./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30b7823755366f973ac95243d129f8492129fd0a43fc3ddfb545e22ce84d0c90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:03:13,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:03:13,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:03:13,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:03:13,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:03:13,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:03:13,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:03:13,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:03:13,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:03:13,970 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:03:13,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:03:13,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:03:13,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:03:13,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:03:13,971 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:03:13,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:03:13,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:03:13,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:03:13,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:03:13,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:03:13,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:03:13,975 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:03:13,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:03:13,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:03:13,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:03:13,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:03:13,976 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_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30b7823755366f973ac95243d129f8492129fd0a43fc3ddfb545e22ce84d0c90 [2024-11-24 01:03:14,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:03:14,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:03:14,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:03:14,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:03:14,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:03:14,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i [2024-11-24 01:03:17,528 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/data/77748f5ca/7a6329a801ec4edcb719c7161de583d6/FLAGc40a57a34 [2024-11-24 01:03:17,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:03:17,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i [2024-11-24 01:03:17,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/data/77748f5ca/7a6329a801ec4edcb719c7161de583d6/FLAGc40a57a34 [2024-11-24 01:03:18,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/data/77748f5ca/7a6329a801ec4edcb719c7161de583d6 [2024-11-24 01:03:18,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:03:18,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:03:18,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:03:18,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:03:18,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:03:18,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2d0b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18, skipping insertion in model container [2024-11-24 01:03:18,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:03:18,358 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_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i[1803,1816] [2024-11-24 01:03:18,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:03:18,396 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:03:18,410 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_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i[1803,1816] [2024-11-24 01:03:18,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:03:18,447 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:03:18,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18 WrapperNode [2024-11-24 01:03:18,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:03:18,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:03:18,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:03:18,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:03:18,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,494 INFO L138 Inliner]: procedures = 20, calls = 62, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2024-11-24 01:03:18,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:03:18,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:03:18,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:03:18,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:03:18,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,528 INFO L175 MemorySlicer]: Split 37 memory accesses to 6 slices as follows [2, 5, 3, 11, 5, 11]. 30 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 3, 1, 3]. [2024-11-24 01:03:18,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,540 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:03:18,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:03:18,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:03:18,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:03:18,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (1/1) ... [2024-11-24 01:03:18,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:03:18,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:18,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:03:18,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:03:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_40_to_41_0 [2024-11-24 01:03:18,637 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_40_to_41_0 [2024-11-24 01:03:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:03:18,638 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_49_to_54_0 [2024-11-24 01:03:18,638 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_49_to_54_0 [2024-11-24 01:03:18,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:03:18,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:03:18,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:03:18,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:03:18,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:03:18,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:03:18,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:03:18,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:03:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_58_to_61_0 [2024-11-24 01:03:18,641 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_58_to_61_0 [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:03:18,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 01:03:18,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 01:03:18,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:03:18,799 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:03:18,802 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:03:19,242 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-24 01:03:19,243 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:03:19,260 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:03:19,260 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:03:19,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:03:19 BoogieIcfgContainer [2024-11-24 01:03:19,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:03:19,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:03:19,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:03:19,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:03:19,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:03:18" (1/3) ... [2024-11-24 01:03:19,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73715d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:03:19, skipping insertion in model container [2024-11-24 01:03:19,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:03:18" (2/3) ... [2024-11-24 01:03:19,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73715d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:03:19, skipping insertion in model container [2024-11-24 01:03:19,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:03:19" (3/3) ... [2024-11-24 01:03:19,277 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_4.i [2024-11-24 01:03:19,301 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:03:19,303 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_simple_array_index_value_4.i that has 6 procedures, 48 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 01:03:19,386 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:03:19,409 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;@12904d1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:03:19,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:03:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 35 states have internal predecessors, (38), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 01:03:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-24 01:03:19,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:19,424 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:03:19,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:19,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash 991491108, now seen corresponding path program 1 times [2024-11-24 01:03:19,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:19,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563271317] [2024-11-24 01:03:19,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:19,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:03:19,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:19,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563271317] [2024-11-24 01:03:19,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563271317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:03:19,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444482783] [2024-11-24 01:03:19,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:19,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:19,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:19,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:19,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:03:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:19,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:03:20,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:03:20,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:03:20,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444482783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:20,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:03:20,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:03:20,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229499131] [2024-11-24 01:03:20,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:20,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:03:20,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:20,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:03:20,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:03:20,059 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 35 states have internal predecessors, (38), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:03:20,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:20,081 INFO L93 Difference]: Finished difference Result 86 states and 116 transitions. [2024-11-24 01:03:20,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:03:20,083 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-24 01:03:20,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:20,091 INFO L225 Difference]: With dead ends: 86 [2024-11-24 01:03:20,091 INFO L226 Difference]: Without dead ends: 42 [2024-11-24 01:03:20,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:03:20,103 INFO L435 NwaCegarLoop]: 58 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, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:20,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:03:20,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-24 01:03:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-24 01:03:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:03:20,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2024-11-24 01:03:20,149 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 28 [2024-11-24 01:03:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:20,150 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-11-24 01:03:20,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:03:20,151 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2024-11-24 01:03:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-24 01:03:20,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:20,152 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:03:20,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:03:20,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:03:20,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:20,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:20,354 INFO L85 PathProgramCache]: Analyzing trace with hash -744488160, now seen corresponding path program 1 times [2024-11-24 01:03:20,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:20,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157275759] [2024-11-24 01:03:20,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:20,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:03:20,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:20,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157275759] [2024-11-24 01:03:20,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157275759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:20,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:20,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:03:20,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897850475] [2024-11-24 01:03:20,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:20,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:03:20,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:20,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:03:20,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:03:20,922 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:03:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:21,289 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2024-11-24 01:03:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:03:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-24 01:03:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:21,293 INFO L225 Difference]: With dead ends: 78 [2024-11-24 01:03:21,293 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 01:03:21,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:03:21,298 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 27 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:21,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 55 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:03:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 01:03:21,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-24 01:03:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 30 states have internal predecessors, (31), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 01:03:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2024-11-24 01:03:21,315 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 28 [2024-11-24 01:03:21,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:21,315 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2024-11-24 01:03:21,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:03:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2024-11-24 01:03:21,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-24 01:03:21,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:21,317 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:03:21,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:03:21,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:21,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2084723388, now seen corresponding path program 1 times [2024-11-24 01:03:21,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:21,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163125027] [2024-11-24 01:03:21,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 01:03:22,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:22,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163125027] [2024-11-24 01:03:22,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163125027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:03:22,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148468324] [2024-11-24 01:03:22,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:22,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:22,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:22,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:22,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:03:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:22,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:03:22,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:22,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 01:03:22,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 01:03:23,042 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 01:03:23,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:03:23,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148468324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:23,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:03:23,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-24 01:03:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189901334] [2024-11-24 01:03:23,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:23,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:03:23,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:23,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:03:23,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:03:23,047 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:03:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:23,350 INFO L93 Difference]: Finished difference Result 84 states and 100 transitions. [2024-11-24 01:03:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:03:23,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-24 01:03:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:23,352 INFO L225 Difference]: With dead ends: 84 [2024-11-24 01:03:23,352 INFO L226 Difference]: Without dead ends: 56 [2024-11-24 01:03:23,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:03:23,353 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:23,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 266 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:03:23,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-24 01:03:23,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2024-11-24 01:03:23,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 34 states have internal predecessors, (36), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-24 01:03:23,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-11-24 01:03:23,364 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 33 [2024-11-24 01:03:23,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:23,364 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-11-24 01:03:23,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:03:23,364 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-11-24 01:03:23,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-24 01:03:23,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:23,365 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:03:23,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:03:23,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:23,569 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:23,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 2082876346, now seen corresponding path program 1 times [2024-11-24 01:03:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:23,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251165046] [2024-11-24 01:03:23,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:24,402 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 01:03:24,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:24,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251165046] [2024-11-24 01:03:24,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251165046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:03:24,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591510855] [2024-11-24 01:03:24,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:24,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:24,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:24,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:24,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:03:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:24,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 01:03:24,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:24,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 01:03:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 01:03:24,911 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:03:24,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591510855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:24,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:03:24,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 18 [2024-11-24 01:03:24,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583547946] [2024-11-24 01:03:24,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:24,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:03:24,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:24,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:03:24,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:03:24,914 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 11 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:03:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:25,307 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2024-11-24 01:03:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:03:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-24 01:03:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:25,310 INFO L225 Difference]: With dead ends: 62 [2024-11-24 01:03:25,310 INFO L226 Difference]: Without dead ends: 60 [2024-11-24 01:03:25,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:03:25,312 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 15 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:25,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 329 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:03:25,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-24 01:03:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2024-11-24 01:03:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 38 states have internal predecessors, (39), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-24 01:03:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-24 01:03:25,328 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 33 [2024-11-24 01:03:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:25,328 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-24 01:03:25,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:03:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-24 01:03:25,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-24 01:03:25,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:25,330 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:03:25,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:03:25,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:25,535 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:25,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1178366220, now seen corresponding path program 1 times [2024-11-24 01:03:25,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:25,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214058163] [2024-11-24 01:03:25,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:25,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:03:25,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:25,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214058163] [2024-11-24 01:03:25,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214058163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:25,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:25,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:03:25,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036035689] [2024-11-24 01:03:25,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:25,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:03:25,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:25,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:03:25,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:03:25,875 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 01:03:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:26,074 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2024-11-24 01:03:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:03:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-11-24 01:03:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:26,076 INFO L225 Difference]: With dead ends: 70 [2024-11-24 01:03:26,076 INFO L226 Difference]: Without dead ends: 54 [2024-11-24 01:03:26,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:03:26,077 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:26,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 59 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:03:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-24 01:03:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-24 01:03:26,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 37 states have internal predecessors, (38), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-24 01:03:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2024-11-24 01:03:26,090 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 39 [2024-11-24 01:03:26,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:26,091 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2024-11-24 01:03:26,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 01:03:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2024-11-24 01:03:26,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-24 01:03:26,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:26,093 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:26,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:03:26,093 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:26,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:26,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1566797982, now seen corresponding path program 1 times [2024-11-24 01:03:26,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:26,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114290936] [2024-11-24 01:03:26,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:26,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 01:03:26,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:26,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114290936] [2024-11-24 01:03:26,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114290936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:03:26,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60429422] [2024-11-24 01:03:26,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:26,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:26,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:26,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:26,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:03:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:27,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-24 01:03:27,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:27,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 01:03:27,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 01:03:27,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-24 01:03:28,196 INFO L349 Elim1Store]: treesize reduction 48, result has 53.4 percent of original size [2024-11-24 01:03:28,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 80 [2024-11-24 01:03:28,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2024-11-24 01:03:28,577 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:03:28,578 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:03:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:03:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60429422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:03:29,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:03:29,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 12] total 30 [2024-11-24 01:03:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581835356] [2024-11-24 01:03:29,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:03:29,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 01:03:29,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:29,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 01:03:29,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:03:29,524 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 30 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 26 states have internal predecessors, (58), 10 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (14), 5 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-24 01:03:33,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:37,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:41,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:45,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:50,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:03:55,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:04:00,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:04:04,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:04:08,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:04:12,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:04:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:12,336 INFO L93 Difference]: Finished difference Result 120 states and 142 transitions. [2024-11-24 01:04:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 01:04:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 26 states have internal predecessors, (58), 10 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (14), 5 states have call predecessors, (14), 8 states have call successors, (14) Word has length 49 [2024-11-24 01:04:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:12,338 INFO L225 Difference]: With dead ends: 120 [2024-11-24 01:04:12,338 INFO L226 Difference]: Without dead ends: 76 [2024-11-24 01:04:12,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=347, Invalid=2305, Unknown=0, NotChecked=0, Total=2652 [2024-11-24 01:04:12,341 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 64 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 34 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:12,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 223 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 923 Invalid, 10 Unknown, 0 Unchecked, 41.5s Time] [2024-11-24 01:04:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-24 01:04:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2024-11-24 01:04:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 46 states have internal predecessors, (47), 13 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (14), 10 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-24 01:04:12,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2024-11-24 01:04:12,356 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 49 [2024-11-24 01:04:12,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:12,356 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2024-11-24 01:04:12,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 26 states have internal predecessors, (58), 10 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (14), 5 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-24 01:04:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2024-11-24 01:04:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:04:12,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:12,358 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-24 01:04:12,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:04:12,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:12,562 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:12,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash -496979250, now seen corresponding path program 1 times [2024-11-24 01:04:12,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:12,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53007785] [2024-11-24 01:04:12,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:12,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 01:04:13,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:13,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53007785] [2024-11-24 01:04:13,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53007785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:13,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548200830] [2024-11-24 01:04:13,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:13,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:13,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:13,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:13,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:04:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:13,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-24 01:04:13,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:04:14,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:04:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:04:19,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548200830] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:04:19,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:04:19,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 14] total 31 [2024-11-24 01:04:19,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777460573] [2024-11-24 01:04:19,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:04:19,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 01:04:19,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:19,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 01:04:19,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=796, Unknown=1, NotChecked=0, Total=930 [2024-11-24 01:04:19,473 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 31 states, 23 states have (on average 2.217391304347826) internal successors, (51), 27 states have internal predecessors, (51), 9 states have call successors, (18), 6 states have call predecessors, (18), 11 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2024-11-24 01:04:23,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:04:27,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:04:39,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:04:43,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:04:44,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:44,624 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2024-11-24 01:04:44,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:04:44,625 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 23 states have (on average 2.217391304347826) internal successors, (51), 27 states have internal predecessors, (51), 9 states have call successors, (18), 6 states have call predecessors, (18), 11 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) Word has length 54 [2024-11-24 01:04:44,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:44,629 INFO L225 Difference]: With dead ends: 126 [2024-11-24 01:04:44,630 INFO L226 Difference]: Without dead ends: 71 [2024-11-24 01:04:44,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=177, Invalid=1010, Unknown=3, NotChecked=0, Total=1190 [2024-11-24 01:04:44,634 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 85 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 48 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:44,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 167 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 546 Invalid, 4 Unknown, 0 Unchecked, 16.9s Time] [2024-11-24 01:04:44,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-24 01:04:44,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-24 01:04:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 48 states have internal predecessors, (49), 13 states have call successors, (13), 10 states have call predecessors, (13), 12 states have return successors, (16), 12 states have call predecessors, (16), 11 states have call successors, (16) [2024-11-24 01:04:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2024-11-24 01:04:44,663 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 54 [2024-11-24 01:04:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:44,663 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2024-11-24 01:04:44,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 23 states have (on average 2.217391304347826) internal successors, (51), 27 states have internal predecessors, (51), 9 states have call successors, (18), 6 states have call predecessors, (18), 11 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2024-11-24 01:04:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2024-11-24 01:04:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 01:04:44,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:44,664 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 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] [2024-11-24 01:04:44,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:04:44,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:44,865 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:44,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1328207004, now seen corresponding path program 2 times [2024-11-24 01:04:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:44,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572253326] [2024-11-24 01:04:44,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:04:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:44,911 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:04:44,911 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:04:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 01:04:46,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572253326] [2024-11-24 01:04:46,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572253326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964910410] [2024-11-24 01:04:46,383 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:04:46,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:46,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:46,386 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:46,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:04:46,695 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:04:46,695 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:04:46,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-24 01:04:46,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:47,352 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:04:47,353 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:14,212 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:05:14,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964910410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:14,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:14,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 22] total 43 [2024-11-24 01:05:14,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347361987] [2024-11-24 01:05:14,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:14,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-24 01:05:14,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:14,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-24 01:05:14,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1599, Unknown=6, NotChecked=0, Total=1806 [2024-11-24 01:05:14,215 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 43 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 37 states have internal predecessors, (61), 11 states have call successors, (20), 8 states have call predecessors, (20), 17 states have return successors, (23), 13 states have call predecessors, (23), 11 states have call successors, (23) [2024-11-24 01:05:18,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:05:22,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:05:26,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:05:30,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:05:34,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:05:38,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:06,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:10,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:14,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:18,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:22,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:26,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:30,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:34,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:38,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:42,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:46,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:06:50,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:18,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:22,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:26,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:30,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:34,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:38,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:42,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:46,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:07:50,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:07,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:11,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:15,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:08:16,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:16,607 INFO L93 Difference]: Finished difference Result 130 states and 144 transitions. [2024-11-24 01:08:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:08:16,608 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 37 states have internal predecessors, (61), 11 states have call successors, (20), 8 states have call predecessors, (20), 17 states have return successors, (23), 13 states have call predecessors, (23), 11 states have call successors, (23) Word has length 64 [2024-11-24 01:08:16,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:16,610 INFO L225 Difference]: With dead ends: 130 [2024-11-24 01:08:16,611 INFO L226 Difference]: Without dead ends: 75 [2024-11-24 01:08:16,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 86.3s TimeCoverageRelationStatistics Valid=274, Invalid=2057, Unknown=21, NotChecked=0, Total=2352 [2024-11-24 01:08:16,613 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 105 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 65 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:16,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 271 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 940 Invalid, 30 Unknown, 0 Unchecked, 121.9s Time] [2024-11-24 01:08:16,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-24 01:08:16,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-24 01:08:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 50 states have internal predecessors, (51), 13 states have call successors, (13), 10 states have call predecessors, (13), 14 states have return successors, (18), 14 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-24 01:08:16,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2024-11-24 01:08:16,628 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 64 [2024-11-24 01:08:16,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:16,628 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2024-11-24 01:08:16,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 37 states have internal predecessors, (61), 11 states have call successors, (20), 8 states have call predecessors, (20), 17 states have return successors, (23), 13 states have call predecessors, (23), 11 states have call successors, (23) [2024-11-24 01:08:16,629 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2024-11-24 01:08:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 01:08:16,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:16,632 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 3, 3, 3, 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] [2024-11-24 01:08:16,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:08:16,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:08:16,833 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:16,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:16,833 INFO L85 PathProgramCache]: Analyzing trace with hash 529237866, now seen corresponding path program 3 times [2024-11-24 01:08:16,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:16,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149374482] [2024-11-24 01:08:16,833 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:08:16,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:16,893 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 01:08:16,894 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:08:17,733 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:08:17,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:17,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149374482] [2024-11-24 01:08:17,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149374482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:08:17,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451492817] [2024-11-24 01:08:17,734 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:08:17,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:08:17,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:08:17,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:08:17,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:08:17,921 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 01:08:17,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:08:17,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:08:17,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:08:17,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-24 01:08:38,850 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2024-11-24 01:08:38,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 60 [2024-11-24 01:08:47,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2024-11-24 01:08:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 01:08:47,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:09:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:09:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451492817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:09:32,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:09:32,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 13] total 33 [2024-11-24 01:09:32,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261517572] [2024-11-24 01:09:32,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:09:32,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-24 01:09:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:32,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-24 01:09:32,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=911, Unknown=16, NotChecked=0, Total=1056 [2024-11-24 01:09:32,221 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 28 states have internal predecessors, (53), 11 states have call successors, (16), 8 states have call predecessors, (16), 5 states have return successors, (10), 4 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-24 01:09:36,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:09:40,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:09:44,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:09:48,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:09:53,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:09:57,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:10:01,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:10:05,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:10:05,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:05,527 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2024-11-24 01:10:05,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:10:05,528 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 28 states have internal predecessors, (53), 11 states have call successors, (16), 8 states have call predecessors, (16), 5 states have return successors, (10), 4 states have call predecessors, (10), 7 states have call successors, (10) Word has length 74 [2024-11-24 01:10:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:05,530 INFO L225 Difference]: With dead ends: 87 [2024-11-24 01:10:05,530 INFO L226 Difference]: Without dead ends: 85 [2024-11-24 01:10:05,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 127 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 74.1s TimeCoverageRelationStatistics Valid=243, Invalid=1381, Unknown=16, NotChecked=0, Total=1640 [2024-11-24 01:10:05,531 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 44 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 24 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:05,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 735 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 505 Invalid, 8 Unknown, 0 Unchecked, 32.9s Time] [2024-11-24 01:10:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-24 01:10:05,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 66. [2024-11-24 01:10:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 43 states have internal predecessors, (44), 11 states have call successors, (11), 8 states have call predecessors, (11), 13 states have return successors, (16), 14 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-24 01:10:05,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2024-11-24 01:10:05,553 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 74 [2024-11-24 01:10:05,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:05,553 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2024-11-24 01:10:05,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 28 states have internal predecessors, (53), 11 states have call successors, (16), 8 states have call predecessors, (16), 5 states have return successors, (10), 4 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-24 01:10:05,553 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2024-11-24 01:10:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 01:10:05,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:05,555 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 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] [2024-11-24 01:10:05,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:10:05,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:05,759 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:05,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1582546760, now seen corresponding path program 1 times [2024-11-24 01:10:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:05,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835631126] [2024-11-24 01:10:05,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:05,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 11 proven. 53 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 01:10:08,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835631126] [2024-11-24 01:10:08,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835631126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098084503] [2024-11-24 01:10:08,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:08,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:08,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:08,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:08,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85acc2a-b2e8-4bf0-bf6b-2fc7e97b2c5a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:10:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:08,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 99 conjuncts are in the unsatisfiable core [2024-11-24 01:10:08,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:09,269 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 01:10:09,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:11:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 99 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:11:18,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098084503] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:11:18,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:11:18,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 30] total 55 [2024-11-24 01:11:18,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978343726] [2024-11-24 01:11:18,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:11:18,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-24 01:11:18,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:18,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-24 01:11:18,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=2685, Unknown=16, NotChecked=0, Total=2970 [2024-11-24 01:11:18,898 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand has 55 states, 43 states have (on average 1.9767441860465116) internal successors, (85), 47 states have internal predecessors, (85), 14 states have call successors, (26), 10 states have call predecessors, (26), 23 states have return successors, (33), 20 states have call predecessors, (33), 14 states have call successors, (33) [2024-11-24 01:11:23,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:27,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:31,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:35,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:39,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:43,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:47,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:51,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:55,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:59,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:43,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:47,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:51,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:55,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:59,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:03,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:07,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:11,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:15,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:19,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:23,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:27,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:31,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:35,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:39,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:43,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:47,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:51,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:55,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:13:59,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:03,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:07,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:59,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:03,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:07,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:11,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:15,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:19,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:23,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:27,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:31,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:35,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:39,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:43,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:47,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:51,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:55,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:15:59,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:16:03,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:16:07,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:16:11,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:16:15,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:16:19,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:00,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:04,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:08,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:12,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:16,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:20,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:24,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:28,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:32,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:36,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:40,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:44,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:48,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:52,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:56,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:18:24,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:18:28,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:18:32,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []