./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/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 b77809112787d30d81c7c3c0f8f2a230e1ec99494e3dfc2397bd48db4468ad64 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:58:48,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:58:48,312 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:58:48,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:58:48,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:58:48,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:58:48,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:58:48,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:58:48,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:58:48,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:58:48,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:58:48,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:58:48,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:58:48,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:58:48,373 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:58:48,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:58:48,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:58:48,375 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:58:48,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:58:48,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:58:48,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:58:48,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:58:48,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:58:48,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:58:48,377 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:58:48,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:58:48,378 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:58:48,378 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:58:48,378 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:58:48,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:48,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:48,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:48,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:48,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:48,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:58:48,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:58:48,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:58:48,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:58:48,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:58:48,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:58:48,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:58:48,380 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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/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 -> b77809112787d30d81c7c3c0f8f2a230e1ec99494e3dfc2397bd48db4468ad64 [2024-11-28 04:58:48,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:58:48,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:58:48,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:58:48,756 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:58:48,756 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:58:48,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2024-11-28 04:58:52,068 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/data/90e638e23/f189e5b6f663429fb88a952cb29d592a/FLAGd136fd130 [2024-11-28 04:58:52,441 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:58:52,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2024-11-28 04:58:52,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/data/90e638e23/f189e5b6f663429fb88a952cb29d592a/FLAGd136fd130 [2024-11-28 04:58:52,485 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/data/90e638e23/f189e5b6f663429fb88a952cb29d592a [2024-11-28 04:58:52,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:58:52,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:58:52,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:52,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:58:52,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:58:52,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:52" (1/1) ... [2024-11-28 04:58:52,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4652a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:52, skipping insertion in model container [2024-11-28 04:58:52,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:52" (1/1) ... [2024-11-28 04:58:52,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:58:52,789 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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[913,926] [2024-11-28 04:58:52,888 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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[5977,5990] [2024-11-28 04:58:53,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:58:53,142 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:58:53,156 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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[913,926] [2024-11-28 04:58:53,172 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_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[5977,5990] [2024-11-28 04:58:53,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:58:53,304 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:58:53,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53 WrapperNode [2024-11-28 04:58:53,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:53,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:58:53,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:58:53,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:58:53,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,422 INFO L138 Inliner]: procedures = 74, calls = 87, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1123 [2024-11-28 04:58:53,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:58:53,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:58:53,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:58:53,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:58:53,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,446 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,482 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 04:58:53,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,505 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:58:53,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:58:53,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:58:53,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:58:53,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (1/1) ... [2024-11-28 04:58:53,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:53,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:53,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:58:53,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:58:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:58:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 04:58:53,659 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 04:58:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-28 04:58:53,659 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-28 04:58:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-28 04:58:53,659 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-28 04:58:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-28 04:58:53,659 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-28 04:58:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-28 04:58:53,659 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-28 04:58:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-28 04:58:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-28 04:58:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-28 04:58:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-28 04:58:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:58:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-28 04:58:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-28 04:58:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:58:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:58:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-28 04:58:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-28 04:58:53,854 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:58:53,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:58:55,589 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2024-11-28 04:58:55,589 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:58:55,634 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:58:55,635 INFO L312 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-28 04:58:55,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:58:55 BoogieIcfgContainer [2024-11-28 04:58:55,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:58:55,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:58:55,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:58:55,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:58:55,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:58:52" (1/3) ... [2024-11-28 04:58:55,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7474a024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:58:55, skipping insertion in model container [2024-11-28 04:58:55,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:53" (2/3) ... [2024-11-28 04:58:55,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7474a024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:58:55, skipping insertion in model container [2024-11-28 04:58:55,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:58:55" (3/3) ... [2024-11-28 04:58:55,654 INFO L128 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2024-11-28 04:58:55,673 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:58:55,678 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_1.cil-2+token_ring.13.cil-2.c that has 10 procedures, 473 locations, 1 initial locations, 20 loop locations, and 2 error locations. [2024-11-28 04:58:55,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:58:55,796 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;@5fdb860b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:58:55,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 04:58:55,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 473 states, 430 states have (on average 1.6534883720930234) internal successors, (711), 433 states have internal predecessors, (711), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:58:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:58:55,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:55,814 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:55,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:55,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:55,823 INFO L85 PathProgramCache]: Analyzing trace with hash 677476393, now seen corresponding path program 1 times [2024-11-28 04:58:55,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:55,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965999089] [2024-11-28 04:58:55,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:55,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:56,259 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 04:58:56,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:56,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965999089] [2024-11-28 04:58:56,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965999089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:56,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:56,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:58:56,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647368881] [2024-11-28 04:58:56,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:56,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:58:56,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:56,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:58:56,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:58:56,306 INFO L87 Difference]: Start difference. First operand has 473 states, 430 states have (on average 1.6534883720930234) internal successors, (711), 433 states have internal predecessors, (711), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:58:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:56,463 INFO L93 Difference]: Finished difference Result 919 states and 1506 transitions. [2024-11-28 04:58:56,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:58:56,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-11-28 04:58:56,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:56,484 INFO L225 Difference]: With dead ends: 919 [2024-11-28 04:58:56,484 INFO L226 Difference]: Without dead ends: 463 [2024-11-28 04:58:56,491 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 04:58:56,495 INFO L435 NwaCegarLoop]: 729 mSDtfsCounter, 89 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1368 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 04:58:56,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1368 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:58:56,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-28 04:58:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2024-11-28 04:58:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 420 states have (on average 1.5666666666666667) internal successors, (658), 423 states have internal predecessors, (658), 33 states have call successors, (33), 9 states have call predecessors, (33), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 04:58:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 722 transitions. [2024-11-28 04:58:56,590 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 722 transitions. Word has length 41 [2024-11-28 04:58:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:56,591 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 722 transitions. [2024-11-28 04:58:56,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:58:56,591 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 722 transitions. [2024-11-28 04:58:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:58:56,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:56,594 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:56,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:58:56,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:56,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:56,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1071843179, now seen corresponding path program 1 times [2024-11-28 04:58:56,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:56,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885922954] [2024-11-28 04:58:56,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:56,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:56,763 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 04:58:56,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:56,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885922954] [2024-11-28 04:58:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885922954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:58:56,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164059884] [2024-11-28 04:58:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:56,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:58:56,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:56,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:58:56,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:58:56,766 INFO L87 Difference]: Start difference. First operand 463 states and 722 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:58:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:56,848 INFO L93 Difference]: Finished difference Result 576 states and 883 transitions. [2024-11-28 04:58:56,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:58:56,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-28 04:58:56,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:56,857 INFO L225 Difference]: With dead ends: 576 [2024-11-28 04:58:56,858 INFO L226 Difference]: Without dead ends: 518 [2024-11-28 04:58:56,859 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 04:58:56,862 INFO L435 NwaCegarLoop]: 736 mSDtfsCounter, 703 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:56,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 811 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:58:56,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-28 04:58:56,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 514. [2024-11-28 04:58:56,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 465 states have (on average 1.5462365591397849) internal successors, (719), 468 states have internal predecessors, (719), 37 states have call successors, (37), 11 states have call predecessors, (37), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2024-11-28 04:58:56,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 795 transitions. [2024-11-28 04:58:56,949 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 795 transitions. Word has length 41 [2024-11-28 04:58:56,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:56,949 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 795 transitions. [2024-11-28 04:58:56,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:58:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 795 transitions. [2024-11-28 04:58:56,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:58:56,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:56,952 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:56,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:58:56,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:56,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1719169633, now seen corresponding path program 1 times [2024-11-28 04:58:56,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:56,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825063427] [2024-11-28 04:58:56,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:56,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:57,123 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 04:58:57,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:57,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825063427] [2024-11-28 04:58:57,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825063427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:57,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:57,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:58:57,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003988058] [2024-11-28 04:58:57,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:57,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:58:57,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:57,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:58:57,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:58:57,125 INFO L87 Difference]: Start difference. First operand 514 states and 795 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:58:57,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:57,215 INFO L93 Difference]: Finished difference Result 707 states and 1068 transitions. [2024-11-28 04:58:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:58:57,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-28 04:58:57,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:57,247 INFO L225 Difference]: With dead ends: 707 [2024-11-28 04:58:57,247 INFO L226 Difference]: Without dead ends: 600 [2024-11-28 04:58:57,248 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 04:58:57,250 INFO L435 NwaCegarLoop]: 748 mSDtfsCounter, 65 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:57,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1446 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:58:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-28 04:58:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 575. [2024-11-28 04:58:57,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 520 states have (on average 1.5326923076923078) internal successors, (797), 523 states have internal predecessors, (797), 40 states have call successors, (40), 14 states have call predecessors, (40), 13 states have return successors, (43), 38 states have call predecessors, (43), 38 states have call successors, (43) [2024-11-28 04:58:57,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 880 transitions. [2024-11-28 04:58:57,294 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 880 transitions. Word has length 42 [2024-11-28 04:58:57,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:57,295 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 880 transitions. [2024-11-28 04:58:57,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:58:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 880 transitions. [2024-11-28 04:58:57,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:58:57,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:57,298 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:57,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:58:57,298 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:57,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:57,299 INFO L85 PathProgramCache]: Analyzing trace with hash -367512028, now seen corresponding path program 1 times [2024-11-28 04:58:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:57,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472820787] [2024-11-28 04:58:57,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:57,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:57,402 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 04:58:57,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:57,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472820787] [2024-11-28 04:58:57,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472820787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:57,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:57,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:58:57,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799712003] [2024-11-28 04:58:57,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:57,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:58:57,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:57,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:58:57,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:58:57,408 INFO L87 Difference]: Start difference. First operand 575 states and 880 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:58:57,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:57,508 INFO L93 Difference]: Finished difference Result 900 states and 1340 transitions. [2024-11-28 04:58:57,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:58:57,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-28 04:58:57,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:57,517 INFO L225 Difference]: With dead ends: 900 [2024-11-28 04:58:57,517 INFO L226 Difference]: Without dead ends: 732 [2024-11-28 04:58:57,518 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 04:58:57,521 INFO L435 NwaCegarLoop]: 731 mSDtfsCounter, 699 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:57,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 805 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:58:57,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-28 04:58:57,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 720. [2024-11-28 04:58:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 647 states have (on average 1.4945904173106646) internal successors, (967), 652 states have internal predecessors, (967), 51 states have call successors, (51), 21 states have call predecessors, (51), 20 states have return successors, (59), 47 states have call predecessors, (59), 49 states have call successors, (59) [2024-11-28 04:58:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1077 transitions. [2024-11-28 04:58:57,604 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1077 transitions. Word has length 43 [2024-11-28 04:58:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:57,605 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1077 transitions. [2024-11-28 04:58:57,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:58:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1077 transitions. [2024-11-28 04:58:57,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:58:57,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:57,609 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:57,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:58:57,609 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:57,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:57,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1748010040, now seen corresponding path program 1 times [2024-11-28 04:58:57,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:57,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559626130] [2024-11-28 04:58:57,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:57,755 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 04:58:57,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:57,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559626130] [2024-11-28 04:58:57,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559626130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:57,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:57,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:58:57,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836976613] [2024-11-28 04:58:57,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:57,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:58:57,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:57,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:58:57,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:58:57,758 INFO L87 Difference]: Start difference. First operand 720 states and 1077 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:58:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:57,841 INFO L93 Difference]: Finished difference Result 979 states and 1438 transitions. [2024-11-28 04:58:57,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:58:57,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-28 04:58:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:57,847 INFO L225 Difference]: With dead ends: 979 [2024-11-28 04:58:57,847 INFO L226 Difference]: Without dead ends: 775 [2024-11-28 04:58:57,849 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 04:58:57,850 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 52 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:57,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1489 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:58:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-28 04:58:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2024-11-28 04:58:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 694 states have (on average 1.4711815561959654) internal successors, (1021), 699 states have internal predecessors, (1021), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (67), 52 states have call predecessors, (67), 54 states have call successors, (67) [2024-11-28 04:58:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1144 transitions. [2024-11-28 04:58:57,932 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1144 transitions. Word has length 58 [2024-11-28 04:58:57,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:57,933 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1144 transitions. [2024-11-28 04:58:57,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:58:57,933 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1144 transitions. [2024-11-28 04:58:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:58:57,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:57,937 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:57,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:58:57,938 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:57,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:57,940 INFO L85 PathProgramCache]: Analyzing trace with hash -274678359, now seen corresponding path program 1 times [2024-11-28 04:58:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:57,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609599157] [2024-11-28 04:58:57,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:57,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:58:58,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:58,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609599157] [2024-11-28 04:58:58,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609599157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:58,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906392477] [2024-11-28 04:58:58,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:58,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:58,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:58,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:58,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:58:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:58,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:58:58,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:58:58,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:58:58,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906392477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:58,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:58:58,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-28 04:58:58,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441588153] [2024-11-28 04:58:58,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:58,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:58:58,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:58,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:58:58,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:58:58,623 INFO L87 Difference]: Start difference. First operand 775 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:58:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:58,719 INFO L93 Difference]: Finished difference Result 1199 states and 1717 transitions. [2024-11-28 04:58:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:58:58,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2024-11-28 04:58:58,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:58,731 INFO L225 Difference]: With dead ends: 1199 [2024-11-28 04:58:58,731 INFO L226 Difference]: Without dead ends: 876 [2024-11-28 04:58:58,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:58:58,734 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 678 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:58,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 799 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:58:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-28 04:58:58,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2024-11-28 04:58:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 783 states have (on average 1.4431673052362708) internal successors, (1130), 788 states have internal predecessors, (1130), 63 states have call successors, (63), 29 states have call predecessors, (63), 28 states have return successors, (77), 59 states have call predecessors, (77), 61 states have call successors, (77) [2024-11-28 04:58:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1270 transitions. [2024-11-28 04:58:58,822 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1270 transitions. Word has length 63 [2024-11-28 04:58:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:58,824 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1270 transitions. [2024-11-28 04:58:58,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:58:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1270 transitions. [2024-11-28 04:58:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:58:58,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:58,856 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:58,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:58:59,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:58:59,057 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:59,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:59,057 INFO L85 PathProgramCache]: Analyzing trace with hash 125312840, now seen corresponding path program 1 times [2024-11-28 04:58:59,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:59,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941213281] [2024-11-28 04:58:59,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:59,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:58:59,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941213281] [2024-11-28 04:58:59,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941213281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787834401] [2024-11-28 04:58:59,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:59,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:59,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:59,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:59,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:58:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:59,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:58:59,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:58:59,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 04:58:59,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787834401] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:59,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:58:59,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-28 04:58:59,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120745014] [2024-11-28 04:58:59,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:59,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:58:59,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:59,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:58:59,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:58:59,740 INFO L87 Difference]: Start difference. First operand 876 states and 1270 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:00,103 INFO L93 Difference]: Finished difference Result 925 states and 1331 transitions. [2024-11-28 04:59:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 63 [2024-11-28 04:59:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:00,111 INFO L225 Difference]: With dead ends: 925 [2024-11-28 04:59:00,111 INFO L226 Difference]: Without dead ends: 922 [2024-11-28 04:59:00,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:59:00,113 INFO L435 NwaCegarLoop]: 744 mSDtfsCounter, 1325 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:00,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 807 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:59:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-28 04:59:00,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 875. [2024-11-28 04:59:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 783 states have (on average 1.4406130268199233) internal successors, (1128), 787 states have internal predecessors, (1128), 62 states have call successors, (62), 29 states have call predecessors, (62), 28 states have return successors, (77), 59 states have call predecessors, (77), 61 states have call successors, (77) [2024-11-28 04:59:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1267 transitions. [2024-11-28 04:59:00,189 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1267 transitions. Word has length 63 [2024-11-28 04:59:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:00,190 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1267 transitions. [2024-11-28 04:59:00,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:00,190 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1267 transitions. [2024-11-28 04:59:00,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:59:00,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:00,195 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:00,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:59:00,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:00,396 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:00,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:00,396 INFO L85 PathProgramCache]: Analyzing trace with hash -411718521, now seen corresponding path program 1 times [2024-11-28 04:59:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:00,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505247666] [2024-11-28 04:59:00,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:00,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:59:00,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:00,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505247666] [2024-11-28 04:59:00,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505247666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:00,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360341249] [2024-11-28 04:59:00,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:00,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:00,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:00,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:00,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:59:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:00,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:59:00,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:01,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 04:59:01,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360341249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:59:01,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:59:01,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2024-11-28 04:59:01,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101642532] [2024-11-28 04:59:01,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:01,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:59:01,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:01,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:59:01,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:59:01,268 INFO L87 Difference]: Start difference. First operand 875 states and 1267 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-28 04:59:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:02,109 INFO L93 Difference]: Finished difference Result 1969 states and 2753 transitions. [2024-11-28 04:59:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:59:02,109 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 64 [2024-11-28 04:59:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:02,120 INFO L225 Difference]: With dead ends: 1969 [2024-11-28 04:59:02,121 INFO L226 Difference]: Without dead ends: 1590 [2024-11-28 04:59:02,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:59:02,126 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 1490 mSDsluCounter, 4629 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 5434 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:02,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 5434 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:59:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2024-11-28 04:59:02,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1191. [2024-11-28 04:59:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1065 states have (on average 1.395305164319249) internal successors, (1486), 1073 states have internal predecessors, (1486), 81 states have call successors, (81), 42 states have call predecessors, (81), 43 states have return successors, (106), 76 states have call predecessors, (106), 80 states have call successors, (106) [2024-11-28 04:59:02,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1673 transitions. [2024-11-28 04:59:02,259 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1673 transitions. Word has length 64 [2024-11-28 04:59:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:02,259 INFO L471 AbstractCegarLoop]: Abstraction has 1191 states and 1673 transitions. [2024-11-28 04:59:02,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-28 04:59:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1673 transitions. [2024-11-28 04:59:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 04:59:02,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:02,263 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:02,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:02,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:02,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:02,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:02,465 INFO L85 PathProgramCache]: Analyzing trace with hash -185269356, now seen corresponding path program 1 times [2024-11-28 04:59:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:02,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073402778] [2024-11-28 04:59:02,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:02,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 04:59:02,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:02,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073402778] [2024-11-28 04:59:02,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073402778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:02,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910795229] [2024-11-28 04:59:02,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:02,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:02,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:02,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:02,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:59:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:02,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:59:02,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 04:59:02,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910795229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:02,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:02,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 04:59:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721446823] [2024-11-28 04:59:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:02,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:02,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:02,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:02,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:02,886 INFO L87 Difference]: Start difference. First operand 1191 states and 1673 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:59:03,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:03,022 INFO L93 Difference]: Finished difference Result 1726 states and 2383 transitions. [2024-11-28 04:59:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:03,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 82 [2024-11-28 04:59:03,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:03,032 INFO L225 Difference]: With dead ends: 1726 [2024-11-28 04:59:03,032 INFO L226 Difference]: Without dead ends: 1095 [2024-11-28 04:59:03,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:03,035 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 684 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:03,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 820 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:03,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-28 04:59:03,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1088. [2024-11-28 04:59:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 974 states have (on average 1.3973305954825461) internal successors, (1361), 983 states have internal predecessors, (1361), 74 states have call successors, (74), 37 states have call predecessors, (74), 38 states have return successors, (96), 68 states have call predecessors, (96), 73 states have call successors, (96) [2024-11-28 04:59:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1531 transitions. [2024-11-28 04:59:03,141 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1531 transitions. Word has length 82 [2024-11-28 04:59:03,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:03,142 INFO L471 AbstractCegarLoop]: Abstraction has 1088 states and 1531 transitions. [2024-11-28 04:59:03,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:59:03,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1531 transitions. [2024-11-28 04:59:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:59:03,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:03,146 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:03,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:03,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:03,347 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:03,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1817756757, now seen corresponding path program 1 times [2024-11-28 04:59:03,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:03,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960203916] [2024-11-28 04:59:03,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:03,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:03,510 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:59:03,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:03,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960203916] [2024-11-28 04:59:03,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960203916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:03,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624394795] [2024-11-28 04:59:03,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:03,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:03,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:03,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:03,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:59:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:03,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:59:03,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 04:59:03,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:03,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624394795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:03,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:03,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 04:59:03,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300463575] [2024-11-28 04:59:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:03,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:03,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:03,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:03,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:03,735 INFO L87 Difference]: Start difference. First operand 1088 states and 1531 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 04:59:03,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:03,821 INFO L93 Difference]: Finished difference Result 1377 states and 1898 transitions. [2024-11-28 04:59:03,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:03,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 96 [2024-11-28 04:59:03,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:03,825 INFO L225 Difference]: With dead ends: 1377 [2024-11-28 04:59:03,826 INFO L226 Difference]: Without dead ends: 401 [2024-11-28 04:59:03,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:03,829 INFO L435 NwaCegarLoop]: 763 mSDtfsCounter, 59 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:03,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1460 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-28 04:59:03,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-28 04:59:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 367 states have (on average 1.5831062670299727) internal successors, (581), 368 states have internal predecessors, (581), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:59:03,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 635 transitions. [2024-11-28 04:59:03,857 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 635 transitions. Word has length 96 [2024-11-28 04:59:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:03,857 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 635 transitions. [2024-11-28 04:59:03,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 04:59:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 635 transitions. [2024-11-28 04:59:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:03,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:03,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:03,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:59:04,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d3d6a7-e16d-4c33-b965-6807a5ef592f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:59:04,061 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:04,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1363257284, now seen corresponding path program 1 times [2024-11-28 04:59:04,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:04,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847796025] [2024-11-28 04:59:04,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:04,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:04,200 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 04:59:04,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:04,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847796025] [2024-11-28 04:59:04,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847796025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:04,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:04,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:04,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049955663] [2024-11-28 04:59:04,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:04,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:04,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:04,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:04,203 INFO L87 Difference]: Start difference. First operand 401 states and 635 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 04:59:04,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:04,238 INFO L93 Difference]: Finished difference Result 789 states and 1249 transitions. [2024-11-28 04:59:04,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:04,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:04,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:04,241 INFO L225 Difference]: With dead ends: 789 [2024-11-28 04:59:04,242 INFO L226 Difference]: Without dead ends: 401 [2024-11-28 04:59:04,243 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 04:59:04,244 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 622 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 634 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 04:59:04,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 634 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:04,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-28 04:59:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-28 04:59:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 367 states have (on average 1.5803814713896458) internal successors, (580), 368 states have internal predecessors, (580), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:59:04,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 634 transitions. [2024-11-28 04:59:04,278 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 634 transitions. Word has length 187 [2024-11-28 04:59:04,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:04,279 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 634 transitions. [2024-11-28 04:59:04,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 04:59:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 634 transitions. [2024-11-28 04:59:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:04,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:04,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:04,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:59:04,284 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:04,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:04,284 INFO L85 PathProgramCache]: Analyzing trace with hash 835863234, now seen corresponding path program 1 times [2024-11-28 04:59:04,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:04,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470062458] [2024-11-28 04:59:04,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:04,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:04,603 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 04:59:04,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:04,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470062458] [2024-11-28 04:59:04,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470062458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:04,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:04,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:59:04,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648774616] [2024-11-28 04:59:04,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:04,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:04,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:04,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:04,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:04,608 INFO L87 Difference]: Start difference. First operand 401 states and 634 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 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 04:59:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:05,822 INFO L93 Difference]: Finished difference Result 1211 states and 1934 transitions. [2024-11-28 04:59:05,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:59:05,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:05,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:05,828 INFO L225 Difference]: With dead ends: 1211 [2024-11-28 04:59:05,828 INFO L226 Difference]: Without dead ends: 832 [2024-11-28 04:59:05,830 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 04:59:05,831 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 1234 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:05,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1750 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:59:05,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-28 04:59:05,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 801. [2024-11-28 04:59:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 738 states have (on average 1.5921409214092141) internal successors, (1175), 740 states have internal predecessors, (1175), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-28 04:59:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1274 transitions. [2024-11-28 04:59:05,882 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1274 transitions. Word has length 187 [2024-11-28 04:59:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:05,882 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1274 transitions. [2024-11-28 04:59:05,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 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 04:59:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1274 transitions. [2024-11-28 04:59:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:05,885 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:05,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:05,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:59:05,886 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:05,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2067060922, now seen corresponding path program 1 times [2024-11-28 04:59:05,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:05,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880316448] [2024-11-28 04:59:05,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:05,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:06,227 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 04:59:06,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:06,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880316448] [2024-11-28 04:59:06,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880316448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:06,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:06,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:06,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497832115] [2024-11-28 04:59:06,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:06,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:06,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:06,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:06,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:06,231 INFO L87 Difference]: Start difference. First operand 801 states and 1274 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:07,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:07,773 INFO L93 Difference]: Finished difference Result 2094 states and 3371 transitions. [2024-11-28 04:59:07,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:59:07,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:07,782 INFO L225 Difference]: With dead ends: 2094 [2024-11-28 04:59:07,782 INFO L226 Difference]: Without dead ends: 1315 [2024-11-28 04:59:07,785 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 04:59:07,786 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 1246 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 3383 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:07,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 3383 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:59:07,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-11-28 04:59:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1172. [2024-11-28 04:59:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1080 states have (on average 1.5851851851851853) internal successors, (1712), 1083 states have internal predecessors, (1712), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2024-11-28 04:59:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1858 transitions. [2024-11-28 04:59:07,913 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1858 transitions. Word has length 187 [2024-11-28 04:59:07,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:07,914 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1858 transitions. [2024-11-28 04:59:07,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:07,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1858 transitions. [2024-11-28 04:59:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:07,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:07,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:07,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:59:07,919 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:07,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:07,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1496789116, now seen corresponding path program 1 times [2024-11-28 04:59:07,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:07,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179088100] [2024-11-28 04:59:07,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:07,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:08,239 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 04:59:08,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:08,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179088100] [2024-11-28 04:59:08,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179088100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:08,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:08,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:59:08,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449521902] [2024-11-28 04:59:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:08,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:08,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:08,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:08,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:08,241 INFO L87 Difference]: Start difference. First operand 1172 states and 1858 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:08,975 INFO L93 Difference]: Finished difference Result 2452 states and 3936 transitions. [2024-11-28 04:59:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:08,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:08,983 INFO L225 Difference]: With dead ends: 2452 [2024-11-28 04:59:08,984 INFO L226 Difference]: Without dead ends: 1302 [2024-11-28 04:59:08,987 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 04:59:08,988 INFO L435 NwaCegarLoop]: 477 mSDtfsCounter, 868 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:08,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1266 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:59:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-11-28 04:59:09,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1172. [2024-11-28 04:59:09,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1080 states have (on average 1.5824074074074075) internal successors, (1709), 1083 states have internal predecessors, (1709), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2024-11-28 04:59:09,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1855 transitions. [2024-11-28 04:59:09,111 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1855 transitions. Word has length 187 [2024-11-28 04:59:09,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:09,111 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1855 transitions. [2024-11-28 04:59:09,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:09,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1855 transitions. [2024-11-28 04:59:09,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:09,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:09,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:09,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:59:09,116 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:09,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:09,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2012180290, now seen corresponding path program 1 times [2024-11-28 04:59:09,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:09,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456291949] [2024-11-28 04:59:09,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:09,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:09,401 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 04:59:09,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:09,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456291949] [2024-11-28 04:59:09,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456291949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:09,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:09,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:59:09,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49631111] [2024-11-28 04:59:09,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:09,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:09,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:09,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:09,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:09,405 INFO L87 Difference]: Start difference. First operand 1172 states and 1855 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:10,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:10,105 INFO L93 Difference]: Finished difference Result 2447 states and 3920 transitions. [2024-11-28 04:59:10,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:10,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:10,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:10,113 INFO L225 Difference]: With dead ends: 2447 [2024-11-28 04:59:10,113 INFO L226 Difference]: Without dead ends: 1297 [2024-11-28 04:59:10,117 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 04:59:10,117 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 865 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:10,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1258 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:59:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2024-11-28 04:59:10,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1172. [2024-11-28 04:59:10,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1080 states have (on average 1.5796296296296297) internal successors, (1706), 1083 states have internal predecessors, (1706), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2024-11-28 04:59:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1852 transitions. [2024-11-28 04:59:10,212 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1852 transitions. Word has length 187 [2024-11-28 04:59:10,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:10,212 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1852 transitions. [2024-11-28 04:59:10,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:10,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1852 transitions. [2024-11-28 04:59:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:10,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:10,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:10,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:59:10,217 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:10,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1615405116, now seen corresponding path program 1 times [2024-11-28 04:59:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170635515] [2024-11-28 04:59:10,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:10,531 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 04:59:10,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:10,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170635515] [2024-11-28 04:59:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170635515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:10,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:10,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:10,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736473693] [2024-11-28 04:59:10,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:10,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:10,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:10,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:10,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:10,535 INFO L87 Difference]: Start difference. First operand 1172 states and 1852 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:12,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:12,047 INFO L93 Difference]: Finished difference Result 3259 states and 5208 transitions. [2024-11-28 04:59:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:59:12,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:12,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:12,060 INFO L225 Difference]: With dead ends: 3259 [2024-11-28 04:59:12,060 INFO L226 Difference]: Without dead ends: 2109 [2024-11-28 04:59:12,064 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 04:59:12,065 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 1222 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:12,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 3315 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:59:12,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2024-11-28 04:59:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1958. [2024-11-28 04:59:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1806 states have (on average 1.5819490586932448) internal successors, (2857), 1813 states have internal predecessors, (2857), 115 states have call successors, (115), 30 states have call predecessors, (115), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2024-11-28 04:59:12,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 3103 transitions. [2024-11-28 04:59:12,251 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 3103 transitions. Word has length 187 [2024-11-28 04:59:12,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:12,253 INFO L471 AbstractCegarLoop]: Abstraction has 1958 states and 3103 transitions. [2024-11-28 04:59:12,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:12,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 3103 transitions. [2024-11-28 04:59:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:12,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:12,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:12,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:59:12,257 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:12,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:12,258 INFO L85 PathProgramCache]: Analyzing trace with hash 484333314, now seen corresponding path program 1 times [2024-11-28 04:59:12,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:12,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847009908] [2024-11-28 04:59:12,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:12,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:12,479 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 04:59:12,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:12,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847009908] [2024-11-28 04:59:12,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847009908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:12,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:12,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:59:12,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764059742] [2024-11-28 04:59:12,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:12,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:12,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:12,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:12,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:12,483 INFO L87 Difference]: Start difference. First operand 1958 states and 3103 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:13,272 INFO L93 Difference]: Finished difference Result 4147 states and 6670 transitions. [2024-11-28 04:59:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:13,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:13,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:13,288 INFO L225 Difference]: With dead ends: 4147 [2024-11-28 04:59:13,289 INFO L226 Difference]: Without dead ends: 2211 [2024-11-28 04:59:13,295 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 04:59:13,296 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 904 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:13,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1154 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:59:13,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2024-11-28 04:59:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 1958. [2024-11-28 04:59:13,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1806 states have (on average 1.5791805094130675) internal successors, (2852), 1813 states have internal predecessors, (2852), 115 states have call successors, (115), 30 states have call predecessors, (115), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2024-11-28 04:59:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 3098 transitions. [2024-11-28 04:59:13,515 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 3098 transitions. Word has length 187 [2024-11-28 04:59:13,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:13,516 INFO L471 AbstractCegarLoop]: Abstraction has 1958 states and 3098 transitions. [2024-11-28 04:59:13,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:13,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 3098 transitions. [2024-11-28 04:59:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:13,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:13,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:13,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:59:13,521 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:13,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash 829161476, now seen corresponding path program 1 times [2024-11-28 04:59:13,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:13,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622027983] [2024-11-28 04:59:13,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:13,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:13,784 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 04:59:13,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:13,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622027983] [2024-11-28 04:59:13,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622027983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:13,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:13,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:13,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197600424] [2024-11-28 04:59:13,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:13,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:13,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:13,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:13,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:13,788 INFO L87 Difference]: Start difference. First operand 1958 states and 3098 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:15,425 INFO L93 Difference]: Finished difference Result 5777 states and 9270 transitions. [2024-11-28 04:59:15,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:59:15,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:15,448 INFO L225 Difference]: With dead ends: 5777 [2024-11-28 04:59:15,448 INFO L226 Difference]: Without dead ends: 3841 [2024-11-28 04:59:15,454 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 04:59:15,455 INFO L435 NwaCegarLoop]: 804 mSDtfsCounter, 1209 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:15,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 3284 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:59:15,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2024-11-28 04:59:15,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3656. [2024-11-28 04:59:15,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3378 states have (on average 1.5932504440497335) internal successors, (5382), 3399 states have internal predecessors, (5382), 203 states have call successors, (203), 54 states have call predecessors, (203), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2024-11-28 04:59:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5852 transitions. [2024-11-28 04:59:15,786 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5852 transitions. Word has length 187 [2024-11-28 04:59:15,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:15,786 INFO L471 AbstractCegarLoop]: Abstraction has 3656 states and 5852 transitions. [2024-11-28 04:59:15,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:15,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5852 transitions. [2024-11-28 04:59:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:15,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:15,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:15,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:59:15,793 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:15,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:15,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1810116290, now seen corresponding path program 1 times [2024-11-28 04:59:15,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:15,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075942745] [2024-11-28 04:59:15,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:15,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:16,036 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 04:59:16,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:16,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075942745] [2024-11-28 04:59:16,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075942745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:16,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:16,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:59:16,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361958455] [2024-11-28 04:59:16,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:16,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:16,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:16,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:16,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:16,040 INFO L87 Difference]: Start difference. First operand 3656 states and 5852 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:16,889 INFO L93 Difference]: Finished difference Result 7899 states and 12882 transitions. [2024-11-28 04:59:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:16,943 INFO L225 Difference]: With dead ends: 7899 [2024-11-28 04:59:16,944 INFO L226 Difference]: Without dead ends: 4265 [2024-11-28 04:59:16,953 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 04:59:16,954 INFO L435 NwaCegarLoop]: 464 mSDtfsCounter, 857 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:16,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1230 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:59:16,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4265 states. [2024-11-28 04:59:17,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4265 to 3656. [2024-11-28 04:59:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3378 states have (on average 1.5905861456483126) internal successors, (5373), 3399 states have internal predecessors, (5373), 203 states have call successors, (203), 54 states have call predecessors, (203), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2024-11-28 04:59:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5843 transitions. [2024-11-28 04:59:17,394 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5843 transitions. Word has length 187 [2024-11-28 04:59:17,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:17,394 INFO L471 AbstractCegarLoop]: Abstraction has 3656 states and 5843 transitions. [2024-11-28 04:59:17,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:17,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5843 transitions. [2024-11-28 04:59:17,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:17,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:17,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:17,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:59:17,401 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:17,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash 40644676, now seen corresponding path program 1 times [2024-11-28 04:59:17,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:17,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612790020] [2024-11-28 04:59:17,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:17,657 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 04:59:17,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:17,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612790020] [2024-11-28 04:59:17,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612790020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:17,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:17,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:17,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354033896] [2024-11-28 04:59:17,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:17,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:17,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:17,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:17,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:17,662 INFO L87 Difference]: Start difference. First operand 3656 states and 5843 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:19,515 INFO L93 Difference]: Finished difference Result 11279 states and 18359 transitions. [2024-11-28 04:59:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:59:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:19,569 INFO L225 Difference]: With dead ends: 11279 [2024-11-28 04:59:19,570 INFO L226 Difference]: Without dead ends: 7645 [2024-11-28 04:59:19,580 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 04:59:19,581 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 1196 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:19,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 3253 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:59:19,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2024-11-28 04:59:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7394. [2024-11-28 04:59:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7394 states, 6846 states have (on average 1.614227286006427) internal successors, (11051), 6913 states have internal predecessors, (11051), 379 states have call successors, (379), 102 states have call predecessors, (379), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2024-11-28 04:59:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7394 states to 7394 states and 12065 transitions. [2024-11-28 04:59:20,213 INFO L78 Accepts]: Start accepts. Automaton has 7394 states and 12065 transitions. Word has length 187 [2024-11-28 04:59:20,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:20,213 INFO L471 AbstractCegarLoop]: Abstraction has 7394 states and 12065 transitions. [2024-11-28 04:59:20,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:20,214 INFO L276 IsEmpty]: Start isEmpty. Operand 7394 states and 12065 transitions. [2024-11-28 04:59:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:20,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:20,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:20,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:59:20,221 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:20,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:20,222 INFO L85 PathProgramCache]: Analyzing trace with hash -570624382, now seen corresponding path program 1 times [2024-11-28 04:59:20,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:20,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090167803] [2024-11-28 04:59:20,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:20,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:20,414 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 04:59:20,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:20,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090167803] [2024-11-28 04:59:20,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090167803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:20,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:20,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:59:20,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465303857] [2024-11-28 04:59:20,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:20,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:20,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:20,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:20,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:20,417 INFO L87 Difference]: Start difference. First operand 7394 states and 12065 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:21,731 INFO L93 Difference]: Finished difference Result 16260 states and 27124 transitions. [2024-11-28 04:59:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:21,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:21,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:21,777 INFO L225 Difference]: With dead ends: 16260 [2024-11-28 04:59:21,777 INFO L226 Difference]: Without dead ends: 8888 [2024-11-28 04:59:21,797 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 04:59:21,799 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 852 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:21,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1210 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:59:21,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8888 states. [2024-11-28 04:59:22,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8888 to 7394. [2024-11-28 04:59:22,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7394 states, 6846 states have (on average 1.611744084136722) internal successors, (11034), 6913 states have internal predecessors, (11034), 379 states have call successors, (379), 102 states have call predecessors, (379), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2024-11-28 04:59:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7394 states to 7394 states and 12048 transitions. [2024-11-28 04:59:22,469 INFO L78 Accepts]: Start accepts. Automaton has 7394 states and 12048 transitions. Word has length 187 [2024-11-28 04:59:22,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:22,472 INFO L471 AbstractCegarLoop]: Abstraction has 7394 states and 12048 transitions. [2024-11-28 04:59:22,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:22,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7394 states and 12048 transitions. [2024-11-28 04:59:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:22,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:22,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:22,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:59:22,479 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:22,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:22,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1323709504, now seen corresponding path program 1 times [2024-11-28 04:59:22,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:22,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638507082] [2024-11-28 04:59:22,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:22,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:22,755 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 04:59:22,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638507082] [2024-11-28 04:59:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638507082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:22,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:22,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:22,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831423099] [2024-11-28 04:59:22,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:22,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:22,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:22,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:22,758 INFO L87 Difference]: Start difference. First operand 7394 states and 12048 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:25,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:25,084 INFO L93 Difference]: Finished difference Result 23433 states and 39068 transitions. [2024-11-28 04:59:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:59:25,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:25,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:25,159 INFO L225 Difference]: With dead ends: 23433 [2024-11-28 04:59:25,159 INFO L226 Difference]: Without dead ends: 16061 [2024-11-28 04:59:25,185 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 04:59:25,187 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 1180 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:25,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 3208 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:59:25,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16061 states. [2024-11-28 04:59:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16061 to 15707. [2024-11-28 04:59:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15707 states, 14565 states have (on average 1.6394095434260212) internal successors, (23878), 14778 states have internal predecessors, (23878), 731 states have call successors, (731), 198 states have call predecessors, (731), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2024-11-28 04:59:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15707 states to 15707 states and 26364 transitions. [2024-11-28 04:59:26,627 INFO L78 Accepts]: Start accepts. Automaton has 15707 states and 26364 transitions. Word has length 187 [2024-11-28 04:59:26,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:26,627 INFO L471 AbstractCegarLoop]: Abstraction has 15707 states and 26364 transitions. [2024-11-28 04:59:26,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:26,628 INFO L276 IsEmpty]: Start isEmpty. Operand 15707 states and 26364 transitions. [2024-11-28 04:59:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:26,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:26,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:26,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:59:26,637 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:26,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:26,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1524676926, now seen corresponding path program 1 times [2024-11-28 04:59:26,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:26,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256088013] [2024-11-28 04:59:26,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:26,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:26,870 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 04:59:26,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256088013] [2024-11-28 04:59:26,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256088013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:26,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:26,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:26,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420318493] [2024-11-28 04:59:26,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:26,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:26,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:26,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:26,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:26,873 INFO L87 Difference]: Start difference. First operand 15707 states and 26364 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:30,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:30,318 INFO L93 Difference]: Finished difference Result 51120 states and 88546 transitions. [2024-11-28 04:59:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:59:30,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:30,503 INFO L225 Difference]: With dead ends: 51120 [2024-11-28 04:59:30,504 INFO L226 Difference]: Without dead ends: 35435 [2024-11-28 04:59:30,555 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 04:59:30,556 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 1175 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:30,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 3196 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:59:30,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35435 states. [2024-11-28 04:59:33,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35435 to 34844. [2024-11-28 04:59:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34844 states, 32352 states have (on average 1.671797725024728) internal successors, (54086), 33019 states have internal predecessors, (54086), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2024-11-28 04:59:33,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34844 states to 34844 states and 61052 transitions. [2024-11-28 04:59:33,322 INFO L78 Accepts]: Start accepts. Automaton has 34844 states and 61052 transitions. Word has length 187 [2024-11-28 04:59:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:33,322 INFO L471 AbstractCegarLoop]: Abstraction has 34844 states and 61052 transitions. [2024-11-28 04:59:33,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:33,323 INFO L276 IsEmpty]: Start isEmpty. Operand 34844 states and 61052 transitions. [2024-11-28 04:59:33,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:33,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:33,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:33,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:59:33,338 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:33,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:33,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1847122944, now seen corresponding path program 1 times [2024-11-28 04:59:33,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:33,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919502788] [2024-11-28 04:59:33,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:33,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:33,505 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 04:59:33,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919502788] [2024-11-28 04:59:33,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919502788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:33,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:33,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:59:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482360340] [2024-11-28 04:59:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:33,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:33,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:33,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:33,508 INFO L87 Difference]: Start difference. First operand 34844 states and 61052 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:37,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:37,849 INFO L93 Difference]: Finished difference Result 80631 states and 146032 transitions. [2024-11-28 04:59:37,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:37,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:37,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:38,056 INFO L225 Difference]: With dead ends: 80631 [2024-11-28 04:59:38,056 INFO L226 Difference]: Without dead ends: 45809 [2024-11-28 04:59:38,169 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 04:59:38,170 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 872 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:38,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 1130 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:59:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45809 states. [2024-11-28 04:59:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45809 to 34844. [2024-11-28 04:59:40,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34844 states, 32352 states have (on average 1.6697885756676558) internal successors, (54021), 33019 states have internal predecessors, (54021), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2024-11-28 04:59:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34844 states to 34844 states and 60987 transitions. [2024-11-28 04:59:40,746 INFO L78 Accepts]: Start accepts. Automaton has 34844 states and 60987 transitions. Word has length 187 [2024-11-28 04:59:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:40,746 INFO L471 AbstractCegarLoop]: Abstraction has 34844 states and 60987 transitions. [2024-11-28 04:59:40,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:40,747 INFO L276 IsEmpty]: Start isEmpty. Operand 34844 states and 60987 transitions. [2024-11-28 04:59:40,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:40,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:40,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:40,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:59:40,762 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:40,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:40,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2061981950, now seen corresponding path program 1 times [2024-11-28 04:59:40,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:40,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391926263] [2024-11-28 04:59:40,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:40,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:40,971 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 04:59:40,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:40,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391926263] [2024-11-28 04:59:40,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391926263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:40,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:40,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91839967] [2024-11-28 04:59:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:40,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:40,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:40,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:40,974 INFO L87 Difference]: Start difference. First operand 34844 states and 60987 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:47,406 INFO L93 Difference]: Finished difference Result 120859 states and 219230 transitions. [2024-11-28 04:59:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:59:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 187 [2024-11-28 04:59:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:47,870 INFO L225 Difference]: With dead ends: 120859 [2024-11-28 04:59:47,870 INFO L226 Difference]: Without dead ends: 86037 [2024-11-28 04:59:48,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:59:48,053 INFO L435 NwaCegarLoop]: 770 mSDtfsCounter, 1535 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:48,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 3148 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:59:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86037 states. [2024-11-28 04:59:53,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86037 to 78988. [2024-11-28 04:59:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78988 states, 73374 states have (on average 1.7028238885708835) internal successors, (124943), 75435 states have internal predecessors, (124943), 2779 states have call successors, (2779), 774 states have call predecessors, (2779), 2834 states have return successors, (19163), 2906 states have call predecessors, (19163), 2779 states have call successors, (19163) [2024-11-28 04:59:53,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78988 states to 78988 states and 146885 transitions. [2024-11-28 04:59:53,875 INFO L78 Accepts]: Start accepts. Automaton has 78988 states and 146885 transitions. Word has length 187 [2024-11-28 04:59:53,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:53,876 INFO L471 AbstractCegarLoop]: Abstraction has 78988 states and 146885 transitions. [2024-11-28 04:59:53,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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 04:59:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 78988 states and 146885 transitions. [2024-11-28 04:59:53,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:59:53,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:53,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:53,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:59:53,897 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:53,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1968337856, now seen corresponding path program 1 times [2024-11-28 04:59:53,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:53,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765025947] [2024-11-28 04:59:53,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:53,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:54,093 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 04:59:54,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:54,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765025947] [2024-11-28 04:59:54,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765025947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:54,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:54,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:59:54,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127421333] [2024-11-28 04:59:54,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:54,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:59:54,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:54,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:59:54,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:54,096 INFO L87 Difference]: Start difference. First operand 78988 states and 146885 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 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)