./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_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_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/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_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/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_f431cfa0-3661-4187-8add-6c92080cc374/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 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:39:23,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:39:23,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:39:23,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:39:23,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:39:23,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:39:23,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:39:23,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:39:23,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:39:23,835 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:39:23,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:39:23,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:39:23,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:39:23,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:39:23,837 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:39:23,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:39:23,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:39:23,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:39:23,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:39:23,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:39:23,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:39:23,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:39:23,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:39:23,839 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:39:23,839 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:39:23,839 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:39:23,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:39:23,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:39:23,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:39:23,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:23,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:39:23,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:39:23,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:39:23,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:39:23,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:23,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:39:23,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:39:23,842 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_f431cfa0-3661-4187-8add-6c92080cc374/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 -> 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 [2024-11-28 02:39:24,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:39:24,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:39:24,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:39:24,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:39:24,249 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:39:24,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2024-11-28 02:39:27,524 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/data/f7ade1960/4e8bbec2d67349d89d0f48e1dd6e0be5/FLAG05da59b4d [2024-11-28 02:39:28,235 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:39:28,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2024-11-28 02:39:28,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/data/f7ade1960/4e8bbec2d67349d89d0f48e1dd6e0be5/FLAG05da59b4d [2024-11-28 02:39:28,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/data/f7ade1960/4e8bbec2d67349d89d0f48e1dd6e0be5 [2024-11-28 02:39:28,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:39:28,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:39:28,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:39:28,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:39:28,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:39:28,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:39:28" (1/1) ... [2024-11-28 02:39:28,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381abb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:28, skipping insertion in model container [2024-11-28 02:39:28,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:39:28" (1/1) ... [2024-11-28 02:39:28,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:39:28,687 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_f431cfa0-3661-4187-8add-6c92080cc374/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2024-11-28 02:39:28,696 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_f431cfa0-3661-4187-8add-6c92080cc374/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2024-11-28 02:39:29,772 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,773 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,774 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,775 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,779 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,815 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,816 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,819 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,819 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,822 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,823 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,824 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:29,825 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,678 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,688 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,818 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,819 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:39:30,868 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:39:30,884 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_f431cfa0-3661-4187-8add-6c92080cc374/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2024-11-28 02:39:30,885 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_f431cfa0-3661-4187-8add-6c92080cc374/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2024-11-28 02:39:30,966 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,966 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,967 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,967 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,968 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,985 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,986 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,991 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,992 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,993 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,994 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,995 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:30,995 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:31,146 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:31,152 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:31,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-11-28 02:39:31,197 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:31,197 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:39:31,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:39:31,503 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:39:31,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31 WrapperNode [2024-11-28 02:39:31,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:39:31,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:39:31,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:39:31,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:39:31,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,703 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2024-11-28 02:39:31,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:39:31,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:39:31,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:39:31,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:39:31,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,859 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 3, 6, 55, 9]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 0, 10, 5]. The 239 writes are split as follows [232, 0, 1, 2, 3, 1]. [2024-11-28 02:39:31,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,932 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:39:31,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:39:31,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:39:31,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:39:31,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (1/1) ... [2024-11-28 02:39:31,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:32,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:39:32,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:39:32,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:39:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:39:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-28 02:39:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-28 02:39:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-28 02:39:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-28 02:39:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 02:39:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 02:39:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 02:39:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 02:39:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 02:39:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 02:39:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 02:39:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 02:39:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:39:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:39:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:39:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 02:39:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:39:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:39:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:39:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:39:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:39:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:39:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-28 02:39:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-28 02:39:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:39:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:39:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 02:39:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 02:39:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 02:39:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 02:39:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-28 02:39:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-28 02:39:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 02:39:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-28 02:39:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-28 02:39:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:39:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-28 02:39:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-28 02:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:39:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 02:39:32,087 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 02:39:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 02:39:32,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 02:39:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:39:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:39:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-28 02:39:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:39:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:39:32,495 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:39:32,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:39:39,269 INFO L? ?]: Removed 128 outVars from TransFormulas that were not future-live. [2024-11-28 02:39:39,269 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:39:39,283 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:39:39,286 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:39:39,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:39:39 BoogieIcfgContainer [2024-11-28 02:39:39,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:39:39,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:39:39,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:39:39,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:39:39,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:39:28" (1/3) ... [2024-11-28 02:39:39,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1d9643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:39:39, skipping insertion in model container [2024-11-28 02:39:39,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:31" (2/3) ... [2024-11-28 02:39:39,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1d9643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:39:39, skipping insertion in model container [2024-11-28 02:39:39,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:39:39" (3/3) ... [2024-11-28 02:39:39,299 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_get_at_harness.i [2024-11-28 02:39:39,318 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:39:39,320 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_get_at_harness.i that has 18 procedures, 186 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:39:39,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:39:39,412 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;@3b630d33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:39:39,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:39:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 02:39:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 02:39:39,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:39:39,436 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:39:39,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:39:39,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:39:39,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1431118103, now seen corresponding path program 1 times [2024-11-28 02:39:39,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:39:39,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448947150] [2024-11-28 02:39:39,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:39:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:39:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:39:47,546 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-28 02:39:47,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:39:47,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448947150] [2024-11-28 02:39:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448947150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:39:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687220955] [2024-11-28 02:39:47,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:39:47,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:39:47,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:39:47,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:39:47,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:39:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:39:54,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:39:54,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:39:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-28 02:39:54,895 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:39:54,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687220955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:39:54,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:39:54,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:39:54,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802739727] [2024-11-28 02:39:54,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:39:54,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:39:54,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:39:54,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:39:54,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:39:54,931 INFO L87 Difference]: Start difference. First operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 02:39:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:39:54,979 INFO L93 Difference]: Finished difference Result 365 states and 517 transitions. [2024-11-28 02:39:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:39:54,981 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134 [2024-11-28 02:39:54,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:39:54,990 INFO L225 Difference]: With dead ends: 365 [2024-11-28 02:39:54,990 INFO L226 Difference]: Without dead ends: 177 [2024-11-28 02:39:54,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 02:39:54,997 INFO L435 NwaCegarLoop]: 242 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, 242 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 02:39:55,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:39:55,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-28 02:39:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-28 02:39:55,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 105 states have (on average 1.161904761904762) internal successors, (122), 106 states have internal predecessors, (122), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 02:39:55,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 230 transitions. [2024-11-28 02:39:55,080 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 230 transitions. Word has length 134 [2024-11-28 02:39:55,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:39:55,082 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 230 transitions. [2024-11-28 02:39:55,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 02:39:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 230 transitions. [2024-11-28 02:39:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 02:39:55,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:39:55,086 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:39:55,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:39:55,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:39:55,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:39:55,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:39:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash 143965157, now seen corresponding path program 1 times [2024-11-28 02:39:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:39:55,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277116660] [2024-11-28 02:39:55,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:39:55,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-28 02:40:02,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:02,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277116660] [2024-11-28 02:40:02,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277116660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:40:02,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810771798] [2024-11-28 02:40:02,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:02,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:40:02,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:40:02,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:40:02,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:40:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:09,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:40:09,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:40:09,655 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-28 02:40:09,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:40:09,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810771798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:09,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:40:09,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 02:40:09,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156047491] [2024-11-28 02:40:09,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:09,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:40:09,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:09,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:40:09,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:40:09,659 INFO L87 Difference]: Start difference. First operand 177 states and 230 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 02:40:11,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:11,651 INFO L93 Difference]: Finished difference Result 327 states and 431 transitions. [2024-11-28 02:40:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:40:11,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 134 [2024-11-28 02:40:11,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:11,658 INFO L225 Difference]: With dead ends: 327 [2024-11-28 02:40:11,658 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 02:40:11,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:40:11,661 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 242 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:11,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 658 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 02:40:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 02:40:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-28 02:40:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-28 02:40:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 236 transitions. [2024-11-28 02:40:11,698 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 236 transitions. Word has length 134 [2024-11-28 02:40:11,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:11,701 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 236 transitions. [2024-11-28 02:40:11,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 02:40:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 236 transitions. [2024-11-28 02:40:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 02:40:11,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:11,709 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:11,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:40:11,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:40:11,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:11,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:11,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1011624823, now seen corresponding path program 1 times [2024-11-28 02:40:11,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:11,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328812338] [2024-11-28 02:40:11,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:11,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 02:40:19,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328812338] [2024-11-28 02:40:19,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328812338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:40:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167157146] [2024-11-28 02:40:19,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:19,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:40:19,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:40:19,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:40:19,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:40:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:26,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 4529 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:40:26,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:40:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 02:40:27,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:40:27,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167157146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:27,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:40:27,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-28 02:40:27,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722453524] [2024-11-28 02:40:27,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:27,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:40:27,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:27,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:40:27,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:40:27,595 INFO L87 Difference]: Start difference. First operand 179 states and 236 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:40:29,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:29,857 INFO L93 Difference]: Finished difference Result 287 states and 378 transitions. [2024-11-28 02:40:29,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:40:29,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 164 [2024-11-28 02:40:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:29,866 INFO L225 Difference]: With dead ends: 287 [2024-11-28 02:40:29,867 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 02:40:29,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:40:29,876 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 243 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:29,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 819 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 02:40:29,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 02:40:29,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-28 02:40:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-28 02:40:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 233 transitions. [2024-11-28 02:40:29,918 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 233 transitions. Word has length 164 [2024-11-28 02:40:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:29,919 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 233 transitions. [2024-11-28 02:40:29,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:40:29,919 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 233 transitions. [2024-11-28 02:40:29,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 02:40:29,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:29,925 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:29,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:40:30,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:40:30,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:30,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash 39476137, now seen corresponding path program 2 times [2024-11-28 02:40:30,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:30,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259918659] [2024-11-28 02:40:30,127 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:40:30,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:36,539 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:40:36,540 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:40:38,353 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-28 02:40:38,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:38,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259918659] [2024-11-28 02:40:38,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259918659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:38,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:38,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:40:38,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488230208] [2024-11-28 02:40:38,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:38,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:40:38,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:38,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:40:38,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:40:38,357 INFO L87 Difference]: Start difference. First operand 179 states and 233 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:40:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:39,855 INFO L93 Difference]: Finished difference Result 276 states and 355 transitions. [2024-11-28 02:40:39,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:40:39,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 179 [2024-11-28 02:40:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:39,858 INFO L225 Difference]: With dead ends: 276 [2024-11-28 02:40:39,859 INFO L226 Difference]: Without dead ends: 177 [2024-11-28 02:40:39,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:40:39,864 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 55 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:39,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1346 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:40:39,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-28 02:40:39,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-28 02:40:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 105 states have (on average 1.1523809523809523) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 02:40:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 229 transitions. [2024-11-28 02:40:39,900 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 229 transitions. Word has length 179 [2024-11-28 02:40:39,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:39,901 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 229 transitions. [2024-11-28 02:40:39,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:40:39,901 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 229 transitions. [2024-11-28 02:40:39,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 02:40:39,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:39,906 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:39,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:40:39,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:39,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:39,907 INFO L85 PathProgramCache]: Analyzing trace with hash 390920913, now seen corresponding path program 1 times [2024-11-28 02:40:39,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:39,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021111361] [2024-11-28 02:40:39,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:39,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-28 02:40:48,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:48,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021111361] [2024-11-28 02:40:48,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021111361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:48,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:48,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:40:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684973926] [2024-11-28 02:40:48,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:48,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:40:48,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:48,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:40:48,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:40:48,696 INFO L87 Difference]: Start difference. First operand 177 states and 229 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 02:40:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:49,168 INFO L93 Difference]: Finished difference Result 306 states and 399 transitions. [2024-11-28 02:40:49,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:40:49,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 209 [2024-11-28 02:40:49,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:49,172 INFO L225 Difference]: With dead ends: 306 [2024-11-28 02:40:49,172 INFO L226 Difference]: Without dead ends: 197 [2024-11-28 02:40:49,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:40:49,174 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 6 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:49,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1339 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:40:49,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-28 02:40:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 193. [2024-11-28 02:40:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 115 states have (on average 1.1478260869565218) internal successors, (132), 116 states have internal predecessors, (132), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (59), 59 states have call predecessors, (59), 58 states have call successors, (59) [2024-11-28 02:40:49,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 251 transitions. [2024-11-28 02:40:49,213 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 251 transitions. Word has length 209 [2024-11-28 02:40:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:49,213 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 251 transitions. [2024-11-28 02:40:49,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 02:40:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 251 transitions. [2024-11-28 02:40:49,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 02:40:49,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:49,218 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:49,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:40:49,218 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:49,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:49,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1421961811, now seen corresponding path program 1 times [2024-11-28 02:40:49,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:49,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135234472] [2024-11-28 02:40:49,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:49,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-28 02:40:58,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:58,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135234472] [2024-11-28 02:40:58,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135234472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:58,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:58,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:40:58,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133491499] [2024-11-28 02:40:58,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:58,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:40:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:58,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:40:58,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:40:58,668 INFO L87 Difference]: Start difference. First operand 193 states and 251 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:40:59,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:59,195 INFO L93 Difference]: Finished difference Result 319 states and 419 transitions. [2024-11-28 02:40:59,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:40:59,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 209 [2024-11-28 02:40:59,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:59,199 INFO L225 Difference]: With dead ends: 319 [2024-11-28 02:40:59,199 INFO L226 Difference]: Without dead ends: 216 [2024-11-28 02:40:59,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:40:59,201 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 13 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:59,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1579 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:40:59,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-28 02:40:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2024-11-28 02:40:59,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 118 states have (on average 1.1440677966101696) internal successors, (135), 119 states have internal predecessors, (135), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2024-11-28 02:40:59,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 260 transitions. [2024-11-28 02:40:59,238 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 260 transitions. Word has length 209 [2024-11-28 02:40:59,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:59,239 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 260 transitions. [2024-11-28 02:40:59,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:40:59,240 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 260 transitions. [2024-11-28 02:40:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 02:40:59,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:59,246 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:59,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:40:59,246 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:59,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash 689994385, now seen corresponding path program 1 times [2024-11-28 02:40:59,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:59,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868453354] [2024-11-28 02:40:59,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:59,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:11,613 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-28 02:41:11,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:11,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868453354] [2024-11-28 02:41:11,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868453354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:11,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546204381] [2024-11-28 02:41:11,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:11,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:11,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:11,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:11,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:41:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:20,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 4904 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:41:20,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 02:41:20,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:20,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546204381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:20,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:20,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-28 02:41:20,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108844262] [2024-11-28 02:41:20,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:20,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:20,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:20,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:20,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:41:20,936 INFO L87 Difference]: Start difference. First operand 199 states and 260 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 02:41:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:21,820 INFO L93 Difference]: Finished difference Result 308 states and 401 transitions. [2024-11-28 02:41:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:21,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 209 [2024-11-28 02:41:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:21,824 INFO L225 Difference]: With dead ends: 308 [2024-11-28 02:41:21,825 INFO L226 Difference]: Without dead ends: 177 [2024-11-28 02:41:21,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:41:21,828 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:21,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 814 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:41:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-28 02:41:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-28 02:41:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 105 states have (on average 1.1333333333333333) internal successors, (119), 106 states have internal predecessors, (119), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 02:41:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 227 transitions. [2024-11-28 02:41:21,849 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 227 transitions. Word has length 209 [2024-11-28 02:41:21,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:21,850 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 227 transitions. [2024-11-28 02:41:21,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 02:41:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 227 transitions. [2024-11-28 02:41:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 02:41:21,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:21,854 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2024-11-28 02:41:21,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:41:22,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 02:41:22,055 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:22,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:22,056 INFO L85 PathProgramCache]: Analyzing trace with hash 293926171, now seen corresponding path program 1 times [2024-11-28 02:41:22,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:22,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374694055] [2024-11-28 02:41:22,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:22,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:36,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228416474] [2024-11-28 02:41:36,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:36,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:36,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:36,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:36,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f431cfa0-3661-4187-8add-6c92080cc374/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process