./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5bbf318bd4a4e295f88f23f80bb9f32022c2eeb214e815b87206f6eafbbf272 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:54,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:55,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:55,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:55,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:55,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:55,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:55,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:55,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:55,105 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:55,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:55,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:55,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:55,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:55,106 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:55,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:55,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:55,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:55,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:55,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:55,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:55,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:55,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:55,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:55,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:55,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:55,108 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:55,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:55,108 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:55,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:55,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:55,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:55,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:55,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:55,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:55,111 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:55,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:55,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:55,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:55,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:55,112 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:55,112 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_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5bbf318bd4a4e295f88f23f80bb9f32022c2eeb214e815b87206f6eafbbf272 [2024-11-28 02:07:55,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:55,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:55,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:55,477 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:55,478 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:55,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c [2024-11-28 02:07:58,656 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/data/0edb517e6/82e5e9c84ec74bbb86fbbab54474711d/FLAG47e5fabd0 [2024-11-28 02:07:58,961 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:58,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c [2024-11-28 02:07:58,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/data/0edb517e6/82e5e9c84ec74bbb86fbbab54474711d/FLAG47e5fabd0 [2024-11-28 02:07:59,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/data/0edb517e6/82e5e9c84ec74bbb86fbbab54474711d [2024-11-28 02:07:59,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:59,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:59,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:59,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:59,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:59,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca8832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59, skipping insertion in model container [2024-11-28 02:07:59,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:59,235 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_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c[913,926] [2024-11-28 02:07:59,282 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_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c[5977,5990] [2024-11-28 02:07:59,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:59,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:59,372 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_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c[913,926] [2024-11-28 02:07:59,396 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_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.05.cil-1.c[5977,5990] [2024-11-28 02:07:59,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:59,474 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:59,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59 WrapperNode [2024-11-28 02:07:59,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:59,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:59,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:59,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:59,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,529 INFO L138 Inliner]: procedures = 58, calls = 63, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 651 [2024-11-28 02:07:59,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:59,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:59,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:59,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:59,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,576 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:07:59,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,593 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:59,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:59,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:59,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:59,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (1/1) ... [2024-11-28 02:07:59,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:59,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:59,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:59,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 02:07:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 02:07:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-28 02:07:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-28 02:07:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-28 02:07:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-28 02:07:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-28 02:07:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-28 02:07:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-28 02:07:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-28 02:07:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-28 02:07:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-28 02:07:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-28 02:07:59,717 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-28 02:07:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-28 02:07:59,717 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-28 02:07:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:59,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-28 02:07:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-28 02:07:59,849 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:59,851 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:08:00,780 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-11-28 02:08:00,780 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:08:00,805 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:08:00,805 INFO L312 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-28 02:08:00,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:08:00 BoogieIcfgContainer [2024-11-28 02:08:00,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:08:00,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:08:00,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:08:00,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:08:00,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:59" (1/3) ... [2024-11-28 02:08:00,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174b636f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:08:00, skipping insertion in model container [2024-11-28 02:08:00,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:59" (2/3) ... [2024-11-28 02:08:00,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174b636f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:08:00, skipping insertion in model container [2024-11-28 02:08:00,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:08:00" (3/3) ... [2024-11-28 02:08:00,816 INFO L128 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.05.cil-1.c [2024-11-28 02:08:00,832 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:08:00,835 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_1.cil-2+token_ring.05.cil-1.c that has 10 procedures, 273 locations, 1 initial locations, 12 loop locations, and 2 error locations. [2024-11-28 02:08:00,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:08:00,927 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;@118146fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:08:00,928 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:08:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 238 states have (on average 1.6092436974789917) internal successors, (383), 241 states have internal predecessors, (383), 25 states have call successors, (25), 9 states have call predecessors, (25), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 02:08:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 02:08:00,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:00,940 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:00,941 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:00,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:00,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1225768963, now seen corresponding path program 1 times [2024-11-28 02:08:00,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:00,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742376428] [2024-11-28 02:08:00,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:00,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742376428] [2024-11-28 02:08:01,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742376428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:01,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:01,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:01,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244823897] [2024-11-28 02:08:01,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:01,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:01,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:01,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:01,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:01,342 INFO L87 Difference]: Start difference. First operand has 273 states, 238 states have (on average 1.6092436974789917) internal successors, (383), 241 states have internal predecessors, (383), 25 states have call successors, (25), 9 states have call predecessors, (25), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:08:01,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:01,478 INFO L93 Difference]: Finished difference Result 583 states and 928 transitions. [2024-11-28 02:08:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:01,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-28 02:08:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:01,530 INFO L225 Difference]: With dead ends: 583 [2024-11-28 02:08:01,531 INFO L226 Difference]: Without dead ends: 318 [2024-11-28 02:08:01,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:01,539 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 385 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:01,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 497 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-28 02:08:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 314. [2024-11-28 02:08:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 273 states have (on average 1.4981684981684982) internal successors, (409), 276 states have internal predecessors, (409), 29 states have call successors, (29), 11 states have call predecessors, (29), 10 states have return successors, (31), 27 states have call predecessors, (31), 27 states have call successors, (31) [2024-11-28 02:08:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 469 transitions. [2024-11-28 02:08:01,614 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 469 transitions. Word has length 41 [2024-11-28 02:08:01,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:01,614 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 469 transitions. [2024-11-28 02:08:01,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:08:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 469 transitions. [2024-11-28 02:08:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 02:08:01,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:01,618 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:01,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:08:01,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:01,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:01,619 INFO L85 PathProgramCache]: Analyzing trace with hash 102581521, now seen corresponding path program 1 times [2024-11-28 02:08:01,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:01,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106286340] [2024-11-28 02:08:01,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:01,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:01,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:01,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106286340] [2024-11-28 02:08:01,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106286340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:01,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:01,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:01,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357067182] [2024-11-28 02:08:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:01,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:01,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:01,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:01,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:01,771 INFO L87 Difference]: Start difference. First operand 314 states and 469 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:08:01,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:01,855 INFO L93 Difference]: Finished difference Result 507 states and 742 transitions. [2024-11-28 02:08:01,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:01,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-28 02:08:01,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:01,862 INFO L225 Difference]: With dead ends: 507 [2024-11-28 02:08:01,865 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 02:08:01,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:01,867 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 66 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:01,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 791 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:01,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 02:08:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 375. [2024-11-28 02:08:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 328 states have (on average 1.4847560975609757) internal successors, (487), 331 states have internal predecessors, (487), 32 states have call successors, (32), 14 states have call predecessors, (32), 13 states have return successors, (35), 30 states have call predecessors, (35), 30 states have call successors, (35) [2024-11-28 02:08:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 554 transitions. [2024-11-28 02:08:01,934 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 554 transitions. Word has length 42 [2024-11-28 02:08:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:01,934 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 554 transitions. [2024-11-28 02:08:01,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:08:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 554 transitions. [2024-11-28 02:08:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:08:01,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:01,940 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:01,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:08:01,940 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:01,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:01,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1035456068, now seen corresponding path program 1 times [2024-11-28 02:08:01,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:01,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984062945] [2024-11-28 02:08:01,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:01,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:02,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984062945] [2024-11-28 02:08:02,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984062945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:02,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:02,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:02,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794020271] [2024-11-28 02:08:02,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:02,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:02,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:02,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:02,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:02,065 INFO L87 Difference]: Start difference. First operand 375 states and 554 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:08:02,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:02,148 INFO L93 Difference]: Finished difference Result 700 states and 1014 transitions. [2024-11-28 02:08:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:02,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-28 02:08:02,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:02,157 INFO L225 Difference]: With dead ends: 700 [2024-11-28 02:08:02,157 INFO L226 Difference]: Without dead ends: 532 [2024-11-28 02:08:02,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:02,160 INFO L435 NwaCegarLoop]: 404 mSDtfsCounter, 372 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:02,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 478 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:02,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-28 02:08:02,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 520. [2024-11-28 02:08:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 455 states have (on average 1.443956043956044) internal successors, (657), 460 states have internal predecessors, (657), 43 states have call successors, (43), 21 states have call predecessors, (43), 20 states have return successors, (51), 39 states have call predecessors, (51), 41 states have call successors, (51) [2024-11-28 02:08:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 751 transitions. [2024-11-28 02:08:02,233 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 751 transitions. Word has length 43 [2024-11-28 02:08:02,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:02,233 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 751 transitions. [2024-11-28 02:08:02,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:08:02,233 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 751 transitions. [2024-11-28 02:08:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:08:02,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:02,240 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:02,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:08:02,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:02,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1309213928, now seen corresponding path program 1 times [2024-11-28 02:08:02,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:02,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791575918] [2024-11-28 02:08:02,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:02,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:08:02,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:02,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791575918] [2024-11-28 02:08:02,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791575918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:02,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:02,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:02,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353030807] [2024-11-28 02:08:02,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:02,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:02,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:02,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:02,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:02,411 INFO L87 Difference]: Start difference. First operand 520 states and 751 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:08:02,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:02,489 INFO L93 Difference]: Finished difference Result 991 states and 1407 transitions. [2024-11-28 02:08:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:02,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-28 02:08:02,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:02,499 INFO L225 Difference]: With dead ends: 991 [2024-11-28 02:08:02,499 INFO L226 Difference]: Without dead ends: 678 [2024-11-28 02:08:02,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:02,502 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 53 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:02,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 835 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:02,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-28 02:08:02,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2024-11-28 02:08:02,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 591 states have (on average 1.392554991539763) internal successors, (823), 596 states have internal predecessors, (823), 57 states have call successors, (57), 29 states have call predecessors, (57), 28 states have return successors, (73), 53 states have call predecessors, (73), 55 states have call successors, (73) [2024-11-28 02:08:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 953 transitions. [2024-11-28 02:08:02,571 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 953 transitions. Word has length 58 [2024-11-28 02:08:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:02,572 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 953 transitions. [2024-11-28 02:08:02,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:08:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 953 transitions. [2024-11-28 02:08:02,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:08:02,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:02,581 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:02,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:08:02,581 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:02,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:02,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1103231207, now seen corresponding path program 1 times [2024-11-28 02:08:02,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:02,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487141361] [2024-11-28 02:08:02,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:02,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:08:02,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:02,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487141361] [2024-11-28 02:08:02,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487141361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:02,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672700082] [2024-11-28 02:08:02,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:02,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:02,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:02,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:02,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:08:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:03,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:08:03,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:08:03,128 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:03,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672700082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:03,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:08:03,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-28 02:08:03,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821381223] [2024-11-28 02:08:03,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:03,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:03,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:03,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:03,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:08:03,130 INFO L87 Difference]: Start difference. First operand 678 states and 953 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:08:03,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:03,212 INFO L93 Difference]: Finished difference Result 1180 states and 1630 transitions. [2024-11-28 02:08:03,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:03,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2024-11-28 02:08:03,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:03,219 INFO L225 Difference]: With dead ends: 1180 [2024-11-28 02:08:03,220 INFO L226 Difference]: Without dead ends: 797 [2024-11-28 02:08:03,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:08:03,224 INFO L435 NwaCegarLoop]: 398 mSDtfsCounter, 351 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:03,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 472 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:03,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-28 02:08:03,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2024-11-28 02:08:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 696 states have (on average 1.3649425287356323) internal successors, (950), 701 states have internal predecessors, (950), 65 states have call successors, (65), 35 states have call predecessors, (65), 34 states have return successors, (85), 61 states have call predecessors, (85), 63 states have call successors, (85) [2024-11-28 02:08:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1100 transitions. [2024-11-28 02:08:03,297 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1100 transitions. Word has length 63 [2024-11-28 02:08:03,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:03,297 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1100 transitions. [2024-11-28 02:08:03,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:08:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1100 transitions. [2024-11-28 02:08:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:08:03,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:03,304 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:03,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:08:03,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:03,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:03,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:03,507 INFO L85 PathProgramCache]: Analyzing trace with hash -703240008, now seen corresponding path program 1 times [2024-11-28 02:08:03,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:03,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959531694] [2024-11-28 02:08:03,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:08:03,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:03,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959531694] [2024-11-28 02:08:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959531694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:03,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607359830] [2024-11-28 02:08:03,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:03,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:03,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:03,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:03,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:08:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:03,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:08:03,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:03,962 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 02:08:04,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607359830] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:04,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:08:04,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-28 02:08:04,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004003625] [2024-11-28 02:08:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:04,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:04,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:04,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:04,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:08:04,027 INFO L87 Difference]: Start difference. First operand 797 states and 1100 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:08:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:04,293 INFO L93 Difference]: Finished difference Result 847 states and 1162 transitions. [2024-11-28 02:08:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:04,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 63 [2024-11-28 02:08:04,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:04,304 INFO L225 Difference]: With dead ends: 847 [2024-11-28 02:08:04,304 INFO L226 Difference]: Without dead ends: 844 [2024-11-28 02:08:04,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:08:04,306 INFO L435 NwaCegarLoop]: 417 mSDtfsCounter, 703 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:04,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 480 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:08:04,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-11-28 02:08:04,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 796. [2024-11-28 02:08:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 696 states have (on average 1.3620689655172413) internal successors, (948), 700 states have internal predecessors, (948), 64 states have call successors, (64), 35 states have call predecessors, (64), 34 states have return successors, (85), 61 states have call predecessors, (85), 63 states have call successors, (85) [2024-11-28 02:08:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1097 transitions. [2024-11-28 02:08:04,392 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1097 transitions. Word has length 63 [2024-11-28 02:08:04,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:04,394 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1097 transitions. [2024-11-28 02:08:04,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:08:04,394 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1097 transitions. [2024-11-28 02:08:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:08:04,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:04,397 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:04,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:08:04,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:04,602 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:04,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:04,603 INFO L85 PathProgramCache]: Analyzing trace with hash -326473713, now seen corresponding path program 1 times [2024-11-28 02:08:04,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:04,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371055726] [2024-11-28 02:08:04,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:04,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:08:04,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:04,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371055726] [2024-11-28 02:08:04,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371055726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:04,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127099380] [2024-11-28 02:08:04,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:04,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:04,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:04,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:04,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:08:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:04,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:08:04,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:05,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 02:08:05,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127099380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:05,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:08:05,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2024-11-28 02:08:05,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467939776] [2024-11-28 02:08:05,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:05,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:08:05,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:05,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:08:05,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:08:05,361 INFO L87 Difference]: Start difference. First operand 796 states and 1097 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-28 02:08:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:05,993 INFO L93 Difference]: Finished difference Result 2033 states and 2774 transitions. [2024-11-28 02:08:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 02:08:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 64 [2024-11-28 02:08:05,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:06,004 INFO L225 Difference]: With dead ends: 2033 [2024-11-28 02:08:06,004 INFO L226 Difference]: Without dead ends: 1576 [2024-11-28 02:08:06,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:08:06,007 INFO L435 NwaCegarLoop]: 478 mSDtfsCounter, 529 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:06,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 3325 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:08:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-28 02:08:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1131. [2024-11-28 02:08:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 995 states have (on average 1.3296482412060302) internal successors, (1323), 1004 states have internal predecessors, (1323), 84 states have call successors, (84), 49 states have call predecessors, (84), 50 states have return successors, (116), 78 states have call predecessors, (116), 83 states have call successors, (116) [2024-11-28 02:08:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1523 transitions. [2024-11-28 02:08:06,130 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1523 transitions. Word has length 64 [2024-11-28 02:08:06,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:06,131 INFO L471 AbstractCegarLoop]: Abstraction has 1131 states and 1523 transitions. [2024-11-28 02:08:06,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-28 02:08:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1523 transitions. [2024-11-28 02:08:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 02:08:06,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:06,136 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:06,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:06,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 02:08:06,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:06,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:06,341 INFO L85 PathProgramCache]: Analyzing trace with hash -405826236, now seen corresponding path program 1 times [2024-11-28 02:08:06,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:06,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144548567] [2024-11-28 02:08:06,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:06,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:06,436 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 02:08:06,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:06,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144548567] [2024-11-28 02:08:06,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144548567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:06,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893775663] [2024-11-28 02:08:06,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:06,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:06,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:06,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:06,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:08:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:06,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:06,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 02:08:06,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:06,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893775663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:06,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:08:06,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:08:06,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853820075] [2024-11-28 02:08:06,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:06,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:06,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:06,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:06,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:06,607 INFO L87 Difference]: Start difference. First operand 1131 states and 1523 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:08:06,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:06,697 INFO L93 Difference]: Finished difference Result 1731 states and 2318 transitions. [2024-11-28 02:08:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:06,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 82 [2024-11-28 02:08:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:06,705 INFO L225 Difference]: With dead ends: 1731 [2024-11-28 02:08:06,705 INFO L226 Difference]: Without dead ends: 1019 [2024-11-28 02:08:06,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:06,708 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 356 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:06,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 494 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:06,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-28 02:08:06,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1010. [2024-11-28 02:08:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 888 states have (on average 1.3277027027027026) internal successors, (1179), 898 states have internal predecessors, (1179), 76 states have call successors, (76), 43 states have call predecessors, (76), 44 states have return successors, (104), 69 states have call predecessors, (104), 75 states have call successors, (104) [2024-11-28 02:08:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1359 transitions. [2024-11-28 02:08:06,791 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1359 transitions. Word has length 82 [2024-11-28 02:08:06,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:06,792 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1359 transitions. [2024-11-28 02:08:06,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:08:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1359 transitions. [2024-11-28 02:08:06,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 02:08:06,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:06,796 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:06,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:08:06,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:06,997 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:06,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:06,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1630844165, now seen corresponding path program 1 times [2024-11-28 02:08:06,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:06,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22365338] [2024-11-28 02:08:06,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:06,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:08:07,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:07,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22365338] [2024-11-28 02:08:07,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22365338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:07,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197544069] [2024-11-28 02:08:07,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:07,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:07,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:07,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:07,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:08:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:07,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:08:07,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:08:07,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:07,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197544069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:07,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:08:07,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:08:07,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340864253] [2024-11-28 02:08:07,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:07,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:07,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:07,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:07,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:07,317 INFO L87 Difference]: Start difference. First operand 1010 states and 1359 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:08:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:07,411 INFO L93 Difference]: Finished difference Result 1359 states and 1800 transitions. [2024-11-28 02:08:07,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:07,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 96 [2024-11-28 02:08:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:07,415 INFO L225 Difference]: With dead ends: 1359 [2024-11-28 02:08:07,415 INFO L226 Difference]: Without dead ends: 201 [2024-11-28 02:08:07,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:07,419 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 60 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:07,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 807 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:07,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-28 02:08:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-28 02:08:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 175 states have (on average 1.5371428571428571) internal successors, (269), 176 states have internal predecessors, (269), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:08:07,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 307 transitions. [2024-11-28 02:08:07,441 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 307 transitions. Word has length 96 [2024-11-28 02:08:07,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:07,442 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 307 transitions. [2024-11-28 02:08:07,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:08:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 307 transitions. [2024-11-28 02:08:07,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:07,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:07,444 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:07,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:07,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d085f2cc-6648-48b3-b932-9bffaf7fcdcc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 02:08:07,645 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:07,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1992672353, now seen corresponding path program 1 times [2024-11-28 02:08:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:07,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129270097] [2024-11-28 02:08:07,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:07,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:07,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:07,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129270097] [2024-11-28 02:08:07,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129270097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:07,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:07,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:07,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683854070] [2024-11-28 02:08:07,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:07,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:07,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:07,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:07,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:07,729 INFO L87 Difference]: Start difference. First operand 201 states and 307 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:07,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:07,757 INFO L93 Difference]: Finished difference Result 393 states and 601 transitions. [2024-11-28 02:08:07,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:07,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:07,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:07,760 INFO L225 Difference]: With dead ends: 393 [2024-11-28 02:08:07,761 INFO L226 Difference]: Without dead ends: 201 [2024-11-28 02:08:07,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:07,763 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 298 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:07,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 306 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:07,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-28 02:08:07,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-28 02:08:07,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 175 states have (on average 1.5314285714285714) internal successors, (268), 176 states have internal predecessors, (268), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:08:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 306 transitions. [2024-11-28 02:08:07,781 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 306 transitions. Word has length 99 [2024-11-28 02:08:07,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:07,781 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 306 transitions. [2024-11-28 02:08:07,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 306 transitions. [2024-11-28 02:08:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:07,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:07,785 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:07,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:08:07,785 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:07,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:07,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1531561377, now seen corresponding path program 1 times [2024-11-28 02:08:07,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:07,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358941463] [2024-11-28 02:08:07,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:07,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:07,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:07,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358941463] [2024-11-28 02:08:07,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358941463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:07,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:07,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320119969] [2024-11-28 02:08:07,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:07,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:07,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:07,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:07,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:07,978 INFO L87 Difference]: Start difference. First operand 201 states and 306 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:08,570 INFO L93 Difference]: Finished difference Result 595 states and 918 transitions. [2024-11-28 02:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:08:08,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:08,574 INFO L225 Difference]: With dead ends: 595 [2024-11-28 02:08:08,574 INFO L226 Difference]: Without dead ends: 408 [2024-11-28 02:08:08,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:08,575 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 554 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:08,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 822 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:08:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-28 02:08:08,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 393. [2024-11-28 02:08:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 346 states have (on average 1.546242774566474) internal successors, (535), 348 states have internal predecessors, (535), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-28 02:08:08,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 602 transitions. [2024-11-28 02:08:08,605 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 602 transitions. Word has length 99 [2024-11-28 02:08:08,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:08,606 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 602 transitions. [2024-11-28 02:08:08,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:08,606 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 602 transitions. [2024-11-28 02:08:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:08,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:08,607 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:08,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:08:08,608 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:08,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:08,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1179498211, now seen corresponding path program 1 times [2024-11-28 02:08:08,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:08,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582951012] [2024-11-28 02:08:08,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:08,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:08,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:08,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582951012] [2024-11-28 02:08:08,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582951012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:08,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:08,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:08,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630340570] [2024-11-28 02:08:08,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:08,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:08,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:08,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:08,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:08,802 INFO L87 Difference]: Start difference. First operand 393 states and 602 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:09,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:09,568 INFO L93 Difference]: Finished difference Result 1014 states and 1571 transitions. [2024-11-28 02:08:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:08:09,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:09,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:09,573 INFO L225 Difference]: With dead ends: 1014 [2024-11-28 02:08:09,573 INFO L226 Difference]: Without dead ends: 635 [2024-11-28 02:08:09,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:08:09,575 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 550 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:09,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1551 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:08:09,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-28 02:08:09,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 572. [2024-11-28 02:08:09,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 504 states have (on average 1.5396825396825398) internal successors, (776), 507 states have internal predecessors, (776), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-28 02:08:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 874 transitions. [2024-11-28 02:08:09,622 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 874 transitions. Word has length 99 [2024-11-28 02:08:09,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:09,622 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 874 transitions. [2024-11-28 02:08:09,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:09,623 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 874 transitions. [2024-11-28 02:08:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:09,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:09,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:09,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:08:09,625 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:09,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:09,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1548711135, now seen corresponding path program 1 times [2024-11-28 02:08:09,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:09,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652615868] [2024-11-28 02:08:09,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:09,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:09,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:09,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652615868] [2024-11-28 02:08:09,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652615868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:09,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:09,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:09,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481042119] [2024-11-28 02:08:09,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:09,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:09,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:09,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:09,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:09,833 INFO L87 Difference]: Start difference. First operand 572 states and 874 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:10,178 INFO L93 Difference]: Finished difference Result 1180 states and 1824 transitions. [2024-11-28 02:08:10,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:10,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:10,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:10,183 INFO L225 Difference]: With dead ends: 1180 [2024-11-28 02:08:10,184 INFO L226 Difference]: Without dead ends: 622 [2024-11-28 02:08:10,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:10,187 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 396 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:10,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 578 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:08:10,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-28 02:08:10,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 572. [2024-11-28 02:08:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 504 states have (on average 1.5337301587301588) internal successors, (773), 507 states have internal predecessors, (773), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-28 02:08:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 871 transitions. [2024-11-28 02:08:10,238 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 871 transitions. Word has length 99 [2024-11-28 02:08:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:10,238 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 871 transitions. [2024-11-28 02:08:10,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 871 transitions. [2024-11-28 02:08:10,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:10,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:10,239 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:10,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:08:10,240 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:10,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:10,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1603753695, now seen corresponding path program 1 times [2024-11-28 02:08:10,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:10,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051574665] [2024-11-28 02:08:10,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:10,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:10,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051574665] [2024-11-28 02:08:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051574665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:10,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:10,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:10,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593203033] [2024-11-28 02:08:10,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:10,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:10,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:10,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:10,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:10,443 INFO L87 Difference]: Start difference. First operand 572 states and 871 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:11,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:11,291 INFO L93 Difference]: Finished difference Result 1563 states and 2401 transitions. [2024-11-28 02:08:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:08:11,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:11,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:11,298 INFO L225 Difference]: With dead ends: 1563 [2024-11-28 02:08:11,298 INFO L226 Difference]: Without dead ends: 1005 [2024-11-28 02:08:11,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:08:11,301 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 534 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:11,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1502 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:08:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-28 02:08:11,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 945. [2024-11-28 02:08:11,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 833 states have (on average 1.531812725090036) internal successors, (1276), 840 states have internal predecessors, (1276), 75 states have call successors, (75), 30 states have call predecessors, (75), 36 states have return successors, (91), 78 states have call predecessors, (91), 75 states have call successors, (91) [2024-11-28 02:08:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1442 transitions. [2024-11-28 02:08:11,424 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1442 transitions. Word has length 99 [2024-11-28 02:08:11,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:11,425 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1442 transitions. [2024-11-28 02:08:11,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:11,425 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1442 transitions. [2024-11-28 02:08:11,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:11,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:11,428 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:11,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:08:11,429 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:11,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:11,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1843993441, now seen corresponding path program 1 times [2024-11-28 02:08:11,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:11,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15062661] [2024-11-28 02:08:11,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:11,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:11,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:11,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15062661] [2024-11-28 02:08:11,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15062661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:11,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:11,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:11,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749104017] [2024-11-28 02:08:11,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:11,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:11,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:11,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:11,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:11,632 INFO L87 Difference]: Start difference. First operand 945 states and 1442 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:12,555 INFO L93 Difference]: Finished difference Result 2738 states and 4230 transitions. [2024-11-28 02:08:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:08:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:12,566 INFO L225 Difference]: With dead ends: 2738 [2024-11-28 02:08:12,567 INFO L226 Difference]: Without dead ends: 1807 [2024-11-28 02:08:12,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:08:12,570 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 529 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:12,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1490 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:08:12,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-11-28 02:08:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1736. [2024-11-28 02:08:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1530 states have (on average 1.5372549019607844) internal successors, (2352), 1551 states have internal predecessors, (2352), 131 states have call successors, (131), 54 states have call predecessors, (131), 74 states have return successors, (195), 138 states have call predecessors, (195), 131 states have call successors, (195) [2024-11-28 02:08:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2678 transitions. [2024-11-28 02:08:12,758 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2678 transitions. Word has length 99 [2024-11-28 02:08:12,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:12,759 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2678 transitions. [2024-11-28 02:08:12,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:12,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2678 transitions. [2024-11-28 02:08:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:12,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:12,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:12,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:08:12,762 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:12,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1611940193, now seen corresponding path program 1 times [2024-11-28 02:08:12,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:12,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768288988] [2024-11-28 02:08:12,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:12,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:12,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:12,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768288988] [2024-11-28 02:08:12,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768288988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:12,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:12,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300530303] [2024-11-28 02:08:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:12,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:12,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:12,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:12,925 INFO L87 Difference]: Start difference. First operand 1736 states and 2678 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:14,050 INFO L93 Difference]: Finished difference Result 5569 states and 8733 transitions. [2024-11-28 02:08:14,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:08:14,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:14,073 INFO L225 Difference]: With dead ends: 5569 [2024-11-28 02:08:14,073 INFO L226 Difference]: Without dead ends: 3847 [2024-11-28 02:08:14,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:08:14,080 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 577 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:14,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1465 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:08:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2024-11-28 02:08:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3411. [2024-11-28 02:08:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3007 states have (on average 1.5510475557033587) internal successors, (4664), 3074 states have internal predecessors, (4664), 235 states have call successors, (235), 102 states have call predecessors, (235), 168 states have return successors, (491), 250 states have call predecessors, (491), 235 states have call successors, (491) [2024-11-28 02:08:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 5390 transitions. [2024-11-28 02:08:14,466 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 5390 transitions. Word has length 99 [2024-11-28 02:08:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:14,467 INFO L471 AbstractCegarLoop]: Abstraction has 3411 states and 5390 transitions. [2024-11-28 02:08:14,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 5390 transitions. [2024-11-28 02:08:14,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:14,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:14,471 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:14,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:08:14,472 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:14,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1584874591, now seen corresponding path program 1 times [2024-11-28 02:08:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:14,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383496406] [2024-11-28 02:08:14,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:14,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:14,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383496406] [2024-11-28 02:08:14,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383496406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:14,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:14,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:14,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935366171] [2024-11-28 02:08:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:14,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:14,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:14,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:14,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:14,632 INFO L87 Difference]: Start difference. First operand 3411 states and 5390 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:15,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:15,273 INFO L93 Difference]: Finished difference Result 7306 states and 11798 transitions. [2024-11-28 02:08:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:15,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:15,301 INFO L225 Difference]: With dead ends: 7306 [2024-11-28 02:08:15,301 INFO L226 Difference]: Without dead ends: 3909 [2024-11-28 02:08:15,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:15,313 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 388 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:15,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 550 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:08:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3909 states. [2024-11-28 02:08:15,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3909 to 3411. [2024-11-28 02:08:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3007 states have (on average 1.5453940804788826) internal successors, (4647), 3074 states have internal predecessors, (4647), 235 states have call successors, (235), 102 states have call predecessors, (235), 168 states have return successors, (491), 250 states have call predecessors, (491), 235 states have call successors, (491) [2024-11-28 02:08:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 5373 transitions. [2024-11-28 02:08:15,773 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 5373 transitions. Word has length 99 [2024-11-28 02:08:15,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:15,774 INFO L471 AbstractCegarLoop]: Abstraction has 3411 states and 5373 transitions. [2024-11-28 02:08:15,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 5373 transitions. [2024-11-28 02:08:15,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:15,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:15,779 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:15,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:08:15,780 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:15,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash 632755807, now seen corresponding path program 1 times [2024-11-28 02:08:15,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:15,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641144399] [2024-11-28 02:08:15,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:15,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:15,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641144399] [2024-11-28 02:08:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641144399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048253668] [2024-11-28 02:08:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:15,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:15,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:15,935 INFO L87 Difference]: Start difference. First operand 3411 states and 5373 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:16,721 INFO L93 Difference]: Finished difference Result 7223 states and 11598 transitions. [2024-11-28 02:08:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:16,745 INFO L225 Difference]: With dead ends: 7223 [2024-11-28 02:08:16,745 INFO L226 Difference]: Without dead ends: 3826 [2024-11-28 02:08:16,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:16,756 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 385 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:16,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 542 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:08:16,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2024-11-28 02:08:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 3411. [2024-11-28 02:08:17,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3007 states have (on average 1.5397406052544065) internal successors, (4630), 3074 states have internal predecessors, (4630), 235 states have call successors, (235), 102 states have call predecessors, (235), 168 states have return successors, (491), 250 states have call predecessors, (491), 235 states have call successors, (491) [2024-11-28 02:08:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 5356 transitions. [2024-11-28 02:08:17,206 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 5356 transitions. Word has length 99 [2024-11-28 02:08:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:17,207 INFO L471 AbstractCegarLoop]: Abstraction has 3411 states and 5356 transitions. [2024-11-28 02:08:17,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 5356 transitions. [2024-11-28 02:08:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:17,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:17,211 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:17,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:08:17,212 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:17,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1928107039, now seen corresponding path program 1 times [2024-11-28 02:08:17,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:17,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474170842] [2024-11-28 02:08:17,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:17,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:17,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:17,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474170842] [2024-11-28 02:08:17,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474170842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:17,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:17,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:17,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387800084] [2024-11-28 02:08:17,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:17,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:17,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:17,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:17,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:17,379 INFO L87 Difference]: Start difference. First operand 3411 states and 5356 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:18,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:18,825 INFO L93 Difference]: Finished difference Result 10712 states and 17241 transitions. [2024-11-28 02:08:18,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:08:18,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:18,889 INFO L225 Difference]: With dead ends: 10712 [2024-11-28 02:08:18,889 INFO L226 Difference]: Without dead ends: 7315 [2024-11-28 02:08:18,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:08:18,902 INFO L435 NwaCegarLoop]: 356 mSDtfsCounter, 577 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:18,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1415 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:08:18,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2024-11-28 02:08:19,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 6872. [2024-11-28 02:08:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6872 states, 6026 states have (on average 1.5443079986724195) internal successors, (9306), 6239 states have internal predecessors, (9306), 435 states have call successors, (435), 198 states have call predecessors, (435), 410 states have return successors, (1459), 466 states have call predecessors, (1459), 435 states have call successors, (1459) [2024-11-28 02:08:20,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6872 states to 6872 states and 11200 transitions. [2024-11-28 02:08:20,052 INFO L78 Accepts]: Start accepts. Automaton has 6872 states and 11200 transitions. Word has length 99 [2024-11-28 02:08:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:20,052 INFO L471 AbstractCegarLoop]: Abstraction has 6872 states and 11200 transitions. [2024-11-28 02:08:20,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6872 states and 11200 transitions. [2024-11-28 02:08:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:20,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:20,063 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:20,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:08:20,064 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:20,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1040884193, now seen corresponding path program 1 times [2024-11-28 02:08:20,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:20,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285908368] [2024-11-28 02:08:20,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:20,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:20,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:20,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:20,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285908368] [2024-11-28 02:08:20,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285908368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:20,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:20,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:20,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640310784] [2024-11-28 02:08:20,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:20,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:20,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:20,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:20,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:20,246 INFO L87 Difference]: Start difference. First operand 6872 states and 11200 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:22,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:22,332 INFO L93 Difference]: Finished difference Result 21107 states and 35935 transitions. [2024-11-28 02:08:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:08:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:22,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:22,420 INFO L225 Difference]: With dead ends: 21107 [2024-11-28 02:08:22,421 INFO L226 Difference]: Without dead ends: 14249 [2024-11-28 02:08:22,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:08:22,445 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 509 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:22,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1389 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:08:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14249 states. [2024-11-28 02:08:24,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14249 to 13908. [2024-11-28 02:08:24,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13908 states, 12032 states have (on average 1.5332446808510638) internal successors, (18448), 12699 states have internal predecessors, (18448), 819 states have call successors, (819), 390 states have call predecessors, (819), 1056 states have return successors, (4915), 882 states have call predecessors, (4915), 819 states have call successors, (4915) [2024-11-28 02:08:24,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13908 states to 13908 states and 24182 transitions. [2024-11-28 02:08:24,627 INFO L78 Accepts]: Start accepts. Automaton has 13908 states and 24182 transitions. Word has length 99 [2024-11-28 02:08:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:24,627 INFO L471 AbstractCegarLoop]: Abstraction has 13908 states and 24182 transitions. [2024-11-28 02:08:24,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 13908 states and 24182 transitions. [2024-11-28 02:08:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:24,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:24,638 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:24,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:08:24,640 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:24,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:24,641 INFO L85 PathProgramCache]: Analyzing trace with hash -963983395, now seen corresponding path program 1 times [2024-11-28 02:08:24,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:24,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734968375] [2024-11-28 02:08:24,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:24,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:24,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734968375] [2024-11-28 02:08:24,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734968375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:24,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:24,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:24,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113075653] [2024-11-28 02:08:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:24,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:24,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:24,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:24,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:24,732 INFO L87 Difference]: Start difference. First operand 13908 states and 24182 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:25,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:25,897 INFO L93 Difference]: Finished difference Result 27996 states and 49027 transitions. [2024-11-28 02:08:25,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:25,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:25,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:25,974 INFO L225 Difference]: With dead ends: 27996 [2024-11-28 02:08:25,974 INFO L226 Difference]: Without dead ends: 14103 [2024-11-28 02:08:26,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:26,015 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 0 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:26,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1194 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14103 states. [2024-11-28 02:08:27,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14103 to 14103. [2024-11-28 02:08:27,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14103 states, 12227 states have (on average 1.5247403287805676) internal successors, (18643), 12894 states have internal predecessors, (18643), 819 states have call successors, (819), 390 states have call predecessors, (819), 1056 states have return successors, (4915), 882 states have call predecessors, (4915), 819 states have call successors, (4915) [2024-11-28 02:08:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14103 states to 14103 states and 24377 transitions. [2024-11-28 02:08:27,959 INFO L78 Accepts]: Start accepts. Automaton has 14103 states and 24377 transitions. Word has length 99 [2024-11-28 02:08:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:27,960 INFO L471 AbstractCegarLoop]: Abstraction has 14103 states and 24377 transitions. [2024-11-28 02:08:27,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 14103 states and 24377 transitions. [2024-11-28 02:08:27,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:27,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:27,975 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:27,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:08:27,975 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:27,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:27,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1381380001, now seen corresponding path program 1 times [2024-11-28 02:08:27,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:27,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703217422] [2024-11-28 02:08:27,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:27,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:28,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:28,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703217422] [2024-11-28 02:08:28,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703217422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:28,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:28,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:28,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048439808] [2024-11-28 02:08:28,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:28,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:28,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:28,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:28,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:28,070 INFO L87 Difference]: Start difference. First operand 14103 states and 24377 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:30,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:30,953 INFO L93 Difference]: Finished difference Result 41953 states and 72926 transitions. [2024-11-28 02:08:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:30,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:31,108 INFO L225 Difference]: With dead ends: 41953 [2024-11-28 02:08:31,109 INFO L226 Difference]: Without dead ends: 27865 [2024-11-28 02:08:31,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:31,282 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 525 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:31,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1055 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:08:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27865 states. [2024-11-28 02:08:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27865 to 27798. [2024-11-28 02:08:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27798 states, 24116 states have (on average 1.5211063194559629) internal successors, (36683), 25449 states have internal predecessors, (36683), 1569 states have call successors, (1569), 780 states have call predecessors, (1569), 2112 states have return successors, (9698), 1632 states have call predecessors, (9698), 1569 states have call successors, (9698) [2024-11-28 02:08:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27798 states to 27798 states and 47950 transitions. [2024-11-28 02:08:33,878 INFO L78 Accepts]: Start accepts. Automaton has 27798 states and 47950 transitions. Word has length 99 [2024-11-28 02:08:33,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:33,878 INFO L471 AbstractCegarLoop]: Abstraction has 27798 states and 47950 transitions. [2024-11-28 02:08:33,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:33,879 INFO L276 IsEmpty]: Start isEmpty. Operand 27798 states and 47950 transitions. [2024-11-28 02:08:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:33,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:33,893 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:33,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:08:33,893 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:33,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:33,894 INFO L85 PathProgramCache]: Analyzing trace with hash -352847840, now seen corresponding path program 1 times [2024-11-28 02:08:33,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:33,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785744442] [2024-11-28 02:08:33,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:33,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:34,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:34,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785744442] [2024-11-28 02:08:34,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785744442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:34,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:34,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:34,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611371823] [2024-11-28 02:08:34,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:34,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:34,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:34,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:34,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:34,007 INFO L87 Difference]: Start difference. First operand 27798 states and 47950 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:37,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:37,182 INFO L93 Difference]: Finished difference Result 55776 states and 96923 transitions. [2024-11-28 02:08:37,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:37,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:37,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:37,335 INFO L225 Difference]: With dead ends: 55776 [2024-11-28 02:08:37,335 INFO L226 Difference]: Without dead ends: 27993 [2024-11-28 02:08:37,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:37,408 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 0 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:37,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1194 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:37,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27993 states. [2024-11-28 02:08:40,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27993 to 27993. [2024-11-28 02:08:40,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27993 states, 24311 states have (on average 1.5142528073711488) internal successors, (36813), 25644 states have internal predecessors, (36813), 1569 states have call successors, (1569), 780 states have call predecessors, (1569), 2112 states have return successors, (9698), 1632 states have call predecessors, (9698), 1569 states have call successors, (9698) [2024-11-28 02:08:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27993 states to 27993 states and 48080 transitions. [2024-11-28 02:08:40,464 INFO L78 Accepts]: Start accepts. Automaton has 27993 states and 48080 transitions. Word has length 99 [2024-11-28 02:08:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:40,464 INFO L471 AbstractCegarLoop]: Abstraction has 27993 states and 48080 transitions. [2024-11-28 02:08:40,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 27993 states and 48080 transitions. [2024-11-28 02:08:40,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:40,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:40,473 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:40,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:08:40,474 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:40,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:40,474 INFO L85 PathProgramCache]: Analyzing trace with hash 908069410, now seen corresponding path program 1 times [2024-11-28 02:08:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:40,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021795016] [2024-11-28 02:08:40,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:40,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:40,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021795016] [2024-11-28 02:08:40,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021795016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:40,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:40,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:40,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558478193] [2024-11-28 02:08:40,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:40,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:40,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:40,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:40,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:40,555 INFO L87 Difference]: Start difference. First operand 27993 states and 48080 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:42,697 INFO L93 Difference]: Finished difference Result 56361 states and 97443 transitions. [2024-11-28 02:08:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:42,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:42,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:42,845 INFO L225 Difference]: With dead ends: 56361 [2024-11-28 02:08:42,845 INFO L226 Difference]: Without dead ends: 28383 [2024-11-28 02:08:43,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:43,141 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 0 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:43,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1194 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28383 states. [2024-11-28 02:08:46,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28383 to 28383. [2024-11-28 02:08:46,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28383 states, 24701 states have (on average 1.5061333549249019) internal successors, (37203), 26034 states have internal predecessors, (37203), 1569 states have call successors, (1569), 780 states have call predecessors, (1569), 2112 states have return successors, (9698), 1632 states have call predecessors, (9698), 1569 states have call successors, (9698) [2024-11-28 02:08:46,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28383 states to 28383 states and 48470 transitions. [2024-11-28 02:08:46,439 INFO L78 Accepts]: Start accepts. Automaton has 28383 states and 48470 transitions. Word has length 99 [2024-11-28 02:08:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:46,439 INFO L471 AbstractCegarLoop]: Abstraction has 28383 states and 48470 transitions. [2024-11-28 02:08:46,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 28383 states and 48470 transitions. [2024-11-28 02:08:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:08:46,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:46,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:46,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:08:46,652 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:46,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1120516700, now seen corresponding path program 1 times [2024-11-28 02:08:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:46,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564048270] [2024-11-28 02:08:46,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:46,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:46,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:46,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564048270] [2024-11-28 02:08:46,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564048270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:46,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:46,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:46,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272025106] [2024-11-28 02:08:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:46,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:46,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:46,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:46,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:46,709 INFO L87 Difference]: Start difference. First operand 28383 states and 48470 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:08:50,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:50,504 INFO L93 Difference]: Finished difference Result 84468 states and 145045 transitions. [2024-11-28 02:08:50,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:50,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-11-28 02:08:50,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:50,876 INFO L225 Difference]: With dead ends: 84468 [2024-11-28 02:08:50,876 INFO L226 Difference]: Without dead ends: 56100 [2024-11-28 02:08:50,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:50,955 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 537 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:50,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1055 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:08:50,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56100 states.