,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2024-11-28 03:43:30,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/data/3d82fba8b/5d0a42c2447b42cda2cb6f04f855527e/FLAG993bedb89 [2024-11-28 03:43:30,268 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/data/3d82fba8b/5d0a42c2447b42cda2cb6f04f855527e [2024-11-28 03:43:30,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:43:30,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:43:30,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:43:30,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:43:30,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:43:30,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:43:30" (1/1) ... [2024-11-28 03:43:30,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33965b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:30, skipping insertion in model container [2024-11-28 03:43:30,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:43:30" (1/1) ... [2024-11-28 03:43:30,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:43:30,669 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_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2024-11-28 03:43:30,676 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_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2024-11-28 03:43:31,682 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,683 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,683 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,684 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,685 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,701 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,702 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,704 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,705 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,707 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,709 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,709 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:31,710 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,494 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,503 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,601 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,603 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:43:32,790 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:43:32,804 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_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2024-11-28 03:43:32,805 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_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2024-11-28 03:43:32,849 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,850 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,850 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,851 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,852 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,859 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,860 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,861 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,862 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,863 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,864 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,864 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,864 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,970 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:32,975 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:33,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8553] [2024-11-28 03:43:33,041 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:33,041 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:43:33,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [9039-9050] [2024-11-28 03:43:33,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:43:33,428 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:43:33,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33 WrapperNode [2024-11-28 03:43:33,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:43:33,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:43:33,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:43:33,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:43:33,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,654 INFO L138 Inliner]: procedures = 684, calls = 3059, calls flagged for inlining = 70, calls inlined = 10, statements flattened = 980 [2024-11-28 03:43:33,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:43:33,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:43:33,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:43:33,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:43:33,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,678 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,790 INFO L175 MemorySlicer]: Split 591 memory accesses to 7 slices as follows [21, 2, 257, 238, 6, 16, 51]. 43 percent of accesses are in the largest equivalence class. The 37 initializations are split as follows [5, 2, 0, 6, 0, 16, 8]. The 498 writes are split as follows [4, 0, 257, 232, 2, 0, 3]. [2024-11-28 03:43:33,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,862 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:43:33,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:43:33,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:43:33,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:43:33,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2024-11-28 03:43:33,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:43:33,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:43:33,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:43:33,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:43:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-28 03:43:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-28 03:43:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-28 03:43:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-28 03:43:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-28 03:43:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-28 03:43:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 03:43:34,032 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:43:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-28 03:43:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-28 03:43:34,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-28 03:43:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-28 03:43:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-28 03:43:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-28 03:43:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-28 03:43:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-28 03:43:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-28 03:43:34,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:43:34,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:43:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:43:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:43:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:43:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:43:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:43:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:43:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:43:34,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:43:34,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 03:43:34,040 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 03:43:34,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 03:43:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-28 03:43:34,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:43:34,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 03:43:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-28 03:43:34,042 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-28 03:43:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:43:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:43:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:43:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:43:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:43:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 03:43:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 03:43:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 03:43:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 03:43:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 03:43:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 03:43:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:43:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:43:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:43:34,497 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:43:34,501 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:43:44,392 INFO L? ?]: Removed 251 outVars from TransFormulas that were not future-live. [2024-11-28 03:43:44,392 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:43:44,419 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:43:44,419 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:43:44,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:43:44 BoogieIcfgContainer [2024-11-28 03:43:44,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:43:44,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:43:44,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:43:44,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:43:44,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:43:30" (1/3) ... [2024-11-28 03:43:44,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5243b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:43:44, skipping insertion in model container [2024-11-28 03:43:44,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (2/3) ... [2024-11-28 03:43:44,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5243b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:43:44, skipping insertion in model container [2024-11-28 03:43:44,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:43:44" (3/3) ... [2024-11-28 03:43:44,437 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_string_harness.i [2024-11-28 03:43:44,459 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:43:44,462 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_from_whole_string_harness.i that has 20 procedures, 211 locations, 1 initial locations, 14 loop locations, and 1 error locations. [2024-11-28 03:43:44,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:43:44,563 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;@3fd037ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:43:44,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:43:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 119 states have internal predecessors, (149), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 03:43:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:43:44,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:43:44,580 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:43:44,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:43:44,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1996143641, now seen corresponding path program 1 times [2024-11-28 03:43:44,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:44,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297035011] [2024-11-28 03:43:44,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:44,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:45:25,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:25,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297035011] [2024-11-28 03:45:25,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297035011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:45:25,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189443922] [2024-11-28 03:45:25,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:25,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:45:25,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:45:25,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:45:25,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:47:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:14,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 7708 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:47:14,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:14,418 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:47:14,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:14,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189443922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:14,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:14,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:47:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593453523] [2024-11-28 03:47:14,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:14,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:47:14,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:14,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:47:14,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:47:14,456 INFO L87 Difference]: Start difference. First operand has 181 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 119 states have internal predecessors, (149), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:47:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:14,514 INFO L93 Difference]: Finished difference Result 353 states and 507 transitions. [2024-11-28 03:47:14,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:47:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2024-11-28 03:47:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:14,528 INFO L225 Difference]: With dead ends: 353 [2024-11-28 03:47:14,528 INFO L226 Difference]: Without dead ends: 176 [2024-11-28 03:47:14,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:47:14,537 INFO L435 NwaCegarLoop]: 243 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, 243 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:14,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:47:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-28 03:47:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-28 03:47:14,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 114 states have (on average 1.2543859649122806) internal successors, (143), 115 states have internal predecessors, (143), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 03:47:14,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2024-11-28 03:47:14,605 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 62 [2024-11-28 03:47:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:14,607 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2024-11-28 03:47:14,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:47:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2024-11-28 03:47:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:47:14,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:14,612 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:47:14,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:47:14,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5243fb0b-ff9e-44ac-9b6b-3dc493f88690/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:47:14,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:14,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1690815581, now seen corresponding path program 1 times [2024-11-28 03:47:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68556943] [2024-11-28 03:47:14,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 03:49:08,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:08,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68556943] [2024-11-28 03:49:08,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68556943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:08,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:08,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:49:08,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252170914] [2024-11-28 03:49:08,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:08,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:49:08,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:08,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:49:08,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:49:08,008 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:49:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:08,870 INFO L93 Difference]: Finished difference Result 313 states and 431 transitions. [2024-11-28 03:49:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:49:08,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-11-28 03:49:08,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:08,884 INFO L225 Difference]: With dead ends: 313 [2024-11-28 03:49:08,884 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 03:49:08,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:49:08,888 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 50 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:08,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 805 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:49:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 03:49:08,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-28 03:49:08,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 116 states have (on average 1.25) internal successors, (145), 118 states have internal predecessors, (145), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-28 03:49:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 244 transitions. [2024-11-28 03:49:08,931 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 244 transitions. Word has length 62 [2024-11-28 03:49:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:08,932 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 244 transitions. [2024-11-28 03:49:08,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:49:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 244 transitions. [2024-11-28 03:49:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:49:08,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:08,936 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:49:08,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:49:08,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:08,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash -960899666, now seen corresponding path program 1 times [2024-11-28 03:49:08,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:08,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643382750] [2024-11-28 03:49:08,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:08,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:51:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:51:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 03:51:08,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:51:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643382750] [2024-11-28 03:51:08,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643382750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:51:08,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:51:08,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:51:08,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493452369] [2024-11-28 03:51:08,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:51:08,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:51:08,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:51:08,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:51:08,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:51:08,965 INFO L87 Difference]: Start difference. First operand 179 states and 244 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:51:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:51:10,246 INFO L93 Difference]: Finished difference Result 185 states and 249 transitions. [2024-11-28 03:51:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:51:10,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2024-11-28 03:51:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:51:10,253 INFO L225 Difference]: With dead ends: 185 [2024-11-28 03:51:10,257 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 03:51:10,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:51:10,260 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 85 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:51:10,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1026 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:51:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 03:51:10,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-28 03:51:10,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 119 states have (on average 1.2436974789915967) internal successors, (148), 121 states have internal predecessors, (148), 48 states have call successors, (48), 14 states have call predecessors, (48), 15 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-28 03:51:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 247 transitions. [2024-11-28 03:51:10,314 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 247 transitions. Word has length 68 [2024-11-28 03:51:10,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:51:10,316 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 247 transitions. [2024-11-28 03:51:10,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:51:10,317 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 247 transitions. [2024-11-28 03:51:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:51:10,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:10,323 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 03:51:10,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:51:10,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:51:10,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1735774001, now seen corresponding path program 1 times [2024-11-28 03:51:10,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:10,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612222114] [2024-11-28 03:51:10,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:10,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 03:53:16,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:16,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612222114] [2024-11-28 03:53:16,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612222114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:16,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:16,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:53:16,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843326997] [2024-11-28 03:53:16,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:16,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:53:16,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:16,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:53:16,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:53:16,161 INFO L87 Difference]: Start difference. First operand 183 states and 247 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:53:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:53:18,944 INFO L93 Difference]: Finished difference Result 215 states and 293 transitions. [2024-11-28 03:53:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:53:18,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2024-11-28 03:53:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:53:18,948 INFO L225 Difference]: With dead ends: 215 [2024-11-28 03:53:18,948 INFO L226 Difference]: Without dead ends: 213 [2024-11-28 03:53:18,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:53:18,950 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 25 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:53:18,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1416 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:53:18,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-28 03:53:18,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 193. [2024-11-28 03:53:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 126 states have (on average 1.246031746031746) internal successors, (157), 129 states have internal predecessors, (157), 50 states have call successors, (50), 15 states have call predecessors, (50), 16 states have return successors, (53), 48 states have call predecessors, (53), 49 states have call successors, (53) [2024-11-28 03:53:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 260 transitions. [2024-11-28 03:53:18,996 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 260 transitions. Word has length 74 [2024-11-28 03:53:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:53:18,996 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 260 transitions. [2024-11-28 03:53:18,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:53:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 260 transitions. [2024-11-28 03:53:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:53:18,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:53:19,000 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:53:19,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:53:19,000 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:53:19,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:19,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1938056932, now seen corresponding path program 1 times [2024-11-28 03:53:19,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:19,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019618820] [2024-11-28 03:53:19,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 03:55:24,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:24,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019618820] [2024-11-28 03:55:24,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019618820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:24,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:24,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:55:24,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839797928] [2024-11-28 03:55:24,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:24,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:24,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:24,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:24,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:24,799 INFO L87 Difference]: Start difference. First operand 193 states and 260 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:55:25,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:25,055 INFO L93 Difference]: Finished difference Result 294 states and 399 transitions. [2024-11-28 03:55:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:25,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2024-11-28 03:55:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:25,061 INFO L225 Difference]: With dead ends: 294 [2024-11-28 03:55:25,062 INFO L226 Difference]: Without dead ends: 229 [2024-11-28 03:55:25,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:25,064 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 12 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:25,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 696 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:55:25,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-28 03:55:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2024-11-28 03:55:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 150 states have (on average 1.24) internal successors, (186), 153 states have internal predecessors, (186), 62 states have call successors, (62), 15 states have call predecessors, (62), 16 states have return successors, (66), 60 states have call predecessors, (66), 61 states have call successors, (66) [2024-11-28 03:55:25,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 314 transitions. [2024-11-28 03:55:25,102 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 314 transitions. Word has length 75 [2024-11-28 03:55:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:25,105 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 314 transitions. [2024-11-28 03:55:25,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:55:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 314 transitions. [2024-11-28 03:55:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 03:55:25,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:25,109 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-28 03:55:25,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:55:25,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:25,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:25,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2057222190, now seen corresponding path program 1 times [2024-11-28 03:55:25,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:25,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279173477] [2024-11-28 03:55:25,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:25,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 03:57:38,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:38,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279173477] [2024-11-28 03:57:38,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279173477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:38,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:57:38,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:57:38,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507830577] [2024-11-28 03:57:38,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:38,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:57:38,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:38,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:57:38,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:57:38,133 INFO L87 Difference]: Start difference. First operand 229 states and 314 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 03:57:43,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:43,375 INFO L93 Difference]: Finished difference Result 450 states and 639 transitions. [2024-11-28 03:57:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:57:43,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 80 [2024-11-28 03:57:43,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:43,379 INFO L225 Difference]: With dead ends: 450 [2024-11-28 03:57:43,379 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 03:57:43,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:57:43,382 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 68 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:43,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1271 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 03:57:43,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 03:57:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 266. [2024-11-28 03:57:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 172 states have (on average 1.2383720930232558) internal successors, (213), 176 states have internal predecessors, (213), 76 states have call successors, (76), 15 states have call predecessors, (76), 17 states have return successors, (86), 74 states have call predecessors, (86), 75 states have call successors, (86) [2024-11-28 03:57:43,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 375 transitions. [2024-11-28 03:57:43,421 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 375 transitions. Word has length 80 [2024-11-28 03:57:43,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:43,422 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 375 transitions. [2024-11-28 03:57:43,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 03:57:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 375 transitions. [2024-11-28 03:57:43,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 03:57:43,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:43,426 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-28 03:57:43,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:57:43,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:43,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:43,428 INFO L85 PathProgramCache]: Analyzing trace with hash -759716362, now seen corresponding path program 1 times [2024-11-28 03:57:43,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:43,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636872932] [2024-11-28 03:57:43,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:43,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms