./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.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_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/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_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/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_47aa8016-1555-470b-9d3d-922925f1ed41/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 7889f6823684efa4d90d392ed393927ee5c2d2eb45f6dbf47b7c030213ef334f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:21,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:21,171 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:13:21,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:21,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:21,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:21,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:21,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:21,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:21,220 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:21,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:13:21,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:13:21,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:21,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:21,223 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:21,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:21,224 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:13:21,224 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:13:21,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:13:21,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:13:21,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:21,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:13:21,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:13:21,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:13:21,225 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:13:21,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:21,225 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:21,226 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:21,226 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:13:21,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:21,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:21,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:21,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:21,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:21,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:21,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:21,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:21,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:21,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:21,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:13:21,228 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:13:21,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:13:21,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:13:21,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:13:21,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:13:21,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:13:21,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:13:21,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:13:21,229 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_47aa8016-1555-470b-9d3d-922925f1ed41/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 -> 7889f6823684efa4d90d392ed393927ee5c2d2eb45f6dbf47b7c030213ef334f [2024-11-28 02:13:21,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:21,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:21,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:21,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:21,552 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:21,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c [2024-11-28 02:13:24,461 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/data/d22edea0e/a4b85c041b6845d2befe5549da3e4291/FLAG47fab88e7 [2024-11-28 02:13:24,817 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:24,822 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c [2024-11-28 02:13:24,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/data/d22edea0e/a4b85c041b6845d2befe5549da3e4291/FLAG47fab88e7 [2024-11-28 02:13:24,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/data/d22edea0e/a4b85c041b6845d2befe5549da3e4291 [2024-11-28 02:13:24,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:24,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:24,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:24,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:24,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:24,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:24" (1/1) ... [2024-11-28 02:13:24,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc80ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:24, skipping insertion in model container [2024-11-28 02:13:24,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:24" (1/1) ... [2024-11-28 02:13:24,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:25,137 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_47aa8016-1555-470b-9d3d-922925f1ed41/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c[914,927] [2024-11-28 02:13:25,201 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_47aa8016-1555-470b-9d3d-922925f1ed41/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c[7115,7128] [2024-11-28 02:13:25,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:25,334 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:13:25,348 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_47aa8016-1555-470b-9d3d-922925f1ed41/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c[914,927] [2024-11-28 02:13:25,371 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_47aa8016-1555-470b-9d3d-922925f1ed41/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c[7115,7128] [2024-11-28 02:13:25,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:25,469 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:13:25,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25 WrapperNode [2024-11-28 02:13:25,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:25,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:25,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:13:25,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:13:25,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,541 INFO L138 Inliner]: procedures = 69, calls = 81, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 813 [2024-11-28 02:13:25,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:25,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:13:25,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:13:25,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:13:25,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,555 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,573 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 02:13:25,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,573 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,585 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:13:25,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:13:25,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:13:25,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:13:25,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (1/1) ... [2024-11-28 02:13:25,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:25,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:25,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:25,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 02:13:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 02:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-28 02:13:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-28 02:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-28 02:13:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-28 02:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-28 02:13:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-28 02:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-28 02:13:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-28 02:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-28 02:13:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-28 02:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-28 02:13:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-28 02:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-28 02:13:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-28 02:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-28 02:13:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-28 02:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-28 02:13:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-28 02:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-28 02:13:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-28 02:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-28 02:13:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-28 02:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-28 02:13:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-28 02:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:13:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-28 02:13:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-28 02:13:25,811 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:13:25,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:13:27,003 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-28 02:13:27,003 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:13:27,036 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:13:27,036 INFO L312 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-28 02:13:27,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:27 BoogieIcfgContainer [2024-11-28 02:13:27,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:13:27,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:13:27,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:13:27,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:13:27,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:13:24" (1/3) ... [2024-11-28 02:13:27,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5c80d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:27, skipping insertion in model container [2024-11-28 02:13:27,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:25" (2/3) ... [2024-11-28 02:13:27,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5c80d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:27, skipping insertion in model container [2024-11-28 02:13:27,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:27" (3/3) ... [2024-11-28 02:13:27,051 INFO L128 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.08.cil-1.c [2024-11-28 02:13:27,068 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:13:27,071 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_2.cil-1+token_ring.08.cil-1.c that has 15 procedures, 377 locations, 1 initial locations, 15 loop locations, and 2 error locations. [2024-11-28 02:13:27,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:13:27,179 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;@dd6e0d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:13:27,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:13:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 326 states have (on average 1.6226993865030674) internal successors, (529), 330 states have internal predecessors, (529), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:13:27,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:13:27,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:27,198 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] [2024-11-28 02:13:27,200 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:27,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1957141572, now seen corresponding path program 1 times [2024-11-28 02:13:27,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:27,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303931426] [2024-11-28 02:13:27,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:27,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:27,888 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 02:13:27,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303931426] [2024-11-28 02:13:27,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303931426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:27,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:27,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:27,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670284922] [2024-11-28 02:13:27,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:27,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:13:27,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:27,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:13:27,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:27,931 INFO L87 Difference]: Start difference. First operand has 377 states, 326 states have (on average 1.6226993865030674) internal successors, (529), 330 states have internal predecessors, (529), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:13:29,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:29,123 INFO L93 Difference]: Finished difference Result 829 states and 1318 transitions. [2024-11-28 02:13:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:13:29,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-28 02:13:29,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:29,147 INFO L225 Difference]: With dead ends: 829 [2024-11-28 02:13:29,150 INFO L226 Difference]: Without dead ends: 466 [2024-11-28 02:13:29,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 02:13:29,163 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 396 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:29,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1196 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:13:29,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-28 02:13:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 459. [2024-11-28 02:13:29,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 388 states have (on average 1.5154639175257731) internal successors, (588), 394 states have internal predecessors, (588), 47 states have call successors, (47), 21 states have call predecessors, (47), 22 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2024-11-28 02:13:29,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 685 transitions. [2024-11-28 02:13:29,260 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 685 transitions. Word has length 62 [2024-11-28 02:13:29,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:29,261 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 685 transitions. [2024-11-28 02:13:29,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:13:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 685 transitions. [2024-11-28 02:13:29,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:13:29,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:29,267 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] [2024-11-28 02:13:29,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:13:29,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:29,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:29,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1675302853, now seen corresponding path program 1 times [2024-11-28 02:13:29,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:29,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916068196] [2024-11-28 02:13:29,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:29,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:29,620 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 02:13:29,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:29,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916068196] [2024-11-28 02:13:29,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916068196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:29,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:29,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:29,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585113141] [2024-11-28 02:13:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:29,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:29,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:29,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:29,626 INFO L87 Difference]: Start difference. First operand 459 states and 685 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:13:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:30,761 INFO L93 Difference]: Finished difference Result 764 states and 1104 transitions. [2024-11-28 02:13:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:13:30,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-28 02:13:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:30,770 INFO L225 Difference]: With dead ends: 764 [2024-11-28 02:13:30,770 INFO L226 Difference]: Without dead ends: 595 [2024-11-28 02:13:30,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 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 02:13:30,776 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 839 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:30,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 1219 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:13:30,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-28 02:13:30,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 551. [2024-11-28 02:13:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 460 states have (on average 1.4956521739130435) internal successors, (688), 468 states have internal predecessors, (688), 58 states have call successors, (58), 28 states have call predecessors, (58), 31 states have return successors, (69), 58 states have call predecessors, (69), 56 states have call successors, (69) [2024-11-28 02:13:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 815 transitions. [2024-11-28 02:13:30,874 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 815 transitions. Word has length 62 [2024-11-28 02:13:30,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:30,875 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 815 transitions. [2024-11-28 02:13:30,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:13:30,876 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 815 transitions. [2024-11-28 02:13:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:13:30,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:30,883 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] [2024-11-28 02:13:30,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:13:30,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:30,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:30,887 INFO L85 PathProgramCache]: Analyzing trace with hash -680502397, now seen corresponding path program 1 times [2024-11-28 02:13:30,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:30,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581079394] [2024-11-28 02:13:30,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:30,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:31,037 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 02:13:31,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:31,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581079394] [2024-11-28 02:13:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581079394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:31,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:31,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:31,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945277901] [2024-11-28 02:13:31,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:31,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:31,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:31,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:31,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:31,039 INFO L87 Difference]: Start difference. First operand 551 states and 815 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:13:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:31,113 INFO L93 Difference]: Finished difference Result 811 states and 1176 transitions. [2024-11-28 02:13:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:13:31,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-11-28 02:13:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:31,118 INFO L225 Difference]: With dead ends: 811 [2024-11-28 02:13:31,118 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 02:13:31,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 02:13:31,120 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 0 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:31,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2765 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:31,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 02:13:31,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-28 02:13:31,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 464 states have (on average 1.4870689655172413) internal successors, (690), 472 states have internal predecessors, (690), 58 states have call successors, (58), 28 states have call predecessors, (58), 32 states have return successors, (70), 59 states have call predecessors, (70), 56 states have call successors, (70) [2024-11-28 02:13:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 818 transitions. [2024-11-28 02:13:31,170 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 818 transitions. Word has length 62 [2024-11-28 02:13:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:31,170 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 818 transitions. [2024-11-28 02:13:31,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:13:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 818 transitions. [2024-11-28 02:13:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:13:31,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:31,173 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] [2024-11-28 02:13:31,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:13:31,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:31,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:31,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1524507899, now seen corresponding path program 1 times [2024-11-28 02:13:31,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:31,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910625777] [2024-11-28 02:13:31,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:31,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:31,300 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 02:13:31,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:31,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910625777] [2024-11-28 02:13:31,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910625777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:31,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:31,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:31,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143736102] [2024-11-28 02:13:31,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:31,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:31,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:31,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:31,302 INFO L87 Difference]: Start difference. First operand 556 states and 818 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 02:13:32,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:32,212 INFO L93 Difference]: Finished difference Result 2482 states and 3502 transitions. [2024-11-28 02:13:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:13:32,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2024-11-28 02:13:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:32,226 INFO L225 Difference]: With dead ends: 2482 [2024-11-28 02:13:32,226 INFO L226 Difference]: Without dead ends: 2222 [2024-11-28 02:13:32,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:13:32,228 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 1638 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:32,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 2223 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:13:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2024-11-28 02:13:32,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2092. [2024-11-28 02:13:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 1661 states have (on average 1.3732691149909693) internal successors, (2281), 1697 states have internal predecessors, (2281), 223 states have call successors, (223), 172 states have call predecessors, (223), 206 states have return successors, (339), 226 states have call predecessors, (339), 221 states have call successors, (339) [2024-11-28 02:13:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2843 transitions. [2024-11-28 02:13:32,487 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2843 transitions. Word has length 62 [2024-11-28 02:13:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:32,488 INFO L471 AbstractCegarLoop]: Abstraction has 2092 states and 2843 transitions. [2024-11-28 02:13:32,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 02:13:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2843 transitions. [2024-11-28 02:13:32,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:13:32,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:32,491 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] [2024-11-28 02:13:32,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:13:32,492 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:32,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:32,493 INFO L85 PathProgramCache]: Analyzing trace with hash -605533276, now seen corresponding path program 1 times [2024-11-28 02:13:32,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:32,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998221486] [2024-11-28 02:13:32,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:32,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:32,606 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 02:13:32,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:32,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998221486] [2024-11-28 02:13:32,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998221486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:32,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:32,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:32,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348250704] [2024-11-28 02:13:32,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:32,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:32,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:32,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:32,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:32,609 INFO L87 Difference]: Start difference. First operand 2092 states and 2843 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:13:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:32,806 INFO L93 Difference]: Finished difference Result 3933 states and 5334 transitions. [2024-11-28 02:13:32,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:13:32,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-11-28 02:13:32,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:32,819 INFO L225 Difference]: With dead ends: 3933 [2024-11-28 02:13:32,820 INFO L226 Difference]: Without dead ends: 2137 [2024-11-28 02:13:32,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 02:13:32,827 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 0 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:32,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2765 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:32,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2024-11-28 02:13:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2137. [2024-11-28 02:13:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 1697 states have (on average 1.3565114908662346) internal successors, (2302), 1733 states have internal predecessors, (2302), 223 states have call successors, (223), 172 states have call predecessors, (223), 215 states have return successors, (357), 235 states have call predecessors, (357), 221 states have call successors, (357) [2024-11-28 02:13:33,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 2882 transitions. [2024-11-28 02:13:33,063 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 2882 transitions. Word has length 62 [2024-11-28 02:13:33,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:33,064 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 2882 transitions. [2024-11-28 02:13:33,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:13:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 2882 transitions. [2024-11-28 02:13:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:13:33,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:33,070 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] [2024-11-28 02:13:33,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:13:33,070 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:33,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:33,071 INFO L85 PathProgramCache]: Analyzing trace with hash -543493662, now seen corresponding path program 1 times [2024-11-28 02:13:33,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:33,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590875136] [2024-11-28 02:13:33,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:33,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:33,174 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 02:13:33,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:33,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590875136] [2024-11-28 02:13:33,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590875136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:33,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:33,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:33,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935471694] [2024-11-28 02:13:33,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:33,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:33,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:33,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:33,176 INFO L87 Difference]: Start difference. First operand 2137 states and 2882 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:13:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:34,097 INFO L93 Difference]: Finished difference Result 5746 states and 7674 transitions. [2024-11-28 02:13:34,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:13:34,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-28 02:13:34,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:34,123 INFO L225 Difference]: With dead ends: 5746 [2024-11-28 02:13:34,124 INFO L226 Difference]: Without dead ends: 3908 [2024-11-28 02:13:34,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:34,131 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 777 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:34,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 597 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:13:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2024-11-28 02:13:34,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3904. [2024-11-28 02:13:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3049 states have (on average 1.3096097081010167) internal successors, (3993), 3120 states have internal predecessors, (3993), 424 states have call successors, (424), 337 states have call predecessors, (424), 429 states have return successors, (751), 453 states have call predecessors, (751), 422 states have call successors, (751) [2024-11-28 02:13:34,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 5168 transitions. [2024-11-28 02:13:34,522 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 5168 transitions. Word has length 62 [2024-11-28 02:13:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:34,524 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 5168 transitions. [2024-11-28 02:13:34,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:13:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 5168 transitions. [2024-11-28 02:13:34,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:13:34,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:34,528 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] [2024-11-28 02:13:34,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:13:34,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:34,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:34,529 INFO L85 PathProgramCache]: Analyzing trace with hash -760971986, now seen corresponding path program 1 times [2024-11-28 02:13:34,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:34,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633090295] [2024-11-28 02:13:34,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:34,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:34,581 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 02:13:34,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:34,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633090295] [2024-11-28 02:13:34,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633090295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:34,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:34,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:13:34,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759164802] [2024-11-28 02:13:34,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:34,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:13:34,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:34,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:13:34,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:13:34,583 INFO L87 Difference]: Start difference. First operand 3904 states and 5168 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:13:35,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:35,038 INFO L93 Difference]: Finished difference Result 9829 states and 13026 transitions. [2024-11-28 02:13:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:13:35,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-28 02:13:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:35,075 INFO L225 Difference]: With dead ends: 9829 [2024-11-28 02:13:35,076 INFO L226 Difference]: Without dead ends: 6203 [2024-11-28 02:13:35,086 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 02:13:35,086 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 102 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:35,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1090 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:35,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6203 states. [2024-11-28 02:13:35,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6203 to 6049. [2024-11-28 02:13:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6049 states, 4666 states have (on average 1.2946849549935706) internal successors, (6041), 4752 states have internal predecessors, (6041), 683 states have call successors, (683), 567 states have call predecessors, (683), 698 states have return successors, (1203), 736 states have call predecessors, (1203), 681 states have call successors, (1203) [2024-11-28 02:13:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6049 states to 6049 states and 7927 transitions. [2024-11-28 02:13:35,802 INFO L78 Accepts]: Start accepts. Automaton has 6049 states and 7927 transitions. Word has length 63 [2024-11-28 02:13:35,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:35,802 INFO L471 AbstractCegarLoop]: Abstraction has 6049 states and 7927 transitions. [2024-11-28 02:13:35,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:13:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 6049 states and 7927 transitions. [2024-11-28 02:13:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 02:13:35,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:35,808 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] [2024-11-28 02:13:35,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:13:35,809 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:35,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:35,809 INFO L85 PathProgramCache]: Analyzing trace with hash 387304490, now seen corresponding path program 1 times [2024-11-28 02:13:35,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:35,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064414957] [2024-11-28 02:13:35,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:35,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:36,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064414957] [2024-11-28 02:13:36,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064414957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:36,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:36,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:36,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466093540] [2024-11-28 02:13:36,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:36,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:36,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:36,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:36,010 INFO L87 Difference]: Start difference. First operand 6049 states and 7927 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 02:13:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:36,844 INFO L93 Difference]: Finished difference Result 7185 states and 9336 transitions. [2024-11-28 02:13:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:36,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2024-11-28 02:13:36,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:36,885 INFO L225 Difference]: With dead ends: 7185 [2024-11-28 02:13:36,886 INFO L226 Difference]: Without dead ends: 7182 [2024-11-28 02:13:36,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:36,892 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 1037 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:36,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 653 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:13:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7182 states. [2024-11-28 02:13:37,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7182 to 7083. [2024-11-28 02:13:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7083 states, 5443 states have (on average 1.2847694286239206) internal successors, (6993), 5542 states have internal predecessors, (6993), 809 states have call successors, (809), 681 states have call predecessors, (809), 829 states have return successors, (1406), 866 states have call predecessors, (1406), 808 states have call successors, (1406) [2024-11-28 02:13:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7083 states to 7083 states and 9208 transitions. [2024-11-28 02:13:37,647 INFO L78 Accepts]: Start accepts. Automaton has 7083 states and 9208 transitions. Word has length 68 [2024-11-28 02:13:37,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:37,648 INFO L471 AbstractCegarLoop]: Abstraction has 7083 states and 9208 transitions. [2024-11-28 02:13:37,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 02:13:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 7083 states and 9208 transitions. [2024-11-28 02:13:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:13:37,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:37,653 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] [2024-11-28 02:13:37,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:13:37,654 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:37,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:37,654 INFO L85 PathProgramCache]: Analyzing trace with hash -879590515, now seen corresponding path program 1 times [2024-11-28 02:13:37,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:37,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331327430] [2024-11-28 02:13:37,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:37,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:37,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:37,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331327430] [2024-11-28 02:13:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331327430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:37,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498563223] [2024-11-28 02:13:37,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:37,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:37,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:37,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:13:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:38,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:13:38,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:38,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:13:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:38,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498563223] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:13:38,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:13:38,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-28 02:13:38,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105649555] [2024-11-28 02:13:38,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:13:38,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:13:38,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:38,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:13:38,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:13:38,613 INFO L87 Difference]: Start difference. First operand 7083 states and 9208 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 02:13:40,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:40,347 INFO L93 Difference]: Finished difference Result 14923 states and 19207 transitions. [2024-11-28 02:13:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:13:40,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 69 [2024-11-28 02:13:40,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:40,449 INFO L225 Difference]: With dead ends: 14923 [2024-11-28 02:13:40,449 INFO L226 Difference]: Without dead ends: 14920 [2024-11-28 02:13:40,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:13:40,459 INFO L435 NwaCegarLoop]: 738 mSDtfsCounter, 848 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:40,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 2770 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:13:40,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14920 states. [2024-11-28 02:13:41,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14920 to 13588. [2024-11-28 02:13:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13588 states, 10426 states have (on average 1.2771916362938807) internal successors, (13316), 10615 states have internal predecessors, (13316), 1537 states have call successors, (1537), 1311 states have call predecessors, (1537), 1623 states have return successors, (2707), 1668 states have call predecessors, (2707), 1536 states have call successors, (2707) [2024-11-28 02:13:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13588 states to 13588 states and 17560 transitions. [2024-11-28 02:13:41,799 INFO L78 Accepts]: Start accepts. Automaton has 13588 states and 17560 transitions. Word has length 69 [2024-11-28 02:13:41,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:41,801 INFO L471 AbstractCegarLoop]: Abstraction has 13588 states and 17560 transitions. [2024-11-28 02:13:41,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 02:13:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13588 states and 17560 transitions. [2024-11-28 02:13:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:13:41,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:41,806 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:41,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:13:42,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:42,010 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:42,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1227194805, now seen corresponding path program 2 times [2024-11-28 02:13:42,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:42,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895564457] [2024-11-28 02:13:42,011 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:13:42,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:42,031 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:13:42,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:13:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:42,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:42,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895564457] [2024-11-28 02:13:42,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895564457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:42,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:42,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:13:42,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851707111] [2024-11-28 02:13:42,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:42,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:13:42,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:42,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:13:42,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:13:42,069 INFO L87 Difference]: Start difference. First operand 13588 states and 17560 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 02:13:42,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:42,980 INFO L93 Difference]: Finished difference Result 20362 states and 26377 transitions. [2024-11-28 02:13:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:13:42,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2024-11-28 02:13:42,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:43,028 INFO L225 Difference]: With dead ends: 20362 [2024-11-28 02:13:43,028 INFO L226 Difference]: Without dead ends: 7906 [2024-11-28 02:13:43,065 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 02:13:43,066 INFO L435 NwaCegarLoop]: 630 mSDtfsCounter, 526 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:43,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 743 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:43,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7906 states. [2024-11-28 02:13:44,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7906 to 7808. [2024-11-28 02:13:44,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 6015 states have (on average 1.255361596009975) internal successors, (7551), 6124 states have internal predecessors, (7551), 877 states have call successors, (877), 739 states have call predecessors, (877), 914 states have return successors, (1453), 951 states have call predecessors, (1453), 876 states have call successors, (1453) [2024-11-28 02:13:44,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 9881 transitions. [2024-11-28 02:13:44,201 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 9881 transitions. Word has length 71 [2024-11-28 02:13:44,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:44,201 INFO L471 AbstractCegarLoop]: Abstraction has 7808 states and 9881 transitions. [2024-11-28 02:13:44,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 02:13:44,202 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 9881 transitions. [2024-11-28 02:13:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 02:13:44,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:44,207 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, 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 02:13:44,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:13:44,207 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:44,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:44,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1592055150, now seen corresponding path program 1 times [2024-11-28 02:13:44,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:44,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813207487] [2024-11-28 02:13:44,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:44,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:44,378 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 02:13:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:44,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813207487] [2024-11-28 02:13:44,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813207487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:44,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:44,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121109533] [2024-11-28 02:13:44,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:44,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:44,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:44,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:44,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:44,380 INFO L87 Difference]: Start difference. First operand 7808 states and 9881 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:13:46,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:46,833 INFO L93 Difference]: Finished difference Result 23072 states and 29172 transitions. [2024-11-28 02:13:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:13:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 80 [2024-11-28 02:13:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:46,922 INFO L225 Difference]: With dead ends: 23072 [2024-11-28 02:13:46,922 INFO L226 Difference]: Without dead ends: 15566 [2024-11-28 02:13:46,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:13:46,949 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 681 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:46,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1584 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:13:46,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15566 states. [2024-11-28 02:13:48,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15566 to 14977. [2024-11-28 02:13:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14977 states, 11413 states have (on average 1.2230789450626478) internal successors, (13959), 11664 states have internal predecessors, (13959), 1716 states have call successors, (1716), 1457 states have call predecessors, (1716), 1846 states have return successors, (3100), 1868 states have call predecessors, (3100), 1715 states have call successors, (3100) [2024-11-28 02:13:48,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14977 states to 14977 states and 18775 transitions. [2024-11-28 02:13:48,383 INFO L78 Accepts]: Start accepts. Automaton has 14977 states and 18775 transitions. Word has length 80 [2024-11-28 02:13:48,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:48,383 INFO L471 AbstractCegarLoop]: Abstraction has 14977 states and 18775 transitions. [2024-11-28 02:13:48,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:13:48,384 INFO L276 IsEmpty]: Start isEmpty. Operand 14977 states and 18775 transitions. [2024-11-28 02:13:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:13:48,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:48,391 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:48,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:13:48,391 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:48,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash -242756562, now seen corresponding path program 1 times [2024-11-28 02:13:48,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:48,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354642373] [2024-11-28 02:13:48,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:48,616 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:13:48,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:48,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354642373] [2024-11-28 02:13:48,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354642373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:48,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:48,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:13:48,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581701027] [2024-11-28 02:13:48,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:48,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:13:48,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:48,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:13:48,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:13:48,619 INFO L87 Difference]: Start difference. First operand 14977 states and 18775 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:13:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:51,213 INFO L93 Difference]: Finished difference Result 26661 states and 33281 transitions. [2024-11-28 02:13:51,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 02:13:51,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-11-28 02:13:51,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:51,284 INFO L225 Difference]: With dead ends: 26661 [2024-11-28 02:13:51,284 INFO L226 Difference]: Without dead ends: 12601 [2024-11-28 02:13:51,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:13:51,324 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 1417 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:51,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 1652 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:13:51,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12601 states. [2024-11-28 02:13:52,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12601 to 11839. [2024-11-28 02:13:52,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11839 states, 9091 states have (on average 1.2111978880211198) internal successors, (11011), 9251 states have internal predecessors, (11011), 1337 states have call successors, (1337), 1131 states have call predecessors, (1337), 1409 states have return successors, (2156), 1466 states have call predecessors, (2156), 1336 states have call successors, (2156) [2024-11-28 02:13:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11839 states to 11839 states and 14504 transitions. [2024-11-28 02:13:52,499 INFO L78 Accepts]: Start accepts. Automaton has 11839 states and 14504 transitions. Word has length 86 [2024-11-28 02:13:52,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:52,500 INFO L471 AbstractCegarLoop]: Abstraction has 11839 states and 14504 transitions. [2024-11-28 02:13:52,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:13:52,500 INFO L276 IsEmpty]: Start isEmpty. Operand 11839 states and 14504 transitions. [2024-11-28 02:13:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:13:52,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:52,512 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 02:13:52,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:13:52,513 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:52,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:52,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1947818615, now seen corresponding path program 1 times [2024-11-28 02:13:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:52,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804158552] [2024-11-28 02:13:52,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:52,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 17 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-28 02:13:52,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:52,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804158552] [2024-11-28 02:13:52,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804158552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:52,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644017959] [2024-11-28 02:13:52,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:52,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:52,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:52,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:52,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:13:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:52,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:13:52,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:52,890 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:13:52,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:13:52,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644017959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:52,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:13:52,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-28 02:13:52,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905399977] [2024-11-28 02:13:52,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:52,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:52,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:52,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:52,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:13:52,892 INFO L87 Difference]: Start difference. First operand 11839 states and 14504 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:13:53,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:53,624 INFO L93 Difference]: Finished difference Result 17020 states and 20786 transitions. [2024-11-28 02:13:53,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:13:53,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-28 02:13:53,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:53,663 INFO L225 Difference]: With dead ends: 17020 [2024-11-28 02:13:53,663 INFO L226 Difference]: Without dead ends: 5491 [2024-11-28 02:13:53,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:13:53,692 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 0 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:53,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2751 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5491 states. [2024-11-28 02:13:54,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5491 to 5299. [2024-11-28 02:13:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 4168 states have (on average 1.2106525911708252) internal successors, (5046), 4226 states have internal predecessors, (5046), 544 states have call successors, (544), 438 states have call predecessors, (544), 585 states have return successors, (877), 635 states have call predecessors, (877), 543 states have call successors, (877) [2024-11-28 02:13:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 6467 transitions. [2024-11-28 02:13:54,417 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 6467 transitions. Word has length 139 [2024-11-28 02:13:54,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:54,418 INFO L471 AbstractCegarLoop]: Abstraction has 5299 states and 6467 transitions. [2024-11-28 02:13:54,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:13:54,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 6467 transitions. [2024-11-28 02:13:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 02:13:54,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:54,429 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 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 02:13:54,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:13:54,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aa8016-1555-470b-9d3d-922925f1ed41/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 02:13:54,630 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:54,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:54,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1054997721, now seen corresponding path program 1 times [2024-11-28 02:13:54,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:54,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795393649] [2024-11-28 02:13:54,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:54,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 02:13:54,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:54,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795393649] [2024-11-28 02:13:54,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795393649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:54,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:54,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:13:54,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031630222] [2024-11-28 02:13:54,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:54,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:13:54,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:54,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:13:54,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:13:54,719 INFO L87 Difference]: Start difference. First operand 5299 states and 6467 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:13:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:55,198 INFO L93 Difference]: Finished difference Result 5616 states and 6841 transitions. [2024-11-28 02:13:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:13:55,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2024-11-28 02:13:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:55,230 INFO L225 Difference]: With dead ends: 5616 [2024-11-28 02:13:55,230 INFO L226 Difference]: Without dead ends: 4885 [2024-11-28 02:13:55,235 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 02:13:55,235 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 120 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 982 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 02:13:55,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 982 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:55,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2024-11-28 02:13:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4885. [2024-11-28 02:13:55,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4885 states, 3853 states have (on average 1.2138593303919025) internal successors, (4677), 3905 states have internal predecessors, (4677), 498 states have call successors, (498), 398 states have call predecessors, (498), 532 states have return successors, (809), 582 states have call predecessors, (809), 497 states have call successors, (809) [2024-11-28 02:13:55,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 5984 transitions. [2024-11-28 02:13:55,655 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 5984 transitions. Word has length 141 [2024-11-28 02:13:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:55,656 INFO L471 AbstractCegarLoop]: Abstraction has 4885 states and 5984 transitions. [2024-11-28 02:13:55,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:13:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 5984 transitions. [2024-11-28 02:13:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:13:55,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:55,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:55,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:13:55,665 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:55,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:55,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1997463745, now seen corresponding path program 1 times [2024-11-28 02:13:55,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:55,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670850942] [2024-11-28 02:13:55,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:55,729 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 02:13:55,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:55,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670850942] [2024-11-28 02:13:55,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670850942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:55,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:55,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:13:55,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665347227] [2024-11-28 02:13:55,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:55,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:13:55,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:55,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:13:55,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:13:55,731 INFO L87 Difference]: Start difference. First operand 4885 states and 5984 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 02:13:56,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:56,137 INFO L93 Difference]: Finished difference Result 5153 states and 6403 transitions. [2024-11-28 02:13:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:13:56,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 132 [2024-11-28 02:13:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:56,161 INFO L225 Difference]: With dead ends: 5153 [2024-11-28 02:13:56,161 INFO L226 Difference]: Without dead ends: 4885 [2024-11-28 02:13:56,165 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 02:13:56,165 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 422 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 677 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 02:13:56,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 677 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:56,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2024-11-28 02:13:56,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4885. [2024-11-28 02:13:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4885 states, 3853 states have (on average 1.213599792369582) internal successors, (4676), 3905 states have internal predecessors, (4676), 498 states have call successors, (498), 398 states have call predecessors, (498), 532 states have return successors, (809), 582 states have call predecessors, (809), 497 states have call successors, (809) [2024-11-28 02:13:56,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 5983 transitions. [2024-11-28 02:13:56,627 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 5983 transitions. Word has length 132 [2024-11-28 02:13:56,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:56,628 INFO L471 AbstractCegarLoop]: Abstraction has 4885 states and 5983 transitions. [2024-11-28 02:13:56,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 02:13:56,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 5983 transitions. [2024-11-28 02:13:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:13:56,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:56,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:56,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:13:56,637 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:56,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1135630143, now seen corresponding path program 1 times [2024-11-28 02:13:56,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:56,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696543850] [2024-11-28 02:13:56,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:56,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:56,783 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 02:13:56,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:56,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696543850] [2024-11-28 02:13:56,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696543850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:56,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:56,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:56,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968186245] [2024-11-28 02:13:56,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:56,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:13:56,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:56,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:13:56,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:56,786 INFO L87 Difference]: Start difference. First operand 4885 states and 5983 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 02:13:57,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:57,963 INFO L93 Difference]: Finished difference Result 5435 states and 6853 transitions. [2024-11-28 02:13:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:13:57,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 132 [2024-11-28 02:13:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:57,990 INFO L225 Difference]: With dead ends: 5435 [2024-11-28 02:13:57,990 INFO L226 Difference]: Without dead ends: 5176 [2024-11-28 02:13:57,993 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 02:13:57,994 INFO L435 NwaCegarLoop]: 391 mSDtfsCounter, 970 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:57,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1325 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:13:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5176 states. [2024-11-28 02:13:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 5155. [2024-11-28 02:13:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 4099 states have (on average 1.235911197853135) internal successors, (5066), 4152 states have internal predecessors, (5066), 515 states have call successors, (515), 404 states have call predecessors, (515), 539 states have return successors, (827), 599 states have call predecessors, (827), 514 states have call successors, (827) [2024-11-28 02:13:58,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 6408 transitions. [2024-11-28 02:13:58,435 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 6408 transitions. Word has length 132 [2024-11-28 02:13:58,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:58,435 INFO L471 AbstractCegarLoop]: Abstraction has 5155 states and 6408 transitions. [2024-11-28 02:13:58,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 02:13:58,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 6408 transitions. [2024-11-28 02:13:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:13:58,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:58,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:58,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:13:58,443 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:58,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:58,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2018769603, now seen corresponding path program 1 times [2024-11-28 02:13:58,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:58,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969473972] [2024-11-28 02:13:58,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:58,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:58,605 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 02:13:58,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:58,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969473972] [2024-11-28 02:13:58,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969473972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:58,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:58,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:58,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915226034] [2024-11-28 02:13:58,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:58,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:58,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:58,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:58,607 INFO L87 Difference]: Start difference. First operand 5155 states and 6408 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:00,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:00,002 INFO L93 Difference]: Finished difference Result 6028 states and 7800 transitions. [2024-11-28 02:14:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:00,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:00,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:00,028 INFO L225 Difference]: With dead ends: 6028 [2024-11-28 02:14:00,028 INFO L226 Difference]: Without dead ends: 5499 [2024-11-28 02:14:00,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 02:14:00,033 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 972 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:00,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 2441 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:14:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2024-11-28 02:14:00,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5406. [2024-11-28 02:14:00,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 4326 states have (on average 1.2524271844660195) internal successors, (5418), 4380 states have internal predecessors, (5418), 532 states have call successors, (532), 410 states have call predecessors, (532), 546 states have return successors, (847), 617 states have call predecessors, (847), 531 states have call successors, (847) [2024-11-28 02:14:00,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 6797 transitions. [2024-11-28 02:14:00,525 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 6797 transitions. Word has length 132 [2024-11-28 02:14:00,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:00,525 INFO L471 AbstractCegarLoop]: Abstraction has 5406 states and 6797 transitions. [2024-11-28 02:14:00,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:00,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 6797 transitions. [2024-11-28 02:14:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:00,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:00,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:00,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:14:00,532 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:00,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:00,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1804841343, now seen corresponding path program 1 times [2024-11-28 02:14:00,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:00,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900529556] [2024-11-28 02:14:00,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:00,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:00,689 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 02:14:00,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:00,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900529556] [2024-11-28 02:14:00,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900529556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:00,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:00,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:00,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122506890] [2024-11-28 02:14:00,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:00,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:00,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:00,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:00,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:00,691 INFO L87 Difference]: Start difference. First operand 5406 states and 6797 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:02,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:02,468 INFO L93 Difference]: Finished difference Result 6827 states and 9058 transitions. [2024-11-28 02:14:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:02,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:02,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:02,501 INFO L225 Difference]: With dead ends: 6827 [2024-11-28 02:14:02,501 INFO L226 Difference]: Without dead ends: 6047 [2024-11-28 02:14:02,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 02:14:02,507 INFO L435 NwaCegarLoop]: 610 mSDtfsCounter, 967 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:02,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 2425 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:14:02,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6047 states. [2024-11-28 02:14:03,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6047 to 5941. [2024-11-28 02:14:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5941 states, 4811 states have (on average 1.2847640823113697) internal successors, (6181), 4869 states have internal predecessors, (6181), 566 states have call successors, (566), 422 states have call predecessors, (566), 562 states have return successors, (893), 653 states have call predecessors, (893), 565 states have call successors, (893) [2024-11-28 02:14:03,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5941 states to 5941 states and 7640 transitions. [2024-11-28 02:14:03,209 INFO L78 Accepts]: Start accepts. Automaton has 5941 states and 7640 transitions. Word has length 132 [2024-11-28 02:14:03,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:03,209 INFO L471 AbstractCegarLoop]: Abstraction has 5941 states and 7640 transitions. [2024-11-28 02:14:03,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5941 states and 7640 transitions. [2024-11-28 02:14:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:03,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:03,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:03,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:14:03,217 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:03,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:03,219 INFO L85 PathProgramCache]: Analyzing trace with hash 842763011, now seen corresponding path program 1 times [2024-11-28 02:14:03,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:03,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186276805] [2024-11-28 02:14:03,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:03,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:03,385 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 02:14:03,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:03,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186276805] [2024-11-28 02:14:03,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186276805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:03,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:03,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:03,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071402293] [2024-11-28 02:14:03,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:03,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:03,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:03,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:03,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:03,389 INFO L87 Difference]: Start difference. First operand 5941 states and 7640 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:05,018 INFO L93 Difference]: Finished difference Result 8536 states and 11799 transitions. [2024-11-28 02:14:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:05,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:05,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:05,053 INFO L225 Difference]: With dead ends: 8536 [2024-11-28 02:14:05,053 INFO L226 Difference]: Without dead ends: 7221 [2024-11-28 02:14:05,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 02:14:05,060 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 959 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:05,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 2399 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:14:05,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7221 states. [2024-11-28 02:14:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7221 to 7095. [2024-11-28 02:14:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7095 states, 5859 states have (on average 1.3406724697047279) internal successors, (7855), 5931 states have internal predecessors, (7855), 634 states have call successors, (634), 446 states have call predecessors, (634), 600 states have return successors, (1009), 725 states have call predecessors, (1009), 633 states have call successors, (1009) [2024-11-28 02:14:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7095 states to 7095 states and 9498 transitions. [2024-11-28 02:14:05,895 INFO L78 Accepts]: Start accepts. Automaton has 7095 states and 9498 transitions. Word has length 132 [2024-11-28 02:14:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:05,895 INFO L471 AbstractCegarLoop]: Abstraction has 7095 states and 9498 transitions. [2024-11-28 02:14:05,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7095 states and 9498 transitions. [2024-11-28 02:14:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:05,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:05,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:05,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:14:05,902 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:05,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:05,903 INFO L85 PathProgramCache]: Analyzing trace with hash -195821563, now seen corresponding path program 1 times [2024-11-28 02:14:05,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:05,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444650678] [2024-11-28 02:14:05,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:05,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:06,027 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 02:14:06,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:06,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444650678] [2024-11-28 02:14:06,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444650678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:06,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:06,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:14:06,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559231615] [2024-11-28 02:14:06,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:06,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:14:06,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:06,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:14:06,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:14:06,030 INFO L87 Difference]: Start difference. First operand 7095 states and 9498 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:07,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:07,063 INFO L93 Difference]: Finished difference Result 9970 states and 14224 transitions. [2024-11-28 02:14:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:14:07,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:07,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:07,097 INFO L225 Difference]: With dead ends: 9970 [2024-11-28 02:14:07,097 INFO L226 Difference]: Without dead ends: 7501 [2024-11-28 02:14:07,105 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 02:14:07,106 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 732 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:07,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 979 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:14:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2024-11-28 02:14:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7095. [2024-11-28 02:14:07,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7095 states, 5859 states have (on average 1.339136371394436) internal successors, (7846), 5931 states have internal predecessors, (7846), 634 states have call successors, (634), 446 states have call predecessors, (634), 600 states have return successors, (1009), 725 states have call predecessors, (1009), 633 states have call successors, (1009) [2024-11-28 02:14:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7095 states to 7095 states and 9489 transitions. [2024-11-28 02:14:07,969 INFO L78 Accepts]: Start accepts. Automaton has 7095 states and 9489 transitions. Word has length 132 [2024-11-28 02:14:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:07,970 INFO L471 AbstractCegarLoop]: Abstraction has 7095 states and 9489 transitions. [2024-11-28 02:14:07,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7095 states and 9489 transitions. [2024-11-28 02:14:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:07,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:07,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:07,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:14:07,977 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:07,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:07,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2125980355, now seen corresponding path program 1 times [2024-11-28 02:14:07,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:07,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253051462] [2024-11-28 02:14:07,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:07,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:08,085 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 02:14:08,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:08,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253051462] [2024-11-28 02:14:08,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253051462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:08,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:08,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:14:08,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917575886] [2024-11-28 02:14:08,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:08,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:14:08,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:08,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:14:08,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:14:08,090 INFO L87 Difference]: Start difference. First operand 7095 states and 9489 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:09,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:09,102 INFO L93 Difference]: Finished difference Result 9941 states and 14148 transitions. [2024-11-28 02:14:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:14:09,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:09,130 INFO L225 Difference]: With dead ends: 9941 [2024-11-28 02:14:09,131 INFO L226 Difference]: Without dead ends: 7472 [2024-11-28 02:14:09,138 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 02:14:09,139 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 729 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:09,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 971 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:14:09,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2024-11-28 02:14:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 7095. [2024-11-28 02:14:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7095 states, 5859 states have (on average 1.337600273084144) internal successors, (7837), 5931 states have internal predecessors, (7837), 634 states have call successors, (634), 446 states have call predecessors, (634), 600 states have return successors, (1009), 725 states have call predecessors, (1009), 633 states have call successors, (1009) [2024-11-28 02:14:10,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7095 states to 7095 states and 9480 transitions. [2024-11-28 02:14:10,039 INFO L78 Accepts]: Start accepts. Automaton has 7095 states and 9480 transitions. Word has length 132 [2024-11-28 02:14:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:10,039 INFO L471 AbstractCegarLoop]: Abstraction has 7095 states and 9480 transitions. [2024-11-28 02:14:10,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:10,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7095 states and 9480 transitions. [2024-11-28 02:14:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:10,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:10,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:10,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:14:10,044 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:10,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:10,044 INFO L85 PathProgramCache]: Analyzing trace with hash -15880123, now seen corresponding path program 1 times [2024-11-28 02:14:10,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:10,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312259687] [2024-11-28 02:14:10,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:10,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:10,150 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 02:14:10,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:10,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312259687] [2024-11-28 02:14:10,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312259687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:10,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:10,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:14:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013061946] [2024-11-28 02:14:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:14:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:10,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:14:10,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:14:10,154 INFO L87 Difference]: Start difference. First operand 7095 states and 9480 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:11,248 INFO L93 Difference]: Finished difference Result 9912 states and 14072 transitions. [2024-11-28 02:14:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:14:11,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:11,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:11,282 INFO L225 Difference]: With dead ends: 9912 [2024-11-28 02:14:11,282 INFO L226 Difference]: Without dead ends: 7443 [2024-11-28 02:14:11,290 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 02:14:11,292 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 747 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:11,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 917 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:14:11,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7443 states. [2024-11-28 02:14:12,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7443 to 7095. [2024-11-28 02:14:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7095 states, 5859 states have (on average 1.3360641747738522) internal successors, (7828), 5931 states have internal predecessors, (7828), 634 states have call successors, (634), 446 states have call predecessors, (634), 600 states have return successors, (1009), 725 states have call predecessors, (1009), 633 states have call successors, (1009) [2024-11-28 02:14:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7095 states to 7095 states and 9471 transitions. [2024-11-28 02:14:12,204 INFO L78 Accepts]: Start accepts. Automaton has 7095 states and 9471 transitions. Word has length 132 [2024-11-28 02:14:12,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:12,204 INFO L471 AbstractCegarLoop]: Abstraction has 7095 states and 9471 transitions. [2024-11-28 02:14:12,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:12,204 INFO L276 IsEmpty]: Start isEmpty. Operand 7095 states and 9471 transitions. [2024-11-28 02:14:12,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:12,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:12,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:12,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:14:12,211 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:12,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash -639161725, now seen corresponding path program 1 times [2024-11-28 02:14:12,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:12,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537214303] [2024-11-28 02:14:12,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:12,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:12,405 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 02:14:12,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:12,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537214303] [2024-11-28 02:14:12,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537214303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:12,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:12,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015664829] [2024-11-28 02:14:12,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:12,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:12,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:12,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:12,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:12,408 INFO L87 Difference]: Start difference. First operand 7095 states and 9471 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:14,623 INFO L93 Difference]: Finished difference Result 12176 states and 17686 transitions. [2024-11-28 02:14:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:14,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:14,653 INFO L225 Difference]: With dead ends: 12176 [2024-11-28 02:14:14,653 INFO L226 Difference]: Without dead ends: 9707 [2024-11-28 02:14:14,663 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 02:14:14,664 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 930 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:14,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 2330 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:14:14,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2024-11-28 02:14:15,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 9565. [2024-11-28 02:14:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 8099 states have (on average 1.409803679466601) internal successors, (11418), 8217 states have internal predecessors, (11418), 770 states have call successors, (770), 494 states have call predecessors, (770), 694 states have return successors, (1337), 869 states have call predecessors, (1337), 769 states have call successors, (1337) [2024-11-28 02:14:15,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 13525 transitions. [2024-11-28 02:14:15,589 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 13525 transitions. Word has length 132 [2024-11-28 02:14:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:15,590 INFO L471 AbstractCegarLoop]: Abstraction has 9565 states and 13525 transitions. [2024-11-28 02:14:15,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:15,590 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 13525 transitions. [2024-11-28 02:14:15,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:15,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:15,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:15,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:14:15,595 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:15,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:15,595 INFO L85 PathProgramCache]: Analyzing trace with hash -520720251, now seen corresponding path program 1 times [2024-11-28 02:14:15,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:15,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273951414] [2024-11-28 02:14:15,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:15,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:15,726 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 02:14:15,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273951414] [2024-11-28 02:14:15,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273951414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:15,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:15,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:15,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709816480] [2024-11-28 02:14:15,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:15,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:15,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:15,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:15,729 INFO L87 Difference]: Start difference. First operand 9565 states and 13525 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:17,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:17,992 INFO L93 Difference]: Finished difference Result 21144 states and 32715 transitions. [2024-11-28 02:14:17,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:17,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:17,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:18,042 INFO L225 Difference]: With dead ends: 21144 [2024-11-28 02:14:18,043 INFO L226 Difference]: Without dead ends: 16205 [2024-11-28 02:14:18,059 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 02:14:18,059 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 1008 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:18,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 2305 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:14:18,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16205 states. [2024-11-28 02:14:19,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16205 to 14970. [2024-11-28 02:14:19,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14970 states, 13006 states have (on average 1.4933107796401661) internal successors, (19422), 13270 states have internal predecessors, (19422), 1026 states have call successors, (1026), 590 states have call predecessors, (1026), 936 states have return successors, (2361), 1141 states have call predecessors, (2361), 1025 states have call successors, (2361) [2024-11-28 02:14:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14970 states to 14970 states and 22809 transitions. [2024-11-28 02:14:19,473 INFO L78 Accepts]: Start accepts. Automaton has 14970 states and 22809 transitions. Word has length 132 [2024-11-28 02:14:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:19,473 INFO L471 AbstractCegarLoop]: Abstraction has 14970 states and 22809 transitions. [2024-11-28 02:14:19,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand 14970 states and 22809 transitions. [2024-11-28 02:14:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:19,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:19,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:19,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:14:19,480 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:19,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash 868573763, now seen corresponding path program 1 times [2024-11-28 02:14:19,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:19,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679236936] [2024-11-28 02:14:19,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:19,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:19,608 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 02:14:19,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:19,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679236936] [2024-11-28 02:14:19,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679236936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:19,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:19,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:19,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631680623] [2024-11-28 02:14:19,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:19,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:19,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:19,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:19,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:19,611 INFO L87 Difference]: Start difference. First operand 14970 states and 22809 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:22,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:22,343 INFO L93 Difference]: Finished difference Result 39581 states and 65725 transitions. [2024-11-28 02:14:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:22,417 INFO L225 Difference]: With dead ends: 39581 [2024-11-28 02:14:22,417 INFO L226 Difference]: Without dead ends: 29237 [2024-11-28 02:14:22,446 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 02:14:22,446 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 1143 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:22,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 2289 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:14:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29237 states. [2024-11-28 02:14:24,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29237 to 26981. [2024-11-28 02:14:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26981 states, 23875 states have (on average 1.5675811518324607) internal successors, (37426), 24593 states have internal predecessors, (37426), 1522 states have call successors, (1522), 782 states have call predecessors, (1522), 1582 states have return successors, (5929), 1669 states have call predecessors, (5929), 1521 states have call successors, (5929) [2024-11-28 02:14:24,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26981 states to 26981 states and 44877 transitions. [2024-11-28 02:14:24,280 INFO L78 Accepts]: Start accepts. Automaton has 26981 states and 44877 transitions. Word has length 132 [2024-11-28 02:14:24,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:24,280 INFO L471 AbstractCegarLoop]: Abstraction has 26981 states and 44877 transitions. [2024-11-28 02:14:24,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 26981 states and 44877 transitions. [2024-11-28 02:14:24,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:24,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:24,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:24,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 02:14:24,292 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:24,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1164820283, now seen corresponding path program 1 times [2024-11-28 02:14:24,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:24,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69443857] [2024-11-28 02:14:24,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:24,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:24,427 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 02:14:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69443857] [2024-11-28 02:14:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69443857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:24,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:24,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611371131] [2024-11-28 02:14:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:24,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:24,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:24,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:24,428 INFO L87 Difference]: Start difference. First operand 26981 states and 44877 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:28,883 INFO L93 Difference]: Finished difference Result 79548 states and 144083 transitions. [2024-11-28 02:14:28,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:28,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:28,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:29,055 INFO L225 Difference]: With dead ends: 79548 [2024-11-28 02:14:29,055 INFO L226 Difference]: Without dead ends: 57193 [2024-11-28 02:14:29,106 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 02:14:29,106 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 1076 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:29,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2267 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:14:29,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57193 states. [2024-11-28 02:14:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57193 to 53951. [2024-11-28 02:14:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53951 states, 48107 states have (on average 1.6200552934084438) internal successors, (77936), 50219 states have internal predecessors, (77936), 2482 states have call successors, (2482), 1166 states have call predecessors, (2482), 3360 states have return successors, (19177), 2693 states have call predecessors, (19177), 2481 states have call successors, (19177) [2024-11-28 02:14:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53951 states to 53951 states and 99595 transitions. [2024-11-28 02:14:32,894 INFO L78 Accepts]: Start accepts. Automaton has 53951 states and 99595 transitions. Word has length 132 [2024-11-28 02:14:32,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:32,894 INFO L471 AbstractCegarLoop]: Abstraction has 53951 states and 99595 transitions. [2024-11-28 02:14:32,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:32,894 INFO L276 IsEmpty]: Start isEmpty. Operand 53951 states and 99595 transitions. [2024-11-28 02:14:32,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:14:32,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:32,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:32,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:14:32,914 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:32,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:32,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1823004615, now seen corresponding path program 1 times [2024-11-28 02:14:32,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:32,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955102509] [2024-11-28 02:14:32,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:32,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:33,049 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 02:14:33,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:33,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955102509] [2024-11-28 02:14:33,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955102509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:33,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:33,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:33,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437281979] [2024-11-28 02:14:33,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:33,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:33,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:33,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:33,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:33,052 INFO L87 Difference]: Start difference. First operand 53951 states and 99595 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 02:14:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:42,460 INFO L93 Difference]: Finished difference Result 170458 states and 347671 transitions. [2024-11-28 02:14:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:14:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2024-11-28 02:14:42,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:43,046 INFO L225 Difference]: With dead ends: 170458 [2024-11-28 02:14:43,046 INFO L226 Difference]: Without dead ends: 121133 [2024-11-28 02:14:43,206 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 02:14:43,207 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 1041 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:43,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2255 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:14:43,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121133 states.