./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd --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 57a0d461468e871620bb6a0a3de7e8bdfa4741915d12326365887ea97e191d16 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:32:56,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:32:56,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:32:56,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:32:56,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:32:56,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:32:56,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:32:56,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:32:56,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:32:56,431 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:32:56,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:32:56,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:32:56,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:32:56,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:32:56,433 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:32:56,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:32:56,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:32:56,436 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:32:56,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:32:56,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:32:56,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:32:56,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:32:56,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:32:56,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:32:56,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:32:56,437 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:32:56,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:32:56,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:32:56,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:32:56,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:32:56,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:32:56,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:32:56,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:32:56,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:32:56,439 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_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd 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 -> 57a0d461468e871620bb6a0a3de7e8bdfa4741915d12326365887ea97e191d16 [2024-11-13 15:32:56,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:32:56,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:32:56,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:32:56,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:32:56,872 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:32:56,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c Unable to find full path for "g++" [2024-11-13 15:32:59,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:32:59,655 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:32:59,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c [2024-11-13 15:32:59,697 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/data/a744a0f5c/103392b2b618463b9ccabd1266649f36/FLAG85f8d9cdd [2024-11-13 15:32:59,720 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/data/a744a0f5c/103392b2b618463b9ccabd1266649f36 [2024-11-13 15:32:59,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:32:59,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:32:59,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:32:59,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:32:59,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:32:59,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:32:59" (1/1) ... [2024-11-13 15:32:59,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf8cd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:59, skipping insertion in model container [2024-11-13 15:32:59,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:32:59" (1/1) ... [2024-11-13 15:32:59,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:33:00,070 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_774748d6-6d46-4121-96f5-03f89d19a7c9/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c[911,924] [2024-11-13 15:33:00,193 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_774748d6-6d46-4121-96f5-03f89d19a7c9/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c[8416,8429] [2024-11-13 15:33:00,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:33:00,465 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:33:00,479 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_774748d6-6d46-4121-96f5-03f89d19a7c9/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c[911,924] [2024-11-13 15:33:00,519 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_774748d6-6d46-4121-96f5-03f89d19a7c9/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.12.cil-2.c[8416,8429] [2024-11-13 15:33:00,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:33:00,622 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:33:00,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00 WrapperNode [2024-11-13 15:33:00,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:33:00,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:33:00,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:33:00,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:33:00,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,733 INFO L138 Inliner]: procedures = 79, calls = 97, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 1087 [2024-11-13 15:33:00,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:33:00,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:33:00,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:33:00,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:33:00,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,779 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]. [2024-11-13 15:33:00,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,799 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:33:00,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:33:00,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:33:00,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:33:00,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (1/1) ... [2024-11-13 15:33:00,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:33:00,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:00,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:00,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774748d6-6d46-4121-96f5-03f89d19a7c9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:33:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:33:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-13 15:33:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-13 15:33:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-13 15:33:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-13 15:33:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-13 15:33:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-13 15:33:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-13 15:33:00,973 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-13 15:33:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-13 15:33:00,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-13 15:33:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-13 15:33:00,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-13 15:33:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-13 15:33:00,973 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-13 15:33:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-13 15:33:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-13 15:33:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-13 15:33:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-13 15:33:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-13 15:33:00,975 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-13 15:33:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-13 15:33:00,975 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-13 15:33:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:33:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-13 15:33:00,977 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-13 15:33:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-13 15:33:00,977 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-13 15:33:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:33:00,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:33:00,978 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-13 15:33:00,978 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-13 15:33:01,251 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:33:01,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:33:02,590 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-13 15:33:02,591 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-13 15:33:03,022 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-11-13 15:33:03,022 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:33:03,066 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:33:03,066 INFO L316 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-13 15:33:03,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:03 BoogieIcfgContainer [2024-11-13 15:33:03,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:33:03,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:33:03,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:33:03,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:33:03,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:32:59" (1/3) ... [2024-11-13 15:33:03,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a084aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:33:03, skipping insertion in model container [2024-11-13 15:33:03,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:00" (2/3) ... [2024-11-13 15:33:03,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a084aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:33:03, skipping insertion in model container [2024-11-13 15:33:03,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:03" (3/3) ... [2024-11-13 15:33:03,084 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.12.cil-2.c [2024-11-13 15:33:03,107 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:33:03,112 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_3.cil+token_ring.12.cil-2.c that has 15 procedures, 512 locations, 1 initial locations, 19 loop locations, and 2 error locations. [2024-11-13 15:33:03,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:33:03,263 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;@7075b7d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:33:03,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:33:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 512 states, 453 states have (on average 1.620309050772627) internal successors, (734), 459 states have internal predecessors, (734), 42 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-13 15:33:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:33:03,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:03,286 INFO L215 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] [2024-11-13 15:33:03,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:03,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:03,293 INFO L85 PathProgramCache]: Analyzing trace with hash -55375449, now seen corresponding path program 1 times [2024-11-13 15:33:03,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:03,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142003823] [2024-11-13 15:33:03,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:03,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:33:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:33:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:33:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:03,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:03,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142003823] [2024-11-13 15:33:03,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142003823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:03,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:03,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:33:03,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902776786] [2024-11-13 15:33:03,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:03,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:33:03,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:03,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:33:03,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:03,890 INFO L87 Difference]: Start difference. First operand has 512 states, 453 states have (on average 1.620309050772627) internal successors, (734), 459 states have internal predecessors, (734), 42 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:05,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:05,773 INFO L93 Difference]: Finished difference Result 1014 states and 1616 transitions. [2024-11-13 15:33:05,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:33:05,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-13 15:33:05,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:05,803 INFO L225 Difference]: With dead ends: 1014 [2024-11-13 15:33:05,803 INFO L226 Difference]: Without dead ends: 520 [2024-11-13 15:33:05,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:33:05,814 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1118 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:05,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 1476 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 15:33:05,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-13 15:33:05,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 502. [2024-11-13 15:33:05,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 445 states have (on average 1.5348314606741573) internal successors, (683), 449 states have internal predecessors, (683), 42 states have call successors, (42), 14 states have call predecessors, (42), 13 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 15:33:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 765 transitions. [2024-11-13 15:33:05,922 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 765 transitions. Word has length 65 [2024-11-13 15:33:05,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:05,922 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 765 transitions. [2024-11-13 15:33:05,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 765 transitions. [2024-11-13 15:33:05,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:33:05,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:05,927 INFO L215 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] [2024-11-13 15:33:05,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:33:05,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:05,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:05,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1442160859, now seen corresponding path program 1 times [2024-11-13 15:33:05,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:05,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082173501] [2024-11-13 15:33:05,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:05,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:33:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:33:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:33:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:06,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:06,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082173501] [2024-11-13 15:33:06,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082173501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:06,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:06,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:33:06,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480913572] [2024-11-13 15:33:06,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:06,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:33:06,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:06,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:33:06,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:33:06,477 INFO L87 Difference]: Start difference. First operand 502 states and 765 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:08,792 INFO L93 Difference]: Finished difference Result 757 states and 1134 transitions. [2024-11-13 15:33:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:33:08,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-13 15:33:08,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:08,811 INFO L225 Difference]: With dead ends: 757 [2024-11-13 15:33:08,811 INFO L226 Difference]: Without dead ends: 653 [2024-11-13 15:33:08,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:33:08,817 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1288 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:08,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 2236 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:33:08,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-13 15:33:08,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 614. [2024-11-13 15:33:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 535 states have (on average 1.5121495327102803) internal successors, (809), 541 states have internal predecessors, (809), 55 states have call successors, (55), 21 states have call predecessors, (55), 22 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-13 15:33:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 922 transitions. [2024-11-13 15:33:08,912 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 922 transitions. Word has length 65 [2024-11-13 15:33:08,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:08,913 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 922 transitions. [2024-11-13 15:33:08,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 922 transitions. [2024-11-13 15:33:08,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:33:08,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:08,916 INFO L215 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] [2024-11-13 15:33:08,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:33:08,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:08,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash 236727781, now seen corresponding path program 1 times [2024-11-13 15:33:08,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:08,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039360225] [2024-11-13 15:33:08,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:08,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:33:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:33:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:33:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:09,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:09,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039360225] [2024-11-13 15:33:09,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039360225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:09,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:09,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:33:09,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885445672] [2024-11-13 15:33:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:09,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:33:09,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:09,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:33:09,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:33:09,248 INFO L87 Difference]: Start difference. First operand 614 states and 922 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:11,720 INFO L93 Difference]: Finished difference Result 1011 states and 1487 transitions. [2024-11-13 15:33:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:33:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-13 15:33:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:11,732 INFO L225 Difference]: With dead ends: 1011 [2024-11-13 15:33:11,733 INFO L226 Difference]: Without dead ends: 802 [2024-11-13 15:33:11,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:33:11,738 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 1835 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:11,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 2202 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 15:33:11,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-13 15:33:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 726. [2024-11-13 15:33:11,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 625 states have (on average 1.4944) internal successors, (934), 633 states have internal predecessors, (934), 68 states have call successors, (68), 28 states have call predecessors, (68), 31 states have return successors, (79), 68 states have call predecessors, (79), 66 states have call successors, (79) [2024-11-13 15:33:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1081 transitions. [2024-11-13 15:33:11,857 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1081 transitions. Word has length 65 [2024-11-13 15:33:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:11,858 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1081 transitions. [2024-11-13 15:33:11,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1081 transitions. [2024-11-13 15:33:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:33:11,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:11,864 INFO L215 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] [2024-11-13 15:33:11,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:33:11,864 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:11,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:11,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1791858329, now seen corresponding path program 1 times [2024-11-13 15:33:11,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:11,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432175447] [2024-11-13 15:33:11,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:11,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:33:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:33:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:33:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:12,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:12,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432175447] [2024-11-13 15:33:12,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432175447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:12,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:12,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:33:12,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901302245] [2024-11-13 15:33:12,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:12,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:12,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:12,117 INFO L87 Difference]: Start difference. First operand 726 states and 1081 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 15:33:14,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:14,061 INFO L93 Difference]: Finished difference Result 1398 states and 2023 transitions. [2024-11-13 15:33:14,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:33:14,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-13 15:33:14,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:14,076 INFO L225 Difference]: With dead ends: 1398 [2024-11-13 15:33:14,076 INFO L226 Difference]: Without dead ends: 1083 [2024-11-13 15:33:14,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:33:14,081 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 1953 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:14,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 1676 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 15:33:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-13 15:33:14,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1007. [2024-11-13 15:33:14,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 851 states have (on average 1.4582843713278495) internal successors, (1241), 863 states have internal predecessors, (1241), 98 states have call successors, (98), 49 states have call predecessors, (98), 56 states have return successors, (117), 98 states have call predecessors, (117), 96 states have call successors, (117) [2024-11-13 15:33:14,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1456 transitions. [2024-11-13 15:33:14,275 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1456 transitions. Word has length 65 [2024-11-13 15:33:14,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:14,276 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1456 transitions. [2024-11-13 15:33:14,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 15:33:14,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1456 transitions. [2024-11-13 15:33:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:33:14,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:14,279 INFO L215 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] [2024-11-13 15:33:14,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:33:14,279 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:14,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1228582201, now seen corresponding path program 1 times [2024-11-13 15:33:14,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:14,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260463155] [2024-11-13 15:33:14,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:14,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:33:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 15:33:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 15:33:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:14,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260463155] [2024-11-13 15:33:14,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260463155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:14,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:14,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:33:14,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078026127] [2024-11-13 15:33:14,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:14,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:33:14,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:14,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:33:14,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:33:14,647 INFO L87 Difference]: Start difference. First operand 1007 states and 1456 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:33:16,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:16,903 INFO L93 Difference]: Finished difference Result 1675 states and 2383 transitions. [2024-11-13 15:33:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:33:16,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-13 15:33:16,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:16,913 INFO L225 Difference]: With dead ends: 1675 [2024-11-13 15:33:16,913 INFO L226 Difference]: Without dead ends: 1079 [2024-11-13 15:33:16,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:33:16,918 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 664 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:16,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 3067 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:33:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-13 15:33:17,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1022. [2024-11-13 15:33:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 863 states have (on average 1.4484356894553883) internal successors, (1250), 875 states have internal predecessors, (1250), 98 states have call successors, (98), 49 states have call predecessors, (98), 59 states have return successors, (120), 101 states have call predecessors, (120), 96 states have call successors, (120) [2024-11-13 15:33:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1468 transitions. [2024-11-13 15:33:17,076 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1468 transitions. Word has length 66 [2024-11-13 15:33:17,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:17,077 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1468 transitions. [2024-11-13 15:33:17,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:33:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1468 transitions. [2024-11-13 15:33:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:33:17,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:17,080 INFO L215 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] [2024-11-13 15:33:17,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:33:17,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:17,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:17,081 INFO L85 PathProgramCache]: Analyzing trace with hash 199222903, now seen corresponding path program 1 times [2024-11-13 15:33:17,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:17,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249071311] [2024-11-13 15:33:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:17,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:33:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 15:33:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 15:33:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:17,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:17,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249071311] [2024-11-13 15:33:17,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249071311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:17,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:17,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:33:17,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392346760] [2024-11-13 15:33:17,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:17,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:33:17,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:17,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:33:17,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:33:17,410 INFO L87 Difference]: Start difference. First operand 1022 states and 1468 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 15:33:21,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:21,390 INFO L93 Difference]: Finished difference Result 3227 states and 4589 transitions. [2024-11-13 15:33:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 15:33:21,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-13 15:33:21,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:21,401 INFO L225 Difference]: With dead ends: 3227 [2024-11-13 15:33:21,401 INFO L226 Difference]: Without dead ends: 1385 [2024-11-13 15:33:21,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 15:33:21,411 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 2633 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:21,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 2926 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 15:33:21,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-13 15:33:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1230. [2024-11-13 15:33:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1015 states have (on average 1.412807881773399) internal successors, (1434), 1031 states have internal predecessors, (1434), 128 states have call successors, (128), 70 states have call predecessors, (128), 85 states have return successors, (169), 132 states have call predecessors, (169), 126 states have call successors, (169) [2024-11-13 15:33:21,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1731 transitions. [2024-11-13 15:33:21,560 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1731 transitions. Word has length 66 [2024-11-13 15:33:21,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:21,561 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1731 transitions. [2024-11-13 15:33:21,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 15:33:21,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1731 transitions. [2024-11-13 15:33:21,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:33:21,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:21,565 INFO L215 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] [2024-11-13 15:33:21,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:33:21,565 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:21,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:21,566 INFO L85 PathProgramCache]: Analyzing trace with hash -152353469, now seen corresponding path program 1 times [2024-11-13 15:33:21,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:21,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752234196] [2024-11-13 15:33:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:21,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:33:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:33:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:33:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:21,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:21,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:21,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752234196] [2024-11-13 15:33:21,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752234196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:21,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:21,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:33:21,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492345333] [2024-11-13 15:33:21,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:21,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:33:21,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:21,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:33:21,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:33:21,831 INFO L87 Difference]: Start difference. First operand 1230 states and 1731 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:33:24,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:24,049 INFO L93 Difference]: Finished difference Result 2186 states and 3037 transitions. [2024-11-13 15:33:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:33:24,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-13 15:33:24,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:24,060 INFO L225 Difference]: With dead ends: 2186 [2024-11-13 15:33:24,060 INFO L226 Difference]: Without dead ends: 1367 [2024-11-13 15:33:24,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:33:24,064 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 987 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:24,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 2673 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:33:24,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-13 15:33:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1275. [2024-11-13 15:33:24,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1051 states have (on average 1.3986679352997144) internal successors, (1470), 1067 states have internal predecessors, (1470), 128 states have call successors, (128), 70 states have call predecessors, (128), 94 states have return successors, (178), 141 states have call predecessors, (178), 126 states have call successors, (178) [2024-11-13 15:33:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1776 transitions. [2024-11-13 15:33:24,201 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1776 transitions. Word has length 67 [2024-11-13 15:33:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:24,202 INFO L471 AbstractCegarLoop]: Abstraction has 1275 states and 1776 transitions. [2024-11-13 15:33:24,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:33:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1776 transitions. [2024-11-13 15:33:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:33:24,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:24,210 INFO L215 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] [2024-11-13 15:33:24,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:33:24,211 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:24,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:24,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1233849925, now seen corresponding path program 1 times [2024-11-13 15:33:24,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:24,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952777882] [2024-11-13 15:33:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:24,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:33:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:33:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:33:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:24,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:24,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952777882] [2024-11-13 15:33:24,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952777882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:24,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:24,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:33:24,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263281881] [2024-11-13 15:33:24,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:24,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:33:24,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:24,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:33:24,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:33:24,527 INFO L87 Difference]: Start difference. First operand 1275 states and 1776 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:26,701 INFO L93 Difference]: Finished difference Result 2255 states and 3079 transitions. [2024-11-13 15:33:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 15:33:26,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-13 15:33:26,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:26,711 INFO L225 Difference]: With dead ends: 2255 [2024-11-13 15:33:26,711 INFO L226 Difference]: Without dead ends: 1478 [2024-11-13 15:33:26,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:33:26,715 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1498 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:26,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 2207 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 15:33:26,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2024-11-13 15:33:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1284. [2024-11-13 15:33:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1060 states have (on average 1.3933962264150943) internal successors, (1477), 1074 states have internal predecessors, (1477), 129 states have call successors, (129), 71 states have call predecessors, (129), 93 states have return successors, (174), 142 states have call predecessors, (174), 127 states have call successors, (174) [2024-11-13 15:33:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1780 transitions. [2024-11-13 15:33:26,859 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1780 transitions. Word has length 67 [2024-11-13 15:33:26,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:26,859 INFO L471 AbstractCegarLoop]: Abstraction has 1284 states and 1780 transitions. [2024-11-13 15:33:26,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:26,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1780 transitions. [2024-11-13 15:33:26,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:33:26,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:26,864 INFO L215 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] [2024-11-13 15:33:26,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:33:26,864 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:26,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:26,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1099836419, now seen corresponding path program 1 times [2024-11-13 15:33:26,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:26,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450583741] [2024-11-13 15:33:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:26,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:26,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:26,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:26,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:27,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:27,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:33:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:27,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:33:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:27,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:33:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:27,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:27,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450583741] [2024-11-13 15:33:27,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450583741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:27,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:27,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:33:27,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730534681] [2024-11-13 15:33:27,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:27,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:27,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:27,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:27,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:27,046 INFO L87 Difference]: Start difference. First operand 1284 states and 1780 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:28,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:28,408 INFO L93 Difference]: Finished difference Result 3169 states and 4299 transitions. [2024-11-13 15:33:28,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:33:28,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-13 15:33:28,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:28,424 INFO L225 Difference]: With dead ends: 3169 [2024-11-13 15:33:28,424 INFO L226 Difference]: Without dead ends: 2299 [2024-11-13 15:33:28,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:33:28,429 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 1821 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:28,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 1493 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:33:28,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2024-11-13 15:33:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2133. [2024-11-13 15:33:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 1714 states have (on average 1.3436406067677946) internal successors, (2303), 1741 states have internal predecessors, (2303), 233 states have call successors, (233), 135 states have call predecessors, (233), 184 states have return successors, (364), 263 states have call predecessors, (364), 231 states have call successors, (364) [2024-11-13 15:33:28,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 2900 transitions. [2024-11-13 15:33:28,708 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 2900 transitions. Word has length 67 [2024-11-13 15:33:28,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:28,708 INFO L471 AbstractCegarLoop]: Abstraction has 2133 states and 2900 transitions. [2024-11-13 15:33:28,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:33:28,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 2900 transitions. [2024-11-13 15:33:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:33:28,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:28,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:28,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:33:28,712 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:28,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:28,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1840569270, now seen corresponding path program 1 times [2024-11-13 15:33:28,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:28,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185850414] [2024-11-13 15:33:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:33:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:33:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:33:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:33:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:33:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:33:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:28,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:28,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:28,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185850414] [2024-11-13 15:33:28,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185850414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:28,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:28,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:33:28,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3980762] [2024-11-13 15:33:28,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:28,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:33:28,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:28,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:33:28,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:28,835 INFO L87 Difference]: Start difference. First operand 2133 states and 2900 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:33:30,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:30,022 INFO L93 Difference]: Finished difference Result 3856 states and 5256 transitions. [2024-11-13 15:33:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:33:30,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-13 15:33:30,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:30,030 INFO L225 Difference]: With dead ends: 3856 [2024-11-13 15:33:30,030 INFO L226 Difference]: Without dead ends: 391 [2024-11-13 15:33:30,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:33:30,040 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 1645 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:30,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 1090 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-13 15:33:30,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-13 15:33:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 358 states have (on average 1.5558659217877095) internal successors, (557), 359 states have internal predecessors, (557), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 15:33:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 609 transitions. [2024-11-13 15:33:30,065 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 609 transitions. Word has length 68 [2024-11-13 15:33:30,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:30,065 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 609 transitions. [2024-11-13 15:33:30,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:33:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 609 transitions. [2024-11-13 15:33:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:33:30,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:30,068 INFO L215 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] [2024-11-13 15:33:30,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:33:30,069 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:30,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:30,069 INFO L85 PathProgramCache]: Analyzing trace with hash -774960502, now seen corresponding path program 1 times [2024-11-13 15:33:30,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:30,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280360934] [2024-11-13 15:33:30,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:30,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:30,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:30,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:33:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:30,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:33:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:30,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:33:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:30,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:33:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:30,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280360934] [2024-11-13 15:33:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280360934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:30,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:30,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:33:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641728893] [2024-11-13 15:33:30,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:30,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:33:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:30,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:33:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:30,377 INFO L87 Difference]: Start difference. First operand 391 states and 609 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:33,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:33,151 INFO L93 Difference]: Finished difference Result 911 states and 1442 transitions. [2024-11-13 15:33:33,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:33:33,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:33:33,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:33,156 INFO L225 Difference]: With dead ends: 911 [2024-11-13 15:33:33,156 INFO L226 Difference]: Without dead ends: 533 [2024-11-13 15:33:33,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:33:33,158 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 1041 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:33,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 775 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 15:33:33,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-13 15:33:33,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 391. [2024-11-13 15:33:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 358 states have (on average 1.553072625698324) internal successors, (556), 359 states have internal predecessors, (556), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 15:33:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 608 transitions. [2024-11-13 15:33:33,197 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 608 transitions. Word has length 178 [2024-11-13 15:33:33,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:33,197 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 608 transitions. [2024-11-13 15:33:33,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:33,198 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 608 transitions. [2024-11-13 15:33:33,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:33:33,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:33,201 INFO L215 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] [2024-11-13 15:33:33,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:33:33,201 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:33,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash 949647820, now seen corresponding path program 1 times [2024-11-13 15:33:33,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:33,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47473119] [2024-11-13 15:33:33,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:33,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:33,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:33:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:33,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:33:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:33,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:33:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:33,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:33:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:33,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:33,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47473119] [2024-11-13 15:33:33,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47473119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:33,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:33,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:33:33,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259220279] [2024-11-13 15:33:33,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:33,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:33:33,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:33,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:33:33,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:33,610 INFO L87 Difference]: Start difference. First operand 391 states and 608 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:38,229 INFO L93 Difference]: Finished difference Result 1433 states and 2281 transitions. [2024-11-13 15:33:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:33:38,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:33:38,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:38,236 INFO L225 Difference]: With dead ends: 1433 [2024-11-13 15:33:38,237 INFO L226 Difference]: Without dead ends: 1063 [2024-11-13 15:33:38,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:33:38,240 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 1580 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:38,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 1326 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 15:33:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2024-11-13 15:33:38,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 780. [2024-11-13 15:33:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 719 states have (on average 1.564673157162726) internal successors, (1125), 721 states have internal predecessors, (1125), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-13 15:33:38,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1222 transitions. [2024-11-13 15:33:38,317 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1222 transitions. Word has length 178 [2024-11-13 15:33:38,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:38,318 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1222 transitions. [2024-11-13 15:33:38,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1222 transitions. [2024-11-13 15:33:38,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:33:38,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:38,321 INFO L215 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] [2024-11-13 15:33:38,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:33:38,322 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:38,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:38,322 INFO L85 PathProgramCache]: Analyzing trace with hash 73662544, now seen corresponding path program 1 times [2024-11-13 15:33:38,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:38,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175206549] [2024-11-13 15:33:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:38,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:38,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:38,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:33:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:38,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:33:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:38,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:33:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:38,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:33:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:38,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:38,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175206549] [2024-11-13 15:33:38,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175206549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:38,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:38,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:33:38,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962178035] [2024-11-13 15:33:38,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:38,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:38,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:38,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:38,780 INFO L87 Difference]: Start difference. First operand 780 states and 1222 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:44,870 INFO L93 Difference]: Finished difference Result 2374 states and 3787 transitions. [2024-11-13 15:33:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:33:44,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:33:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:44,880 INFO L225 Difference]: With dead ends: 2374 [2024-11-13 15:33:44,880 INFO L226 Difference]: Without dead ends: 1615 [2024-11-13 15:33:44,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:33:44,883 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 1621 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:44,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 2571 Invalid, 3644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:33:44,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-13 15:33:45,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1143. [2024-11-13 15:33:45,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1054 states have (on average 1.5578747628083491) internal successors, (1642), 1057 states have internal predecessors, (1642), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-13 15:33:45,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1783 transitions. [2024-11-13 15:33:45,029 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1783 transitions. Word has length 178 [2024-11-13 15:33:45,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:45,029 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1783 transitions. [2024-11-13 15:33:45,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:45,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1783 transitions. [2024-11-13 15:33:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:33:45,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:45,035 INFO L215 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] [2024-11-13 15:33:45,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:33:45,036 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:45,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:45,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1331529134, now seen corresponding path program 1 times [2024-11-13 15:33:45,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:45,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952399113] [2024-11-13 15:33:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:45,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:45,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:45,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:33:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:45,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:33:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:45,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:33:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:45,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:33:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:45,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952399113] [2024-11-13 15:33:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952399113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:45,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:45,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:33:45,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717557251] [2024-11-13 15:33:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:45,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:45,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:45,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:45,481 INFO L87 Difference]: Start difference. First operand 1143 states and 1783 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:48,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:48,922 INFO L93 Difference]: Finished difference Result 2755 states and 4388 transitions. [2024-11-13 15:33:48,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:33:48,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:33:48,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:48,933 INFO L225 Difference]: With dead ends: 2755 [2024-11-13 15:33:48,933 INFO L226 Difference]: Without dead ends: 1633 [2024-11-13 15:33:48,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:33:48,938 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1148 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:48,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 1299 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 15:33:48,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-13 15:33:49,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1143. [2024-11-13 15:33:49,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1054 states have (on average 1.5550284629981024) internal successors, (1639), 1057 states have internal predecessors, (1639), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-13 15:33:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1780 transitions. [2024-11-13 15:33:49,058 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1780 transitions. Word has length 178 [2024-11-13 15:33:49,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:49,058 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1780 transitions. [2024-11-13 15:33:49,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1780 transitions. [2024-11-13 15:33:49,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:33:49,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:49,062 INFO L215 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] [2024-11-13 15:33:49,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:33:49,063 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:49,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash 562804752, now seen corresponding path program 1 times [2024-11-13 15:33:49,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:49,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688229199] [2024-11-13 15:33:49,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:49,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:49,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:49,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:33:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:49,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:33:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:49,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:33:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:49,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:33:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:49,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:49,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688229199] [2024-11-13 15:33:49,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688229199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:49,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:49,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:33:49,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042081236] [2024-11-13 15:33:49,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:49,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:49,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:49,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:49,462 INFO L87 Difference]: Start difference. First operand 1143 states and 1780 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:52,871 INFO L93 Difference]: Finished difference Result 2751 states and 4371 transitions. [2024-11-13 15:33:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:33:52,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:33:52,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:52,882 INFO L225 Difference]: With dead ends: 2751 [2024-11-13 15:33:52,882 INFO L226 Difference]: Without dead ends: 1629 [2024-11-13 15:33:52,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:33:52,887 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1146 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:52,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1299 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 15:33:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2024-11-13 15:33:52,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1143. [2024-11-13 15:33:52,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1054 states have (on average 1.5521821631878558) internal successors, (1636), 1057 states have internal predecessors, (1636), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-13 15:33:53,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1777 transitions. [2024-11-13 15:33:53,006 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1777 transitions. Word has length 178 [2024-11-13 15:33:53,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:53,006 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1777 transitions. [2024-11-13 15:33:53,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1777 transitions. [2024-11-13 15:33:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:33:53,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:53,010 INFO L215 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] [2024-11-13 15:33:53,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:33:53,010 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:53,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:53,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2009385618, now seen corresponding path program 1 times [2024-11-13 15:33:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901158470] [2024-11-13 15:33:53,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:53,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:53,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:53,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:33:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:53,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:33:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:53,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:33:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:53,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:33:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:53,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:53,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901158470] [2024-11-13 15:33:53,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901158470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:53,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:53,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:33:53,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727472884] [2024-11-13 15:33:53,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:53,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:53,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:53,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:53,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:53,455 INFO L87 Difference]: Start difference. First operand 1143 states and 1777 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:58,964 INFO L93 Difference]: Finished difference Result 3752 states and 5938 transitions. [2024-11-13 15:33:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:33:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:33:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:58,977 INFO L225 Difference]: With dead ends: 3752 [2024-11-13 15:33:58,977 INFO L226 Difference]: Without dead ends: 2630 [2024-11-13 15:33:58,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:33:58,982 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1703 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 2976 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:58,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 1613 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2976 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 15:33:58,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-11-13 15:33:59,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 1878. [2024-11-13 15:33:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1733 states have (on average 1.545874206578188) internal successors, (2679), 1738 states have internal predecessors, (2679), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-13 15:33:59,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2912 transitions. [2024-11-13 15:33:59,201 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2912 transitions. Word has length 178 [2024-11-13 15:33:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:59,201 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2912 transitions. [2024-11-13 15:33:59,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:33:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2912 transitions. [2024-11-13 15:33:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:33:59,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:59,206 INFO L215 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] [2024-11-13 15:33:59,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:33:59,206 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:59,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:59,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1086218192, now seen corresponding path program 1 times [2024-11-13 15:33:59,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:59,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242207752] [2024-11-13 15:33:59,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:59,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:59,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:33:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:59,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:33:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:59,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:33:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:59,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:33:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:59,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:33:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:59,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:59,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242207752] [2024-11-13 15:33:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242207752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:59,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:59,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:33:59,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526491249] [2024-11-13 15:33:59,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:59,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:59,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:59,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:59,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:59,574 INFO L87 Difference]: Start difference. First operand 1878 states and 2912 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:02,785 INFO L93 Difference]: Finished difference Result 4475 states and 7062 transitions. [2024-11-13 15:34:02,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:02,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:02,799 INFO L225 Difference]: With dead ends: 4475 [2024-11-13 15:34:02,800 INFO L226 Difference]: Without dead ends: 2618 [2024-11-13 15:34:02,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:34:02,805 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1145 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:02,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1299 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 15:34:02,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2024-11-13 15:34:02,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 1878. [2024-11-13 15:34:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1733 states have (on average 1.5429890363531449) internal successors, (2674), 1738 states have internal predecessors, (2674), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-13 15:34:03,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2907 transitions. [2024-11-13 15:34:03,015 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2907 transitions. Word has length 178 [2024-11-13 15:34:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:03,016 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2907 transitions. [2024-11-13 15:34:03,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2907 transitions. [2024-11-13 15:34:03,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:03,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:03,019 INFO L215 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] [2024-11-13 15:34:03,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:34:03,020 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:03,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:03,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1472080594, now seen corresponding path program 1 times [2024-11-13 15:34:03,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:03,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584304955] [2024-11-13 15:34:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:03,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:03,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:03,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:03,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:03,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:03,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:03,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:03,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584304955] [2024-11-13 15:34:03,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584304955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:03,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:03,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:03,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707053594] [2024-11-13 15:34:03,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:03,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:03,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:03,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:03,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:03,416 INFO L87 Difference]: Start difference. First operand 1878 states and 2907 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:09,329 INFO L93 Difference]: Finished difference Result 6423 states and 10093 transitions. [2024-11-13 15:34:09,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:34:09,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:09,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:09,353 INFO L225 Difference]: With dead ends: 6423 [2024-11-13 15:34:09,353 INFO L226 Difference]: Without dead ends: 4566 [2024-11-13 15:34:09,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:34:09,360 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 1594 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 3469 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 3533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:09,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1613 Valid, 2569 Invalid, 3533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3469 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 15:34:09,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2024-11-13 15:34:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 3352. [2024-11-13 15:34:09,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3095 states have (on average 1.5373182552504039) internal successors, (4758), 3104 states have internal predecessors, (4758), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-13 15:34:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5181 transitions. [2024-11-13 15:34:09,707 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5181 transitions. Word has length 178 [2024-11-13 15:34:09,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:09,707 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 5181 transitions. [2024-11-13 15:34:09,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:09,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5181 transitions. [2024-11-13 15:34:09,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:09,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:09,712 INFO L215 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] [2024-11-13 15:34:09,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:34:09,713 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:09,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:09,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1207433104, now seen corresponding path program 1 times [2024-11-13 15:34:09,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:09,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566251183] [2024-11-13 15:34:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:09,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:09,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:09,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:10,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:10,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:10,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:10,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:10,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566251183] [2024-11-13 15:34:10,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566251183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:10,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:10,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942490079] [2024-11-13 15:34:10,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:10,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:10,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:10,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:10,096 INFO L87 Difference]: Start difference. First operand 3352 states and 5181 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:13,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:13,303 INFO L93 Difference]: Finished difference Result 7919 states and 12437 transitions. [2024-11-13 15:34:13,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:13,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:13,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:13,325 INFO L225 Difference]: With dead ends: 7919 [2024-11-13 15:34:13,325 INFO L226 Difference]: Without dead ends: 4588 [2024-11-13 15:34:13,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:34:13,335 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1149 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:13,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 1299 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 15:34:13,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4588 states. [2024-11-13 15:34:13,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4588 to 3352. [2024-11-13 15:34:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3095 states have (on average 1.534410339256866) internal successors, (4749), 3104 states have internal predecessors, (4749), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-13 15:34:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5172 transitions. [2024-11-13 15:34:13,722 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5172 transitions. Word has length 178 [2024-11-13 15:34:13,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:13,722 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 5172 transitions. [2024-11-13 15:34:13,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:13,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5172 transitions. [2024-11-13 15:34:13,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:13,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:13,727 INFO L215 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] [2024-11-13 15:34:13,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:34:13,729 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:13,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1156408558, now seen corresponding path program 1 times [2024-11-13 15:34:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:13,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022166096] [2024-11-13 15:34:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:13,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:13,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:14,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:14,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:14,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:14,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:14,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022166096] [2024-11-13 15:34:14,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022166096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:14,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:14,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:14,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066112011] [2024-11-13 15:34:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:14,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:14,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:14,069 INFO L87 Difference]: Start difference. First operand 3352 states and 5172 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:16,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:16,753 INFO L93 Difference]: Finished difference Result 7899 states and 12370 transitions. [2024-11-13 15:34:16,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:16,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:16,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:16,778 INFO L225 Difference]: With dead ends: 7899 [2024-11-13 15:34:16,778 INFO L226 Difference]: Without dead ends: 4568 [2024-11-13 15:34:16,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:34:16,821 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1312 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:16,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 1091 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:34:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2024-11-13 15:34:17,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 3352. [2024-11-13 15:34:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3095 states have (on average 1.5315024232633279) internal successors, (4740), 3104 states have internal predecessors, (4740), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-13 15:34:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5163 transitions. [2024-11-13 15:34:17,179 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5163 transitions. Word has length 178 [2024-11-13 15:34:17,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:17,180 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 5163 transitions. [2024-11-13 15:34:17,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5163 transitions. [2024-11-13 15:34:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:17,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:17,187 INFO L215 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] [2024-11-13 15:34:17,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:34:17,187 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:17,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:17,190 INFO L85 PathProgramCache]: Analyzing trace with hash 740570900, now seen corresponding path program 1 times [2024-11-13 15:34:17,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:17,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82411592] [2024-11-13 15:34:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:17,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:17,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:17,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:17,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:17,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:17,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:17,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82411592] [2024-11-13 15:34:17,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82411592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:17,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:17,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:17,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213526465] [2024-11-13 15:34:17,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:17,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:17,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:17,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:17,552 INFO L87 Difference]: Start difference. First operand 3352 states and 5163 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:20,697 INFO L93 Difference]: Finished difference Result 7889 states and 12323 transitions. [2024-11-13 15:34:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:20,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:20,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:20,719 INFO L225 Difference]: With dead ends: 7889 [2024-11-13 15:34:20,719 INFO L226 Difference]: Without dead ends: 4558 [2024-11-13 15:34:20,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:34:20,730 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1144 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:20,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1299 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 15:34:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4558 states. [2024-11-13 15:34:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4558 to 3352. [2024-11-13 15:34:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3095 states have (on average 1.52859450726979) internal successors, (4731), 3104 states have internal predecessors, (4731), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-13 15:34:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5154 transitions. [2024-11-13 15:34:21,157 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5154 transitions. Word has length 178 [2024-11-13 15:34:21,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:21,158 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 5154 transitions. [2024-11-13 15:34:21,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5154 transitions. [2024-11-13 15:34:21,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:21,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:21,163 INFO L215 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] [2024-11-13 15:34:21,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 15:34:21,165 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:21,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1078858450, now seen corresponding path program 1 times [2024-11-13 15:34:21,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:21,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258958989] [2024-11-13 15:34:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:21,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:21,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:21,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:21,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:21,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:21,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:21,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:21,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:21,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258958989] [2024-11-13 15:34:21,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258958989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:21,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:21,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:21,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616002078] [2024-11-13 15:34:21,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:21,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:21,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:21,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:21,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:21,537 INFO L87 Difference]: Start difference. First operand 3352 states and 5154 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:27,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:27,583 INFO L93 Difference]: Finished difference Result 11735 states and 18253 transitions. [2024-11-13 15:34:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:34:27,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:27,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:27,622 INFO L225 Difference]: With dead ends: 11735 [2024-11-13 15:34:27,622 INFO L226 Difference]: Without dead ends: 8404 [2024-11-13 15:34:27,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:34:27,636 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 1574 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:27,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 2569 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3362 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 15:34:27,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2024-11-13 15:34:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 6341. [2024-11-13 15:34:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6341 states, 5860 states have (on average 1.5237201365187714) internal successors, (8929), 5877 states have internal predecessors, (8929), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-13 15:34:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6341 states to 6341 states and 9750 transitions. [2024-11-13 15:34:28,365 INFO L78 Accepts]: Start accepts. Automaton has 6341 states and 9750 transitions. Word has length 178 [2024-11-13 15:34:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:28,365 INFO L471 AbstractCegarLoop]: Abstraction has 6341 states and 9750 transitions. [2024-11-13 15:34:28,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 6341 states and 9750 transitions. [2024-11-13 15:34:28,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:28,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:28,372 INFO L215 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] [2024-11-13 15:34:28,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:34:28,372 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:28,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:28,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1505412948, now seen corresponding path program 1 times [2024-11-13 15:34:28,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:28,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321827156] [2024-11-13 15:34:28,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:28,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:28,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:28,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:28,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:28,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:28,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:28,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:28,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:28,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321827156] [2024-11-13 15:34:28,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321827156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:28,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:28,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:28,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343470316] [2024-11-13 15:34:28,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:28,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:28,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:28,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:28,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:28,703 INFO L87 Difference]: Start difference. First operand 6341 states and 9750 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:32,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:32,024 INFO L93 Difference]: Finished difference Result 14783 states and 23038 transitions. [2024-11-13 15:34:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:32,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:32,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:32,064 INFO L225 Difference]: With dead ends: 14783 [2024-11-13 15:34:32,064 INFO L226 Difference]: Without dead ends: 8463 [2024-11-13 15:34:32,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:34:32,080 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1191 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:32,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 1296 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 15:34:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2024-11-13 15:34:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 6341. [2024-11-13 15:34:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6341 states, 5860 states have (on average 1.5208191126279864) internal successors, (8912), 5877 states have internal predecessors, (8912), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-13 15:34:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6341 states to 6341 states and 9733 transitions. [2024-11-13 15:34:33,108 INFO L78 Accepts]: Start accepts. Automaton has 6341 states and 9733 transitions. Word has length 178 [2024-11-13 15:34:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:33,109 INFO L471 AbstractCegarLoop]: Abstraction has 6341 states and 9733 transitions. [2024-11-13 15:34:33,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6341 states and 9733 transitions. [2024-11-13 15:34:33,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:33,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:33,117 INFO L215 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] [2024-11-13 15:34:33,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:34:33,118 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:33,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:33,118 INFO L85 PathProgramCache]: Analyzing trace with hash 964983442, now seen corresponding path program 1 times [2024-11-13 15:34:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:33,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467928009] [2024-11-13 15:34:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:33,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:33,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:33,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:33,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:33,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:33,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:33,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:33,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:33,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467928009] [2024-11-13 15:34:33,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467928009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:33,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:33,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:33,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434537754] [2024-11-13 15:34:33,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:33,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:33,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:33,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:33,562 INFO L87 Difference]: Start difference. First operand 6341 states and 9733 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:41,021 INFO L93 Difference]: Finished difference Result 25064 states and 38881 transitions. [2024-11-13 15:34:41,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:34:41,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:41,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:41,097 INFO L225 Difference]: With dead ends: 25064 [2024-11-13 15:34:41,097 INFO L226 Difference]: Without dead ends: 18744 [2024-11-13 15:34:41,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:34:41,118 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 2012 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 3383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:41,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 2555 Invalid, 3383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3316 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 15:34:41,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18744 states. [2024-11-13 15:34:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18744 to 12215. [2024-11-13 15:34:42,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12215 states, 11302 states have (on average 1.5179614227570342) internal successors, (17156), 11335 states have internal predecessors, (17156), 682 states have call successors, (682), 198 states have call predecessors, (682), 230 states have return successors, (957), 713 states have call predecessors, (957), 682 states have call successors, (957) [2024-11-13 15:34:42,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12215 states to 12215 states and 18795 transitions. [2024-11-13 15:34:42,823 INFO L78 Accepts]: Start accepts. Automaton has 12215 states and 18795 transitions. Word has length 178 [2024-11-13 15:34:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:42,824 INFO L471 AbstractCegarLoop]: Abstraction has 12215 states and 18795 transitions. [2024-11-13 15:34:42,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 12215 states and 18795 transitions. [2024-11-13 15:34:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:42,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:42,836 INFO L215 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] [2024-11-13 15:34:42,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 15:34:42,836 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:42,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:42,837 INFO L85 PathProgramCache]: Analyzing trace with hash 809002900, now seen corresponding path program 1 times [2024-11-13 15:34:42,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:42,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976759791] [2024-11-13 15:34:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:42,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:43,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:43,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:43,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:43,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:43,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:43,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976759791] [2024-11-13 15:34:43,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976759791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:43,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:43,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:43,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655788749] [2024-11-13 15:34:43,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:43,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:43,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:43,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:43,300 INFO L87 Difference]: Start difference. First operand 12215 states and 18795 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:52,463 INFO L93 Difference]: Finished difference Result 48312 states and 75129 transitions. [2024-11-13 15:34:52,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:34:52,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:34:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:52,610 INFO L225 Difference]: With dead ends: 48312 [2024-11-13 15:34:52,610 INFO L226 Difference]: Without dead ends: 36118 [2024-11-13 15:34:52,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:34:52,666 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 1668 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 3990 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 4056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:52,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 2559 Invalid, 4056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3990 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 15:34:52,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36118 states. [2024-11-13 15:34:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36118 to 24024. [2024-11-13 15:34:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24024 states, 22263 states have (on average 1.5174055607959394) internal successors, (33782), 22328 states have internal predecessors, (33782), 1306 states have call successors, (1306), 390 states have call predecessors, (1306), 454 states have return successors, (2099), 1369 states have call predecessors, (2099), 1306 states have call successors, (2099) [2024-11-13 15:34:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24024 states to 24024 states and 37187 transitions. [2024-11-13 15:34:55,597 INFO L78 Accepts]: Start accepts. Automaton has 24024 states and 37187 transitions. Word has length 178 [2024-11-13 15:34:55,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:55,597 INFO L471 AbstractCegarLoop]: Abstraction has 24024 states and 37187 transitions. [2024-11-13 15:34:55,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:34:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 24024 states and 37187 transitions. [2024-11-13 15:34:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:34:55,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:55,610 INFO L215 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] [2024-11-13 15:34:55,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:34:55,610 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:55,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:55,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1219613266, now seen corresponding path program 1 times [2024-11-13 15:34:55,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:55,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246195543] [2024-11-13 15:34:55,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:55,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:55,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:34:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:55,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:34:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:55,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:34:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:55,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:34:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:55,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:34:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:34:55,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:55,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246195543] [2024-11-13 15:34:55,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246195543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:55,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:55,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:34:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445944793] [2024-11-13 15:34:55,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:55,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:55,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:55,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:55,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:55,929 INFO L87 Difference]: Start difference. First operand 24024 states and 37187 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:35:07,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:07,292 INFO L93 Difference]: Finished difference Result 94423 states and 147679 transitions. [2024-11-13 15:35:07,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:35:07,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 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 178 [2024-11-13 15:35:07,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:07,541 INFO L225 Difference]: With dead ends: 94423 [2024-11-13 15:35:07,541 INFO L226 Difference]: Without dead ends: 70420 [2024-11-13 15:35:07,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:35:07,639 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 1939 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 3286 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:35:07,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 2559 Invalid, 3353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3286 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:35:07,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70420 states. [2024-11-13 15:35:13,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70420 to 47609. [2024-11-13 15:35:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47609 states, 44184 states have (on average 1.5178345102299475) internal successors, (67064), 44313 states have internal predecessors, (67064), 2522 states have call successors, (2522), 774 states have call predecessors, (2522), 902 states have return successors, (4837), 2649 states have call predecessors, (4837), 2522 states have call successors, (4837) [2024-11-13 15:35:14,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47609 states to 47609 states and 74423 transitions. [2024-11-13 15:35:14,151 INFO L78 Accepts]: Start accepts. Automaton has 47609 states and 74423 transitions. Word has length 178 [2024-11-13 15:35:14,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:14,151 INFO L471 AbstractCegarLoop]: Abstraction has 47609 states and 74423 transitions. [2024-11-13 15:35:14,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:35:14,151 INFO L276 IsEmpty]: Start isEmpty. Operand 47609 states and 74423 transitions. [2024-11-13 15:35:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 15:35:14,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:14,167 INFO L215 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] [2024-11-13 15:35:14,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:35:14,167 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:14,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:14,168 INFO L85 PathProgramCache]: Analyzing trace with hash -568256556, now seen corresponding path program 1 times [2024-11-13 15:35:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:14,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606658497] [2024-11-13 15:35:14,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:14,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:14,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:35:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:14,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:35:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:14,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:35:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:14,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 15:35:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:14,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:35:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:35:14,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:35:14,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606658497] [2024-11-13 15:35:14,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606658497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:14,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:14,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:35:14,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803620754] [2024-11-13 15:35:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:14,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:35:14,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:35:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:35:14,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:35:14,697 INFO L87 Difference]: Start difference. First operand 47609 states and 74423 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)