./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a46e7920fd800fb5978581c250ecd4216776e6eac1b8dfb89d2f8a9c2732a33c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:31:53,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:31:53,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:31:53,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:31:53,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:31:53,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:31:53,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:31:53,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:31:53,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:31:53,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:31:53,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:31:53,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:31:53,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:31:53,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:31:53,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:31:53,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:31:53,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:31:53,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:31:53,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:31:53,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:31:53,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:31:53,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:31:53,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:31:53,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:31:53,291 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:31:53,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:31:53,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:31:53,291 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:31:53,291 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:31:53,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:53,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:53,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:53,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:53,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:31:53,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:53,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:53,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:53,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:53,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:31:53,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:31:53,294 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:31:53,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:31:53,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:31:53,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:31:53,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:31:53,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:31:53,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:31:53,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:31:53,295 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_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a46e7920fd800fb5978581c250ecd4216776e6eac1b8dfb89d2f8a9c2732a33c [2024-11-28 03:31:53,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:31:53,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:31:53,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:31:53,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:31:53,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:31:53,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-28 03:31:57,356 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/data/c0f2660de/448706a408c14c63af907cc6324afd36/FLAG5f6c8b363 [2024-11-28 03:31:57,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:31:57,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-28 03:31:57,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/data/c0f2660de/448706a408c14c63af907cc6324afd36/FLAG5f6c8b363 [2024-11-28 03:31:57,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/data/c0f2660de/448706a408c14c63af907cc6324afd36 [2024-11-28 03:31:57,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:31:57,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:31:57,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:31:57,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:31:57,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:31:57,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:57" (1/1) ... [2024-11-28 03:31:57,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c0ca06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:57, skipping insertion in model container [2024-11-28 03:31:57,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:57" (1/1) ... [2024-11-28 03:31:57,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:31:58,098 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_635a3899-603f-40ce-8494-aba3f95535bf/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[914,927] [2024-11-28 03:31:58,190 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_635a3899-603f-40ce-8494-aba3f95535bf/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2024-11-28 03:31:58,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:31:58,364 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:31:58,380 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_635a3899-603f-40ce-8494-aba3f95535bf/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[914,927] [2024-11-28 03:31:58,414 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_635a3899-603f-40ce-8494-aba3f95535bf/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2024-11-28 03:31:58,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:31:58,567 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:31:58,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58 WrapperNode [2024-11-28 03:31:58,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:31:58,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:31:58,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:31:58,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:31:58,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,718 INFO L138 Inliner]: procedures = 77, calls = 93, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1049 [2024-11-28 03:31:58,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:31:58,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:31:58,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:31:58,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:31:58,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,790 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:31:58,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,817 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:31:58,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:31:58,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:31:58,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:31:58,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (1/1) ... [2024-11-28 03:31:58,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:58,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:58,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:31:58,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:31:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:31:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 03:31:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 03:31:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-28 03:31:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-28 03:31:58,968 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-28 03:31:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-28 03:31:58,968 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-28 03:31:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-28 03:31:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-28 03:31:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-28 03:31:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-28 03:31:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-28 03:31:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-28 03:31:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-28 03:31:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-28 03:31:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-28 03:31:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-28 03:31:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-28 03:31:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-28 03:31:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-28 03:31:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-28 03:31:58,973 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-28 03:31:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:31:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-28 03:31:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-28 03:31:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-28 03:31:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-28 03:31:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:31:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:31:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-28 03:31:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-28 03:31:59,210 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:31:59,213 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:32:01,125 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-28 03:32:01,125 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:32:01,168 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:32:01,168 INFO L312 CfgBuilder]: Removed 38 assume(true) statements. [2024-11-28 03:32:01,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:01 BoogieIcfgContainer [2024-11-28 03:32:01,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:32:01,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:32:01,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:32:01,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:32:01,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:31:57" (1/3) ... [2024-11-28 03:32:01,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41157639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:01, skipping insertion in model container [2024-11-28 03:32:01,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:58" (2/3) ... [2024-11-28 03:32:01,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41157639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:01, skipping insertion in model container [2024-11-28 03:32:01,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:01" (3/3) ... [2024-11-28 03:32:01,190 INFO L128 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-28 03:32:01,212 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:32:01,218 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_2.cil-1+token_ring.12.cil-2.c that has 15 procedures, 477 locations, 1 initial locations, 19 loop locations, and 2 error locations. [2024-11-28 03:32:01,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:32:01,368 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;@6c4ab4f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:32:01,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:32:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 477 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 426 states have internal predecessors, (693), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:32:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:32:01,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:01,393 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:01,394 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:01,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:01,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1300217043, now seen corresponding path program 1 times [2024-11-28 03:32:01,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:01,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432244218] [2024-11-28 03:32:01,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:01,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:02,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:02,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:02,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432244218] [2024-11-28 03:32:02,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432244218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:02,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:02,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:32:02,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910636623] [2024-11-28 03:32:02,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:02,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:32:02,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:02,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:32:02,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:32:02,233 INFO L87 Difference]: Start difference. First operand has 477 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 426 states have internal predecessors, (693), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:03,984 INFO L93 Difference]: Finished difference Result 1025 states and 1654 transitions. [2024-11-28 03:32:03,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:32:03,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-28 03:32:03,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:04,005 INFO L225 Difference]: With dead ends: 1025 [2024-11-28 03:32:04,006 INFO L226 Difference]: Without dead ends: 566 [2024-11-28 03:32:04,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:04,023 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 476 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:04,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1512 Invalid, 1154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:32:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-28 03:32:04,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 559. [2024-11-28 03:32:04,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 484 states have (on average 1.537190082644628) internal successors, (744), 490 states have internal predecessors, (744), 51 states have call successors, (51), 21 states have call predecessors, (51), 22 states have return successors, (54), 50 states have call predecessors, (54), 49 states have call successors, (54) [2024-11-28 03:32:04,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 849 transitions. [2024-11-28 03:32:04,188 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 849 transitions. Word has length 62 [2024-11-28 03:32:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:04,188 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 849 transitions. [2024-11-28 03:32:04,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 849 transitions. [2024-11-28 03:32:04,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:32:04,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:04,193 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:04,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:32:04,194 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:04,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:04,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1503553043, now seen corresponding path program 1 times [2024-11-28 03:32:04,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:04,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628835501] [2024-11-28 03:32:04,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:04,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:04,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:04,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628835501] [2024-11-28 03:32:04,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628835501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:04,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:04,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:32:04,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034545359] [2024-11-28 03:32:04,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:04,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:04,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:04,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:04,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:04,631 INFO L87 Difference]: Start difference. First operand 559 states and 849 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:06,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:06,458 INFO L93 Difference]: Finished difference Result 864 states and 1268 transitions. [2024-11-28 03:32:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:32:06,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-28 03:32:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:06,472 INFO L225 Difference]: With dead ends: 864 [2024-11-28 03:32:06,472 INFO L226 Difference]: Without dead ends: 695 [2024-11-28 03:32:06,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:32:06,478 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 1054 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:06,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1684 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:32:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-28 03:32:06,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 651. [2024-11-28 03:32:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 556 states have (on average 1.5179856115107915) internal successors, (844), 564 states have internal predecessors, (844), 62 states have call successors, (62), 28 states have call predecessors, (62), 31 states have return successors, (73), 62 states have call predecessors, (73), 60 states have call successors, (73) [2024-11-28 03:32:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 979 transitions. [2024-11-28 03:32:06,607 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 979 transitions. Word has length 62 [2024-11-28 03:32:06,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:06,608 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 979 transitions. [2024-11-28 03:32:06,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 979 transitions. [2024-11-28 03:32:06,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:32:06,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:06,619 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:06,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:32:06,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:06,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:06,621 INFO L85 PathProgramCache]: Analyzing trace with hash -852252207, now seen corresponding path program 1 times [2024-11-28 03:32:06,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:06,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302592051] [2024-11-28 03:32:06,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:06,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:06,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:06,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302592051] [2024-11-28 03:32:06,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302592051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:06,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:06,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:32:06,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277250000] [2024-11-28 03:32:06,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:06,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:06,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:06,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:06,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:06,824 INFO L87 Difference]: Start difference. First operand 651 states and 979 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:32:06,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:06,950 INFO L93 Difference]: Finished difference Result 911 states and 1340 transitions. [2024-11-28 03:32:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:32:06,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-11-28 03:32:06,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:06,958 INFO L225 Difference]: With dead ends: 911 [2024-11-28 03:32:06,958 INFO L226 Difference]: Without dead ends: 656 [2024-11-28 03:32:06,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:06,963 INFO L435 NwaCegarLoop]: 718 mSDtfsCounter, 0 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:06,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3585 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:06,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-28 03:32:07,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 656. [2024-11-28 03:32:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 560 states have (on average 1.5107142857142857) internal successors, (846), 568 states have internal predecessors, (846), 62 states have call successors, (62), 28 states have call predecessors, (62), 32 states have return successors, (74), 63 states have call predecessors, (74), 60 states have call successors, (74) [2024-11-28 03:32:07,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 982 transitions. [2024-11-28 03:32:07,057 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 982 transitions. Word has length 62 [2024-11-28 03:32:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:07,058 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 982 transitions. [2024-11-28 03:32:07,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:32:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 982 transitions. [2024-11-28 03:32:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:32:07,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:07,066 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:07,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:32:07,066 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:07,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1696257709, now seen corresponding path program 1 times [2024-11-28 03:32:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077406124] [2024-11-28 03:32:07,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:07,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:07,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077406124] [2024-11-28 03:32:07,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077406124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:07,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:07,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:32:07,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52837628] [2024-11-28 03:32:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:07,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:07,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:07,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:07,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:07,254 INFO L87 Difference]: Start difference. First operand 656 states and 982 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:32:08,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:08,306 INFO L93 Difference]: Finished difference Result 2582 states and 3666 transitions. [2024-11-28 03:32:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:32:08,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2024-11-28 03:32:08,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:08,323 INFO L225 Difference]: With dead ends: 2582 [2024-11-28 03:32:08,324 INFO L226 Difference]: Without dead ends: 2322 [2024-11-28 03:32:08,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:32:08,329 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 1886 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:08,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1892 Valid, 2819 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:32:08,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2024-11-28 03:32:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 2192. [2024-11-28 03:32:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1757 states have (on average 1.3870233352305066) internal successors, (2437), 1793 states have internal predecessors, (2437), 227 states have call successors, (227), 172 states have call predecessors, (227), 206 states have return successors, (343), 230 states have call predecessors, (343), 225 states have call successors, (343) [2024-11-28 03:32:08,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3007 transitions. [2024-11-28 03:32:08,626 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3007 transitions. Word has length 62 [2024-11-28 03:32:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:08,626 INFO L471 AbstractCegarLoop]: Abstraction has 2192 states and 3007 transitions. [2024-11-28 03:32:08,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:32:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3007 transitions. [2024-11-28 03:32:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:32:08,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:08,630 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:08,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:32:08,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:08,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:08,631 INFO L85 PathProgramCache]: Analyzing trace with hash -777283086, now seen corresponding path program 1 times [2024-11-28 03:32:08,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:08,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865376649] [2024-11-28 03:32:08,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:08,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:08,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:08,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865376649] [2024-11-28 03:32:08,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865376649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:08,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:08,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:32:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156765908] [2024-11-28 03:32:08,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:08,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:08,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:08,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:08,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:08,793 INFO L87 Difference]: Start difference. First operand 2192 states and 3007 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:32:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:09,019 INFO L93 Difference]: Finished difference Result 4033 states and 5498 transitions. [2024-11-28 03:32:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:32:09,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-11-28 03:32:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:09,037 INFO L225 Difference]: With dead ends: 4033 [2024-11-28 03:32:09,037 INFO L226 Difference]: Without dead ends: 2237 [2024-11-28 03:32:09,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:09,044 INFO L435 NwaCegarLoop]: 718 mSDtfsCounter, 0 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:09,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3585 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2024-11-28 03:32:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2237. [2024-11-28 03:32:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 1793 states have (on average 1.3708867819297268) internal successors, (2458), 1829 states have internal predecessors, (2458), 227 states have call successors, (227), 172 states have call predecessors, (227), 215 states have return successors, (361), 239 states have call predecessors, (361), 225 states have call successors, (361) [2024-11-28 03:32:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3046 transitions. [2024-11-28 03:32:09,338 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3046 transitions. Word has length 62 [2024-11-28 03:32:09,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:09,339 INFO L471 AbstractCegarLoop]: Abstraction has 2237 states and 3046 transitions. [2024-11-28 03:32:09,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:32:09,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3046 transitions. [2024-11-28 03:32:09,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:32:09,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:09,341 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:09,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:32:09,341 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:09,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:09,344 INFO L85 PathProgramCache]: Analyzing trace with hash -715243472, now seen corresponding path program 1 times [2024-11-28 03:32:09,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:09,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560343803] [2024-11-28 03:32:09,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:09,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:09,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:09,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560343803] [2024-11-28 03:32:09,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560343803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:09,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:09,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:32:09,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783184202] [2024-11-28 03:32:09,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:09,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:09,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:09,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:09,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:09,620 INFO L87 Difference]: Start difference. First operand 2237 states and 3046 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:11,408 INFO L93 Difference]: Finished difference Result 3933 states and 5235 transitions. [2024-11-28 03:32:11,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:32:11,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-28 03:32:11,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:11,427 INFO L225 Difference]: With dead ends: 3933 [2024-11-28 03:32:11,427 INFO L226 Difference]: Without dead ends: 2439 [2024-11-28 03:32:11,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:32:11,432 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1061 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:11,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1490 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:32:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2024-11-28 03:32:11,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2247. [2024-11-28 03:32:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 1805 states have (on average 1.3645429362880885) internal successors, (2463), 1836 states have internal predecessors, (2463), 228 states have call successors, (228), 173 states have call predecessors, (228), 212 states have return successors, (345), 241 states have call predecessors, (345), 226 states have call successors, (345) [2024-11-28 03:32:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 3036 transitions. [2024-11-28 03:32:11,645 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 3036 transitions. Word has length 62 [2024-11-28 03:32:11,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:11,645 INFO L471 AbstractCegarLoop]: Abstraction has 2247 states and 3036 transitions. [2024-11-28 03:32:11,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:11,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 3036 transitions. [2024-11-28 03:32:11,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:32:11,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:11,647 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:11,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:32:11,648 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:11,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:11,648 INFO L85 PathProgramCache]: Analyzing trace with hash -292541646, now seen corresponding path program 1 times [2024-11-28 03:32:11,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:11,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341111797] [2024-11-28 03:32:11,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:11,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:11,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:11,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341111797] [2024-11-28 03:32:11,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341111797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:11,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:11,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:32:11,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501823132] [2024-11-28 03:32:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:11,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:32:11,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:11,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:32:11,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:32:11,737 INFO L87 Difference]: Start difference. First operand 2247 states and 3036 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:12,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:12,960 INFO L93 Difference]: Finished difference Result 5876 states and 7810 transitions. [2024-11-28 03:32:12,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:32:12,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-28 03:32:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:12,989 INFO L225 Difference]: With dead ends: 5876 [2024-11-28 03:32:12,989 INFO L226 Difference]: Without dead ends: 4028 [2024-11-28 03:32:12,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:32:12,996 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 1017 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:12,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 758 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:32:13,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2024-11-28 03:32:13,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 4024. [2024-11-28 03:32:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 3169 states have (on average 1.3124013884506154) internal successors, (4159), 3230 states have internal predecessors, (4159), 430 states have call successors, (430), 339 states have call predecessors, (430), 423 states have return successors, (723), 461 states have call predecessors, (723), 428 states have call successors, (723) [2024-11-28 03:32:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 5312 transitions. [2024-11-28 03:32:13,363 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 5312 transitions. Word has length 62 [2024-11-28 03:32:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:13,364 INFO L471 AbstractCegarLoop]: Abstraction has 4024 states and 5312 transitions. [2024-11-28 03:32:13,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:32:13,364 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 5312 transitions. [2024-11-28 03:32:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 03:32:13,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:13,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:13,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:32:13,368 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:13,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1571683742, now seen corresponding path program 1 times [2024-11-28 03:32:13,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:13,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092230229] [2024-11-28 03:32:13,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:13,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:13,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:13,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092230229] [2024-11-28 03:32:13,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092230229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:13,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:13,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:13,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348668567] [2024-11-28 03:32:13,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:13,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:13,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:13,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:13,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:13,435 INFO L87 Difference]: Start difference. First operand 4024 states and 5312 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:32:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:14,059 INFO L93 Difference]: Finished difference Result 10001 states and 13178 transitions. [2024-11-28 03:32:14,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:14,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-28 03:32:14,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:14,105 INFO L225 Difference]: With dead ends: 10001 [2024-11-28 03:32:14,106 INFO L226 Difference]: Without dead ends: 6355 [2024-11-28 03:32:14,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:14,120 INFO L435 NwaCegarLoop]: 732 mSDtfsCounter, 102 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:14,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1418 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:14,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2024-11-28 03:32:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6221. [2024-11-28 03:32:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6221 states, 4828 states have (on average 1.2947390223695112) internal successors, (6251), 4906 states have internal predecessors, (6251), 691 states have call successors, (691), 571 states have call predecessors, (691), 700 states have return successors, (1177), 750 states have call predecessors, (1177), 689 states have call successors, (1177) [2024-11-28 03:32:14,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6221 states to 6221 states and 8119 transitions. [2024-11-28 03:32:14,803 INFO L78 Accepts]: Start accepts. Automaton has 6221 states and 8119 transitions. Word has length 63 [2024-11-28 03:32:14,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:14,804 INFO L471 AbstractCegarLoop]: Abstraction has 6221 states and 8119 transitions. [2024-11-28 03:32:14,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:32:14,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6221 states and 8119 transitions. [2024-11-28 03:32:14,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:32:14,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:14,809 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:14,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:32:14,809 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:14,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash -56091910, now seen corresponding path program 1 times [2024-11-28 03:32:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314732631] [2024-11-28 03:32:14,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:14,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:14,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314732631] [2024-11-28 03:32:14,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314732631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:14,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:14,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:32:14,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136113573] [2024-11-28 03:32:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:14,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:32:14,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:14,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:32:14,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:32:14,973 INFO L87 Difference]: Start difference. First operand 6221 states and 8119 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:32:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:15,842 INFO L93 Difference]: Finished difference Result 7339 states and 9498 transitions. [2024-11-28 03:32:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:32:15,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2024-11-28 03:32:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:15,898 INFO L225 Difference]: With dead ends: 7339 [2024-11-28 03:32:15,898 INFO L226 Difference]: Without dead ends: 7336 [2024-11-28 03:32:15,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:32:15,906 INFO L435 NwaCegarLoop]: 731 mSDtfsCounter, 1349 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:15,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 817 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:32:15,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7336 states. [2024-11-28 03:32:16,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7336 to 7237. [2024-11-28 03:32:16,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7237 states, 5593 states have (on average 1.284283926336492) internal successors, (7183), 5680 states have internal predecessors, (7183), 817 states have call successors, (817), 685 states have call predecessors, (817), 825 states have return successors, (1370), 878 states have call predecessors, (1370), 816 states have call successors, (1370) [2024-11-28 03:32:16,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7237 states to 7237 states and 9370 transitions. [2024-11-28 03:32:16,848 INFO L78 Accepts]: Start accepts. Automaton has 7237 states and 9370 transitions. Word has length 68 [2024-11-28 03:32:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:16,849 INFO L471 AbstractCegarLoop]: Abstraction has 7237 states and 9370 transitions. [2024-11-28 03:32:16,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:32:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7237 states and 9370 transitions. [2024-11-28 03:32:16,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 03:32:16,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:16,857 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:16,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:32:16,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:16,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:16,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1740266687, now seen corresponding path program 1 times [2024-11-28 03:32:16,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:16,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156039849] [2024-11-28 03:32:16,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:16,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:17,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:17,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156039849] [2024-11-28 03:32:17,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156039849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:17,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935858228] [2024-11-28 03:32:17,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:17,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:17,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:17,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:32:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:17,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:32:17,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:17,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:17,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:17,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935858228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:32:17,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:32:17,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-28 03:32:17,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230990154] [2024-11-28 03:32:17,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:17,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:32:17,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:17,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:32:17,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:32:17,914 INFO L87 Difference]: Start difference. First operand 7237 states and 9370 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:32:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:20,308 INFO L93 Difference]: Finished difference Result 15113 states and 19343 transitions. [2024-11-28 03:32:20,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:32:20,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 69 [2024-11-28 03:32:20,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:20,419 INFO L225 Difference]: With dead ends: 15113 [2024-11-28 03:32:20,419 INFO L226 Difference]: Without dead ends: 15110 [2024-11-28 03:32:20,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:32:20,431 INFO L435 NwaCegarLoop]: 902 mSDtfsCounter, 1676 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:20,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2590 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:32:20,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15110 states. [2024-11-28 03:32:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15110 to 13800. [2024-11-28 03:32:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13800 states, 10632 states have (on average 1.273890142964635) internal successors, (13544), 10799 states have internal predecessors, (13544), 1549 states have call successors, (1549), 1319 states have call predecessors, (1549), 1617 states have return successors, (2637), 1688 states have call predecessors, (2637), 1548 states have call successors, (2637) [2024-11-28 03:32:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13800 states to 13800 states and 17730 transitions. [2024-11-28 03:32:22,402 INFO L78 Accepts]: Start accepts. Automaton has 13800 states and 17730 transitions. Word has length 69 [2024-11-28 03:32:22,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:22,402 INFO L471 AbstractCegarLoop]: Abstraction has 13800 states and 17730 transitions. [2024-11-28 03:32:22,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:32:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 13800 states and 17730 transitions. [2024-11-28 03:32:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 03:32:22,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:22,408 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:22,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:22,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:32:22,609 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:22,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash 582422911, now seen corresponding path program 2 times [2024-11-28 03:32:22,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:22,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076324844] [2024-11-28 03:32:22,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:32:22,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:22,644 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:32:22,644 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:32:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:22,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076324844] [2024-11-28 03:32:22,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076324844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:22,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:22,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:22,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236019734] [2024-11-28 03:32:22,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:22,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:22,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:22,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:22,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:22,695 INFO L87 Difference]: Start difference. First operand 13800 states and 17730 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:32:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:23,780 INFO L93 Difference]: Finished difference Result 20526 states and 26419 transitions. [2024-11-28 03:32:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:23,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2024-11-28 03:32:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:23,859 INFO L225 Difference]: With dead ends: 20526 [2024-11-28 03:32:23,860 INFO L226 Difference]: Without dead ends: 7950 [2024-11-28 03:32:23,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:23,913 INFO L435 NwaCegarLoop]: 794 mSDtfsCounter, 690 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:23,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 907 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:23,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7950 states. [2024-11-28 03:32:25,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7950 to 7852. [2024-11-28 03:32:25,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7852 states, 6085 states have (on average 1.2543960558751026) internal successors, (7633), 6166 states have internal predecessors, (7633), 883 states have call successors, (883), 741 states have call predecessors, (883), 882 states have return successors, (1383), 951 states have call predecessors, (1383), 882 states have call successors, (1383) [2024-11-28 03:32:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7852 states to 7852 states and 9899 transitions. [2024-11-28 03:32:25,578 INFO L78 Accepts]: Start accepts. Automaton has 7852 states and 9899 transitions. Word has length 71 [2024-11-28 03:32:25,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:25,579 INFO L471 AbstractCegarLoop]: Abstraction has 7852 states and 9899 transitions. [2024-11-28 03:32:25,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:32:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7852 states and 9899 transitions. [2024-11-28 03:32:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 03:32:25,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:25,584 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:25,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:32:25,585 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:25,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:25,586 INFO L85 PathProgramCache]: Analyzing trace with hash -19697090, now seen corresponding path program 1 times [2024-11-28 03:32:25,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:25,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919854519] [2024-11-28 03:32:25,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:25,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:32:25,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:25,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919854519] [2024-11-28 03:32:25,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919854519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:25,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:25,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:32:25,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118853265] [2024-11-28 03:32:25,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:25,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:25,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:25,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:25,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:25,810 INFO L87 Difference]: Start difference. First operand 7852 states and 9899 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:29,774 INFO L93 Difference]: Finished difference Result 22854 states and 28702 transitions. [2024-11-28 03:32:29,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:32:29,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 80 [2024-11-28 03:32:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:29,916 INFO L225 Difference]: With dead ends: 22854 [2024-11-28 03:32:29,916 INFO L226 Difference]: Without dead ends: 15404 [2024-11-28 03:32:29,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:32:29,960 INFO L435 NwaCegarLoop]: 454 mSDtfsCounter, 754 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:29,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1982 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:32:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15404 states. [2024-11-28 03:32:32,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15404 to 14761. [2024-11-28 03:32:32,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14761 states, 11303 states have (on average 1.2197646642484297) internal successors, (13787), 11492 states have internal predecessors, (13787), 1702 states have call successors, (1702), 1441 states have call predecessors, (1702), 1754 states have return successors, (2896), 1840 states have call predecessors, (2896), 1701 states have call successors, (2896) [2024-11-28 03:32:32,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14761 states to 14761 states and 18385 transitions. [2024-11-28 03:32:32,836 INFO L78 Accepts]: Start accepts. Automaton has 14761 states and 18385 transitions. Word has length 80 [2024-11-28 03:32:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:32,837 INFO L471 AbstractCegarLoop]: Abstraction has 14761 states and 18385 transitions. [2024-11-28 03:32:32,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 14761 states and 18385 transitions. [2024-11-28 03:32:32,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 03:32:32,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:32,852 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:32,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:32:32,853 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:32,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:32,854 INFO L85 PathProgramCache]: Analyzing trace with hash -770726274, now seen corresponding path program 1 times [2024-11-28 03:32:32,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:32,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350616536] [2024-11-28 03:32:32,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:32,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:32:33,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:33,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350616536] [2024-11-28 03:32:33,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350616536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:33,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:33,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:32:33,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411724967] [2024-11-28 03:32:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:33,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:32:33,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:33,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:32:33,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:32:33,157 INFO L87 Difference]: Start difference. First operand 14761 states and 18385 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:37,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:37,413 INFO L93 Difference]: Finished difference Result 26335 states and 32712 transitions. [2024-11-28 03:32:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:32:37,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-11-28 03:32:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:37,489 INFO L225 Difference]: With dead ends: 26335 [2024-11-28 03:32:37,489 INFO L226 Difference]: Without dead ends: 12585 [2024-11-28 03:32:37,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:32:37,525 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 1649 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:37,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 2052 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:32:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12585 states. [2024-11-28 03:32:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12585 to 11857. [2024-11-28 03:32:38,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11857 states, 9137 states have (on average 1.212980190434497) internal successors, (11083), 9280 states have internal predecessors, (11083), 1331 states have call successors, (1331), 1122 states have call predecessors, (1331), 1387 states have return successors, (2088), 1464 states have call predecessors, (2088), 1330 states have call successors, (2088) [2024-11-28 03:32:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11857 states to 11857 states and 14502 transitions. [2024-11-28 03:32:38,702 INFO L78 Accepts]: Start accepts. Automaton has 11857 states and 14502 transitions. Word has length 86 [2024-11-28 03:32:38,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:38,703 INFO L471 AbstractCegarLoop]: Abstraction has 11857 states and 14502 transitions. [2024-11-28 03:32:38,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:38,703 INFO L276 IsEmpty]: Start isEmpty. Operand 11857 states and 14502 transitions. [2024-11-28 03:32:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:32:38,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:38,723 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:38,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:32:38,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:38,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1764310039, now seen corresponding path program 1 times [2024-11-28 03:32:38,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:38,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627600404] [2024-11-28 03:32:38,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:38,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 17 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-28 03:32:39,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:39,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627600404] [2024-11-28 03:32:39,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627600404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:39,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140722971] [2024-11-28 03:32:39,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:39,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:39,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:39,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:39,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:32:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:39,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:32:39,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:32:39,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:32:39,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140722971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:39,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:39,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-28 03:32:39,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571356205] [2024-11-28 03:32:39,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:39,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:39,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:39,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:39,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:32:39,341 INFO L87 Difference]: Start difference. First operand 11857 states and 14502 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 03:32:40,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:40,173 INFO L93 Difference]: Finished difference Result 16936 states and 20632 transitions. [2024-11-28 03:32:40,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:32:40,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-28 03:32:40,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:40,216 INFO L225 Difference]: With dead ends: 16936 [2024-11-28 03:32:40,216 INFO L226 Difference]: Without dead ends: 5489 [2024-11-28 03:32:40,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:32:40,241 INFO L435 NwaCegarLoop]: 716 mSDtfsCounter, 0 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:40,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3571 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:40,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2024-11-28 03:32:40,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5301. [2024-11-28 03:32:41,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 4193 states have (on average 1.2172668733603624) internal successors, (5104), 4237 states have internal predecessors, (5104), 541 states have call successors, (541), 433 states have call predecessors, (541), 565 states have return successors, (837), 631 states have call predecessors, (837), 540 states have call successors, (837) [2024-11-28 03:32:41,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 6482 transitions. [2024-11-28 03:32:41,043 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 6482 transitions. Word has length 139 [2024-11-28 03:32:41,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:41,044 INFO L471 AbstractCegarLoop]: Abstraction has 5301 states and 6482 transitions. [2024-11-28 03:32:41,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 03:32:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 6482 transitions. [2024-11-28 03:32:41,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:32:41,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:41,058 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:41,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:41,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:32:41,259 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:41,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:41,260 INFO L85 PathProgramCache]: Analyzing trace with hash -665244255, now seen corresponding path program 1 times [2024-11-28 03:32:41,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:41,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494531874] [2024-11-28 03:32:41,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:41,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:41,362 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 03:32:41,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:41,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494531874] [2024-11-28 03:32:41,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494531874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:41,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:41,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:41,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369418602] [2024-11-28 03:32:41,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:41,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:41,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:41,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:41,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:41,365 INFO L87 Difference]: Start difference. First operand 5301 states and 6482 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:32:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:42,095 INFO L93 Difference]: Finished difference Result 5614 states and 6848 transitions. [2024-11-28 03:32:42,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:42,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2024-11-28 03:32:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:42,127 INFO L225 Difference]: With dead ends: 5614 [2024-11-28 03:32:42,127 INFO L226 Difference]: Without dead ends: 4893 [2024-11-28 03:32:42,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:42,131 INFO L435 NwaCegarLoop]: 717 mSDtfsCounter, 120 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:42,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1310 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2024-11-28 03:32:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4893. [2024-11-28 03:32:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4893 states, 3881 states have (on average 1.2215923730997165) internal successors, (4741), 3922 states have internal predecessors, (4741), 495 states have call successors, (495), 393 states have call predecessors, (495), 515 states have return successors, (774), 578 states have call predecessors, (774), 494 states have call successors, (774) [2024-11-28 03:32:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4893 states to 4893 states and 6010 transitions. [2024-11-28 03:32:42,800 INFO L78 Accepts]: Start accepts. Automaton has 4893 states and 6010 transitions. Word has length 141 [2024-11-28 03:32:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:42,800 INFO L471 AbstractCegarLoop]: Abstraction has 4893 states and 6010 transitions. [2024-11-28 03:32:42,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:32:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4893 states and 6010 transitions. [2024-11-28 03:32:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:32:42,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:42,815 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:42,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:32:42,815 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:42,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -511703329, now seen corresponding path program 1 times [2024-11-28 03:32:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:42,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943371486] [2024-11-28 03:32:42,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-28 03:32:42,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:42,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943371486] [2024-11-28 03:32:42,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943371486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:42,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:42,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:42,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749862224] [2024-11-28 03:32:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:42,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:42,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:42,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:42,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:42,932 INFO L87 Difference]: Start difference. First operand 4893 states and 6010 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 03:32:43,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:43,525 INFO L93 Difference]: Finished difference Result 6706 states and 8150 transitions. [2024-11-28 03:32:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:43,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 151 [2024-11-28 03:32:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:43,551 INFO L225 Difference]: With dead ends: 6706 [2024-11-28 03:32:43,551 INFO L226 Difference]: Without dead ends: 2374 [2024-11-28 03:32:43,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:43,563 INFO L435 NwaCegarLoop]: 715 mSDtfsCounter, 681 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:43,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 816 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:43,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2024-11-28 03:32:43,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 2374. [2024-11-28 03:32:43,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 1918 states have (on average 1.2429614181439) internal successors, (2384), 1937 states have internal predecessors, (2384), 228 states have call successors, (228), 174 states have call predecessors, (228), 226 states have return successors, (326), 263 states have call predecessors, (326), 227 states have call successors, (326) [2024-11-28 03:32:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 2938 transitions. [2024-11-28 03:32:43,999 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 2938 transitions. Word has length 151 [2024-11-28 03:32:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:44,000 INFO L471 AbstractCegarLoop]: Abstraction has 2374 states and 2938 transitions. [2024-11-28 03:32:44,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 03:32:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 2938 transitions. [2024-11-28 03:32:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 03:32:44,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:44,008 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:44,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:32:44,009 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:44,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:44,010 INFO L85 PathProgramCache]: Analyzing trace with hash 224898884, now seen corresponding path program 1 times [2024-11-28 03:32:44,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:44,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794092239] [2024-11-28 03:32:44,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:44,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-28 03:32:44,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:44,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794092239] [2024-11-28 03:32:44,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794092239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:32:44,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078987053] [2024-11-28 03:32:44,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:44,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:32:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:44,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:32:44,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:32:44,200 INFO L87 Difference]: Start difference. First operand 2374 states and 2938 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:32:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:45,806 INFO L93 Difference]: Finished difference Result 4078 states and 4979 transitions. [2024-11-28 03:32:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:32:45,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 150 [2024-11-28 03:32:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:45,832 INFO L225 Difference]: With dead ends: 4078 [2024-11-28 03:32:45,832 INFO L226 Difference]: Without dead ends: 2392 [2024-11-28 03:32:45,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:32:45,838 INFO L435 NwaCegarLoop]: 418 mSDtfsCounter, 357 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:45,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1452 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:32:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-11-28 03:32:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2009. [2024-11-28 03:32:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1637 states have (on average 1.2596212583995112) internal successors, (2062), 1657 states have internal predecessors, (2062), 188 states have call successors, (188), 142 states have call predecessors, (188), 182 states have return successors, (265), 210 states have call predecessors, (265), 187 states have call successors, (265) [2024-11-28 03:32:46,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2515 transitions. [2024-11-28 03:32:46,219 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2515 transitions. Word has length 150 [2024-11-28 03:32:46,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:46,220 INFO L471 AbstractCegarLoop]: Abstraction has 2009 states and 2515 transitions. [2024-11-28 03:32:46,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:32:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2515 transitions. [2024-11-28 03:32:46,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:32:46,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:46,228 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:46,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:32:46,230 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:46,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:46,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1017052032, now seen corresponding path program 1 times [2024-11-28 03:32:46,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:46,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131564885] [2024-11-28 03:32:46,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:46,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-28 03:32:46,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:46,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131564885] [2024-11-28 03:32:46,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131564885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:46,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401494690] [2024-11-28 03:32:46,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:46,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:46,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:46,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:46,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:32:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:46,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:32:47,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-28 03:32:47,289 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:32:47,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401494690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:32:47,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:32:47,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2024-11-28 03:32:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549274987] [2024-11-28 03:32:47,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:47,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:32:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:47,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:32:47,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:32:47,753 INFO L87 Difference]: Start difference. First operand 2009 states and 2515 transitions. Second operand has 13 states, 13 states have (on average 17.692307692307693) internal successors, (230), 13 states have internal predecessors, (230), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-28 03:32:50,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:50,627 INFO L93 Difference]: Finished difference Result 4062 states and 5029 transitions. [2024-11-28 03:32:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:32:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.692307692307693) internal successors, (230), 13 states have internal predecessors, (230), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 153 [2024-11-28 03:32:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:50,650 INFO L225 Difference]: With dead ends: 4062 [2024-11-28 03:32:50,650 INFO L226 Difference]: Without dead ends: 2349 [2024-11-28 03:32:50,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 314 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:32:50,656 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 1658 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:50,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 2040 Invalid, 2303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:32:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2024-11-28 03:32:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2078. [2024-11-28 03:32:50,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 1668 states have (on average 1.235011990407674) internal successors, (2060), 1692 states have internal predecessors, (2060), 208 states have call successors, (208), 164 states have call predecessors, (208), 200 states have return successors, (314), 222 states have call predecessors, (314), 207 states have call successors, (314) [2024-11-28 03:32:50,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2582 transitions. [2024-11-28 03:32:50,917 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2582 transitions. Word has length 153 [2024-11-28 03:32:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:50,918 INFO L471 AbstractCegarLoop]: Abstraction has 2078 states and 2582 transitions. [2024-11-28 03:32:50,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.692307692307693) internal successors, (230), 13 states have internal predecessors, (230), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-28 03:32:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2582 transitions. [2024-11-28 03:32:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 03:32:50,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:50,925 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:50,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:32:51,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:32:51,130 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:51,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:51,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1377587690, now seen corresponding path program 1 times [2024-11-28 03:32:51,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:51,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826683206] [2024-11-28 03:32:51,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 03:32:51,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:51,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826683206] [2024-11-28 03:32:51,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826683206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:51,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936852965] [2024-11-28 03:32:51,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:51,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:51,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:51,314 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:51,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:32:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:51,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:51,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 03:32:51,598 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:32:51,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936852965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:51,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:51,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 03:32:51,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852421038] [2024-11-28 03:32:51,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:51,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:32:51,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:51,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:32:51,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:32:51,601 INFO L87 Difference]: Start difference. First operand 2078 states and 2582 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:32:52,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:52,941 INFO L93 Difference]: Finished difference Result 3678 states and 4460 transitions. [2024-11-28 03:32:52,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:32:52,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 169 [2024-11-28 03:32:52,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:52,962 INFO L225 Difference]: With dead ends: 3678 [2024-11-28 03:32:52,963 INFO L226 Difference]: Without dead ends: 1811 [2024-11-28 03:32:52,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:32:52,968 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 979 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:52,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1049 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:32:52,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-28 03:32:53,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1738. [2024-11-28 03:32:53,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1408 states have (on average 1.2450284090909092) internal successors, (1753), 1422 states have internal predecessors, (1753), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-28 03:32:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2164 transitions. [2024-11-28 03:32:53,213 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2164 transitions. Word has length 169 [2024-11-28 03:32:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:53,213 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2164 transitions. [2024-11-28 03:32:53,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:32:53,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2164 transitions. [2024-11-28 03:32:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:32:53,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:53,218 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:53,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:32:53,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635a3899-603f-40ce-8494-aba3f95535bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:53,420 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:53,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:53,421 INFO L85 PathProgramCache]: Analyzing trace with hash 637180315, now seen corresponding path program 1 times [2024-11-28 03:32:53,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:53,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809415165] [2024-11-28 03:32:53,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:53,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:53,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:53,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809415165] [2024-11-28 03:32:53,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809415165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:53,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:53,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:53,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077408646] [2024-11-28 03:32:53,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:53,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:53,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:53,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:53,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:53,514 INFO L87 Difference]: Start difference. First operand 1738 states and 2164 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:53,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:53,725 INFO L93 Difference]: Finished difference Result 2100 states and 2735 transitions. [2024-11-28 03:32:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:53,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:32:53,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:53,744 INFO L225 Difference]: With dead ends: 2100 [2024-11-28 03:32:53,744 INFO L226 Difference]: Without dead ends: 1738 [2024-11-28 03:32:53,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:53,747 INFO L435 NwaCegarLoop]: 714 mSDtfsCounter, 580 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:53,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 837 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:53,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-28 03:32:53,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-11-28 03:32:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1408 states have (on average 1.2443181818181819) internal successors, (1752), 1422 states have internal predecessors, (1752), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-28 03:32:53,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2163 transitions. [2024-11-28 03:32:53,989 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2163 transitions. Word has length 176 [2024-11-28 03:32:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:53,991 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2163 transitions. [2024-11-28 03:32:53,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2163 transitions. [2024-11-28 03:32:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:32:53,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:53,997 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:53,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:32:53,999 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:53,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:54,000 INFO L85 PathProgramCache]: Analyzing trace with hash -766688871, now seen corresponding path program 1 times [2024-11-28 03:32:54,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:54,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159866854] [2024-11-28 03:32:54,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:54,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:54,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:54,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159866854] [2024-11-28 03:32:54,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159866854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:54,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:54,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:32:54,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173436239] [2024-11-28 03:32:54,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:54,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:32:54,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:54,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:32:54,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:32:54,170 INFO L87 Difference]: Start difference. First operand 1738 states and 2163 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:55,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:55,523 INFO L93 Difference]: Finished difference Result 2496 states and 3377 transitions. [2024-11-28 03:32:55,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:32:55,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:32:55,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:55,542 INFO L225 Difference]: With dead ends: 2496 [2024-11-28 03:32:55,542 INFO L226 Difference]: Without dead ends: 2141 [2024-11-28 03:32:55,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:55,547 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 1308 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:55,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 1783 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:32:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2024-11-28 03:32:55,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 2112. [2024-11-28 03:32:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 1754 states have (on average 1.314709236031927) internal successors, (2306), 1769 states have internal predecessors, (2306), 192 states have call successors, (192), 136 states have call predecessors, (192), 164 states have return successors, (262), 207 states have call predecessors, (262), 191 states have call successors, (262) [2024-11-28 03:32:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2760 transitions. [2024-11-28 03:32:55,833 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2760 transitions. Word has length 176 [2024-11-28 03:32:55,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:55,833 INFO L471 AbstractCegarLoop]: Abstraction has 2112 states and 2760 transitions. [2024-11-28 03:32:55,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2760 transitions. [2024-11-28 03:32:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:32:55,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:55,838 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:55,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:32:55,838 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:55,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1225693469, now seen corresponding path program 1 times [2024-11-28 03:32:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:55,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395649790] [2024-11-28 03:32:55,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:55,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:56,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:56,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:56,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395649790] [2024-11-28 03:32:56,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395649790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:56,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:56,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:32:56,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989822983] [2024-11-28 03:32:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:56,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:32:56,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:56,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:32:56,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:56,044 INFO L87 Difference]: Start difference. First operand 2112 states and 2760 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:57,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:57,953 INFO L93 Difference]: Finished difference Result 3316 states and 4706 transitions. [2024-11-28 03:32:57,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:32:57,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:32:57,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:57,977 INFO L225 Difference]: With dead ends: 3316 [2024-11-28 03:32:57,977 INFO L226 Difference]: Without dead ends: 2587 [2024-11-28 03:32:57,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:32:57,981 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 1315 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:57,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 3335 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:32:57,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2024-11-28 03:32:58,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2458. [2024-11-28 03:32:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2072 states have (on average 1.3532818532818534) internal successors, (2804), 2088 states have internal predecessors, (2804), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (286), 229 states have call predecessors, (286), 212 states have call successors, (286) [2024-11-28 03:32:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3303 transitions. [2024-11-28 03:32:58,456 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3303 transitions. Word has length 176 [2024-11-28 03:32:58,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:58,456 INFO L471 AbstractCegarLoop]: Abstraction has 2458 states and 3303 transitions. [2024-11-28 03:32:58,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:58,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3303 transitions. [2024-11-28 03:32:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:32:58,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:58,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:58,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:32:58,461 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:58,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1622692961, now seen corresponding path program 1 times [2024-11-28 03:32:58,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:58,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396421979] [2024-11-28 03:32:58,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:58,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:58,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:58,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:58,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396421979] [2024-11-28 03:32:58,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396421979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:58,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:58,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:32:58,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880734816] [2024-11-28 03:32:58,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:58,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:32:58,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:58,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:32:58,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:32:58,628 INFO L87 Difference]: Start difference. First operand 2458 states and 3303 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:59,539 INFO L93 Difference]: Finished difference Result 3653 states and 5238 transitions. [2024-11-28 03:32:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:32:59,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:32:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:59,561 INFO L225 Difference]: With dead ends: 3653 [2024-11-28 03:32:59,561 INFO L226 Difference]: Without dead ends: 2578 [2024-11-28 03:32:59,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:59,566 INFO L435 NwaCegarLoop]: 502 mSDtfsCounter, 968 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:59,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1329 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:32:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2024-11-28 03:32:59,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2458. [2024-11-28 03:32:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2072 states have (on average 1.3518339768339769) internal successors, (2801), 2088 states have internal predecessors, (2801), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (286), 229 states have call predecessors, (286), 212 states have call successors, (286) [2024-11-28 03:32:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3300 transitions. [2024-11-28 03:32:59,883 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3300 transitions. Word has length 176 [2024-11-28 03:32:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:59,884 INFO L471 AbstractCegarLoop]: Abstraction has 2458 states and 3300 transitions. [2024-11-28 03:32:59,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:32:59,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3300 transitions. [2024-11-28 03:32:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:32:59,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:59,888 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:59,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:32:59,888 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:59,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:59,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1749106909, now seen corresponding path program 1 times [2024-11-28 03:32:59,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:59,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887450350] [2024-11-28 03:32:59,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:59,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:00,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:00,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887450350] [2024-11-28 03:33:00,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887450350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:00,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:00,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:00,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020394663] [2024-11-28 03:33:00,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:00,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:00,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:00,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:00,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:00,052 INFO L87 Difference]: Start difference. First operand 2458 states and 3300 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:00,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:00,918 INFO L93 Difference]: Finished difference Result 3648 states and 5222 transitions. [2024-11-28 03:33:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:00,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:00,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:00,933 INFO L225 Difference]: With dead ends: 3648 [2024-11-28 03:33:00,933 INFO L226 Difference]: Without dead ends: 2573 [2024-11-28 03:33:00,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:00,937 INFO L435 NwaCegarLoop]: 499 mSDtfsCounter, 965 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:00,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1321 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2024-11-28 03:33:01,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2458. [2024-11-28 03:33:01,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2072 states have (on average 1.3503861003861004) internal successors, (2798), 2088 states have internal predecessors, (2798), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (286), 229 states have call predecessors, (286), 212 states have call successors, (286) [2024-11-28 03:33:01,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3297 transitions. [2024-11-28 03:33:01,273 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3297 transitions. Word has length 176 [2024-11-28 03:33:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:01,274 INFO L471 AbstractCegarLoop]: Abstraction has 2458 states and 3297 transitions. [2024-11-28 03:33:01,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3297 transitions. [2024-11-28 03:33:01,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:01,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:01,278 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:01,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:33:01,278 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:01,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:01,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2134969311, now seen corresponding path program 1 times [2024-11-28 03:33:01,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:01,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563677186] [2024-11-28 03:33:01,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:01,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:01,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:01,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563677186] [2024-11-28 03:33:01,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563677186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:01,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:01,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:01,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967974109] [2024-11-28 03:33:01,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:01,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:01,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:01,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:01,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:01,479 INFO L87 Difference]: Start difference. First operand 2458 states and 3297 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:02,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:02,771 INFO L93 Difference]: Finished difference Result 4405 states and 6418 transitions. [2024-11-28 03:33:02,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:33:02,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:02,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:02,789 INFO L225 Difference]: With dead ends: 4405 [2024-11-28 03:33:02,789 INFO L226 Difference]: Without dead ends: 3330 [2024-11-28 03:33:02,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:02,793 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 1326 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:02,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 2388 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:33:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2024-11-28 03:33:03,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3191. [2024-11-28 03:33:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3191 states, 2747 states have (on average 1.4069894430287586) internal successors, (3865), 2767 states have internal predecessors, (3865), 255 states have call successors, (255), 154 states have call predecessors, (255), 187 states have return successors, (340), 273 states have call predecessors, (340), 254 states have call successors, (340) [2024-11-28 03:33:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3191 states to 3191 states and 4460 transitions. [2024-11-28 03:33:03,142 INFO L78 Accepts]: Start accepts. Automaton has 3191 states and 4460 transitions. Word has length 176 [2024-11-28 03:33:03,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:03,143 INFO L471 AbstractCegarLoop]: Abstraction has 3191 states and 4460 transitions. [2024-11-28 03:33:03,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:03,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3191 states and 4460 transitions. [2024-11-28 03:33:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:03,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:03,146 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:03,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:33:03,146 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:03,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1870321821, now seen corresponding path program 1 times [2024-11-28 03:33:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:03,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63769563] [2024-11-28 03:33:03,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:03,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:03,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63769563] [2024-11-28 03:33:03,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63769563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:03,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:03,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:03,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172597099] [2024-11-28 03:33:03,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:03,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:03,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:03,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:03,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:03,283 INFO L87 Difference]: Start difference. First operand 3191 states and 4460 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:04,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:04,211 INFO L93 Difference]: Finished difference Result 5230 states and 7772 transitions. [2024-11-28 03:33:04,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:04,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:04,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:04,235 INFO L225 Difference]: With dead ends: 5230 [2024-11-28 03:33:04,235 INFO L226 Difference]: Without dead ends: 3422 [2024-11-28 03:33:04,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:04,241 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 961 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:04,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1307 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2024-11-28 03:33:04,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 3191. [2024-11-28 03:33:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3191 states, 2747 states have (on average 1.4051692755733527) internal successors, (3860), 2767 states have internal predecessors, (3860), 255 states have call successors, (255), 154 states have call predecessors, (255), 187 states have return successors, (340), 273 states have call predecessors, (340), 254 states have call successors, (340) [2024-11-28 03:33:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3191 states to 3191 states and 4455 transitions. [2024-11-28 03:33:04,660 INFO L78 Accepts]: Start accepts. Automaton has 3191 states and 4455 transitions. Word has length 176 [2024-11-28 03:33:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:04,660 INFO L471 AbstractCegarLoop]: Abstraction has 3191 states and 4455 transitions. [2024-11-28 03:33:04,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:04,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3191 states and 4455 transitions. [2024-11-28 03:33:04,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:04,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:04,664 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:04,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:33:04,664 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:04,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:04,666 INFO L85 PathProgramCache]: Analyzing trace with hash -493519841, now seen corresponding path program 1 times [2024-11-28 03:33:04,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:04,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859199692] [2024-11-28 03:33:04,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:04,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:04,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:04,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859199692] [2024-11-28 03:33:04,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859199692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:04,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:04,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212061096] [2024-11-28 03:33:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:04,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:04,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:04,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:04,847 INFO L87 Difference]: Start difference. First operand 3191 states and 4455 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:06,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:06,419 INFO L93 Difference]: Finished difference Result 6748 states and 10184 transitions. [2024-11-28 03:33:06,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:33:06,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:06,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:06,445 INFO L225 Difference]: With dead ends: 6748 [2024-11-28 03:33:06,445 INFO L226 Difference]: Without dead ends: 4940 [2024-11-28 03:33:06,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:06,451 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 1281 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:06,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 3250 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:33:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4940 states. [2024-11-28 03:33:06,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4940 to 4771. [2024-11-28 03:33:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4771 states, 4205 states have (on average 1.4739595719381688) internal successors, (6198), 4239 states have internal predecessors, (6198), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-28 03:33:06,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 7009 transitions. [2024-11-28 03:33:06,954 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 7009 transitions. Word has length 176 [2024-11-28 03:33:06,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:06,954 INFO L471 AbstractCegarLoop]: Abstraction has 4771 states and 7009 transitions. [2024-11-28 03:33:06,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:06,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 7009 transitions. [2024-11-28 03:33:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:06,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:06,958 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:06,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:33:06,958 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:06,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:06,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1816698787, now seen corresponding path program 1 times [2024-11-28 03:33:06,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:06,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739517209] [2024-11-28 03:33:06,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:06,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:07,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:07,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739517209] [2024-11-28 03:33:07,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739517209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:07,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:07,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:07,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558301844] [2024-11-28 03:33:07,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:07,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:07,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:07,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:07,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:07,090 INFO L87 Difference]: Start difference. First operand 4771 states and 7009 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:08,117 INFO L93 Difference]: Finished difference Result 8710 states and 13512 transitions. [2024-11-28 03:33:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:08,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:08,139 INFO L225 Difference]: With dead ends: 8710 [2024-11-28 03:33:08,139 INFO L226 Difference]: Without dead ends: 5322 [2024-11-28 03:33:08,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:08,147 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 957 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:08,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 1293 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:08,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2024-11-28 03:33:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 4771. [2024-11-28 03:33:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4771 states, 4205 states have (on average 1.4718192627824018) internal successors, (6189), 4239 states have internal predecessors, (6189), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-28 03:33:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 7000 transitions. [2024-11-28 03:33:08,683 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 7000 transitions. Word has length 176 [2024-11-28 03:33:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:08,683 INFO L471 AbstractCegarLoop]: Abstraction has 4771 states and 7000 transitions. [2024-11-28 03:33:08,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:08,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 7000 transitions. [2024-11-28 03:33:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:08,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:08,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:08,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:33:08,686 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:08,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash 80280671, now seen corresponding path program 1 times [2024-11-28 03:33:08,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:08,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022319279] [2024-11-28 03:33:08,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:08,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:08,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022319279] [2024-11-28 03:33:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022319279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:08,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:08,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:08,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066290342] [2024-11-28 03:33:08,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:08,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:08,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:08,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:08,827 INFO L87 Difference]: Start difference. First operand 4771 states and 7000 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:09,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:09,927 INFO L93 Difference]: Finished difference Result 8652 states and 13378 transitions. [2024-11-28 03:33:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:09,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:09,946 INFO L225 Difference]: With dead ends: 8652 [2024-11-28 03:33:09,946 INFO L226 Difference]: Without dead ends: 5264 [2024-11-28 03:33:09,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:09,952 INFO L435 NwaCegarLoop]: 484 mSDtfsCounter, 953 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:09,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1279 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2024-11-28 03:33:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 4771. [2024-11-28 03:33:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4771 states, 4205 states have (on average 1.469678953626635) internal successors, (6180), 4239 states have internal predecessors, (6180), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-28 03:33:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 6991 transitions. [2024-11-28 03:33:10,431 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 6991 transitions. Word has length 176 [2024-11-28 03:33:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:10,432 INFO L471 AbstractCegarLoop]: Abstraction has 4771 states and 6991 transitions. [2024-11-28 03:33:10,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 6991 transitions. [2024-11-28 03:33:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:10,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:10,436 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:10,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:33:10,436 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:10,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash 506835169, now seen corresponding path program 1 times [2024-11-28 03:33:10,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:10,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496913526] [2024-11-28 03:33:10,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:10,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:10,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:10,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496913526] [2024-11-28 03:33:10,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496913526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:10,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:10,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:10,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79410535] [2024-11-28 03:33:10,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:10,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:10,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:10,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:10,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:10,575 INFO L87 Difference]: Start difference. First operand 4771 states and 6991 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:11,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:11,712 INFO L93 Difference]: Finished difference Result 8623 states and 13302 transitions. [2024-11-28 03:33:11,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:11,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:11,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:11,731 INFO L225 Difference]: With dead ends: 8623 [2024-11-28 03:33:11,731 INFO L226 Difference]: Without dead ends: 5235 [2024-11-28 03:33:11,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:11,740 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 950 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:11,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 1271 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:11,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2024-11-28 03:33:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 4771. [2024-11-28 03:33:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4771 states, 4205 states have (on average 1.467538644470868) internal successors, (6171), 4239 states have internal predecessors, (6171), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-28 03:33:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 6982 transitions. [2024-11-28 03:33:12,148 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 6982 transitions. Word has length 176 [2024-11-28 03:33:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:12,148 INFO L471 AbstractCegarLoop]: Abstraction has 4771 states and 6982 transitions. [2024-11-28 03:33:12,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:12,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 6982 transitions. [2024-11-28 03:33:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:12,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:12,150 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:12,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:33:12,151 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:12,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,151 INFO L85 PathProgramCache]: Analyzing trace with hash -33594337, now seen corresponding path program 1 times [2024-11-28 03:33:12,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71685923] [2024-11-28 03:33:12,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:12,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:12,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71685923] [2024-11-28 03:33:12,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71685923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:12,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:12,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:12,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783818386] [2024-11-28 03:33:12,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:12,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:12,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:12,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:12,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:12,322 INFO L87 Difference]: Start difference. First operand 4771 states and 6982 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:14,142 INFO L93 Difference]: Finished difference Result 11738 states and 18303 transitions. [2024-11-28 03:33:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:33:14,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:14,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:14,175 INFO L225 Difference]: With dead ends: 11738 [2024-11-28 03:33:14,175 INFO L226 Difference]: Without dead ends: 8350 [2024-11-28 03:33:14,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:14,186 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 1249 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:14,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 3167 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:33:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8350 states. [2024-11-28 03:33:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8350 to 8156. [2024-11-28 03:33:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7328 states have (on average 1.5304312227074235) internal successors, (11215), 7408 states have internal predecessors, (11215), 507 states have call successors, (507), 226 states have call predecessors, (507), 319 states have return successors, (832), 537 states have call predecessors, (832), 506 states have call successors, (832) [2024-11-28 03:33:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 12554 transitions. [2024-11-28 03:33:14,845 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 12554 transitions. Word has length 176 [2024-11-28 03:33:14,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:14,845 INFO L471 AbstractCegarLoop]: Abstraction has 8156 states and 12554 transitions. [2024-11-28 03:33:14,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 12554 transitions. [2024-11-28 03:33:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:14,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:14,850 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:14,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:33:14,850 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:14,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:14,850 INFO L85 PathProgramCache]: Analyzing trace with hash -189574879, now seen corresponding path program 1 times [2024-11-28 03:33:14,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:14,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027448629] [2024-11-28 03:33:14,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:14,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:14,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:14,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027448629] [2024-11-28 03:33:14,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027448629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:14,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:14,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:14,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015610102] [2024-11-28 03:33:14,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:14,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:14,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:14,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:14,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:14,990 INFO L87 Difference]: Start difference. First operand 8156 states and 12554 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:16,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:16,408 INFO L93 Difference]: Finished difference Result 16091 states and 25870 transitions. [2024-11-28 03:33:16,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:16,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:16,446 INFO L225 Difference]: With dead ends: 16091 [2024-11-28 03:33:16,446 INFO L226 Difference]: Without dead ends: 9318 [2024-11-28 03:33:16,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:16,463 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 969 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:16,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1201 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:33:16,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9318 states. [2024-11-28 03:33:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9318 to 8156. [2024-11-28 03:33:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7328 states have (on average 1.5281113537117903) internal successors, (11198), 7408 states have internal predecessors, (11198), 507 states have call successors, (507), 226 states have call predecessors, (507), 319 states have return successors, (832), 537 states have call predecessors, (832), 506 states have call successors, (832) [2024-11-28 03:33:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 12537 transitions. [2024-11-28 03:33:17,354 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 12537 transitions. Word has length 176 [2024-11-28 03:33:17,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:17,355 INFO L471 AbstractCegarLoop]: Abstraction has 8156 states and 12537 transitions. [2024-11-28 03:33:17,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:17,355 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 12537 transitions. [2024-11-28 03:33:17,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:17,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:17,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:17,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:33:17,359 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:17,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:17,359 INFO L85 PathProgramCache]: Analyzing trace with hash 221035487, now seen corresponding path program 1 times [2024-11-28 03:33:17,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:17,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502812581] [2024-11-28 03:33:17,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:17,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:17,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502812581] [2024-11-28 03:33:17,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502812581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:17,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:17,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:17,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113071273] [2024-11-28 03:33:17,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:17,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:17,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:17,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:17,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:17,550 INFO L87 Difference]: Start difference. First operand 8156 states and 12537 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:19,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:19,969 INFO L93 Difference]: Finished difference Result 23919 states and 38659 transitions. [2024-11-28 03:33:19,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:33:19,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:19,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:20,039 INFO L225 Difference]: With dead ends: 23919 [2024-11-28 03:33:20,039 INFO L226 Difference]: Without dead ends: 17146 [2024-11-28 03:33:20,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:20,062 INFO L435 NwaCegarLoop]: 773 mSDtfsCounter, 1579 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:20,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 3119 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:33:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17146 states. [2024-11-28 03:33:21,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17146 to 15462. [2024-11-28 03:33:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15462 states, 14072 states have (on average 1.5812961910176238) internal successors, (22252), 14298 states have internal predecessors, (22252), 827 states have call successors, (827), 322 states have call predecessors, (827), 561 states have return successors, (1920), 873 states have call predecessors, (1920), 826 states have call successors, (1920) [2024-11-28 03:33:21,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15462 states to 15462 states and 24999 transitions. [2024-11-28 03:33:21,342 INFO L78 Accepts]: Start accepts. Automaton has 15462 states and 24999 transitions. Word has length 176 [2024-11-28 03:33:21,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:21,342 INFO L471 AbstractCegarLoop]: Abstraction has 15462 states and 24999 transitions. [2024-11-28 03:33:21,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 15462 states and 24999 transitions. [2024-11-28 03:33:21,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:21,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:21,347 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:21,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:33:21,347 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:21,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1566834335, now seen corresponding path program 1 times [2024-11-28 03:33:21,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:21,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608625967] [2024-11-28 03:33:21,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:21,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:21,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:21,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608625967] [2024-11-28 03:33:21,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608625967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:21,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:21,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:21,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583216007] [2024-11-28 03:33:21,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:21,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:21,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:21,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:21,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:21,495 INFO L87 Difference]: Start difference. First operand 15462 states and 24999 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:24,408 INFO L93 Difference]: Finished difference Result 48977 states and 82863 transitions. [2024-11-28 03:33:24,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:33:24,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:24,508 INFO L225 Difference]: With dead ends: 48977 [2024-11-28 03:33:24,508 INFO L226 Difference]: Without dead ends: 34898 [2024-11-28 03:33:24,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:24,544 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 1334 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:24,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 3111 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:33:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34898 states. [2024-11-28 03:33:26,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34898 to 31953. [2024-11-28 03:33:26,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31953 states, 29293 states have (on average 1.627146417232786) internal successors, (47664), 29973 states have internal predecessors, (47664), 1451 states have call successors, (1451), 514 states have call predecessors, (1451), 1207 states have return successors, (5616), 1529 states have call predecessors, (5616), 1450 states have call successors, (5616) [2024-11-28 03:33:26,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31953 states to 31953 states and 54731 transitions. [2024-11-28 03:33:26,558 INFO L78 Accepts]: Start accepts. Automaton has 31953 states and 54731 transitions. Word has length 176 [2024-11-28 03:33:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:26,558 INFO L471 AbstractCegarLoop]: Abstraction has 31953 states and 54731 transitions. [2024-11-28 03:33:26,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:26,559 INFO L276 IsEmpty]: Start isEmpty. Operand 31953 states and 54731 transitions. [2024-11-28 03:33:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:26,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:26,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:26,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:33:26,566 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:26,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash 592249759, now seen corresponding path program 1 times [2024-11-28 03:33:26,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:26,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370857122] [2024-11-28 03:33:26,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:26,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:26,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:26,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370857122] [2024-11-28 03:33:26,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370857122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:26,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:26,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432780567] [2024-11-28 03:33:26,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:26,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:26,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:26,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:26,719 INFO L87 Difference]: Start difference. First operand 31953 states and 54731 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:31,803 INFO L93 Difference]: Finished difference Result 105822 states and 190609 transitions. [2024-11-28 03:33:31,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:33:31,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-11-28 03:33:31,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:32,034 INFO L225 Difference]: With dead ends: 105822 [2024-11-28 03:33:32,034 INFO L226 Difference]: Without dead ends: 75252 [2024-11-28 03:33:32,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:32,102 INFO L435 NwaCegarLoop]: 768 mSDtfsCounter, 1510 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:32,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 3099 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:33:32,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75252 states. [2024-11-28 03:33:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75252 to 69942. [2024-11-28 03:33:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69942 states, 64288 states have (on average 1.6665629666500748) internal successors, (107140), 66362 states have internal predecessors, (107140), 2667 states have call successors, (2667), 898 states have call predecessors, (2667), 2985 states have return successors, (19120), 2809 states have call predecessors, (19120), 2666 states have call successors, (19120) [2024-11-28 03:33:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69942 states to 69942 states and 128927 transitions. [2024-11-28 03:33:37,250 INFO L78 Accepts]: Start accepts. Automaton has 69942 states and 128927 transitions. Word has length 176 [2024-11-28 03:33:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:37,250 INFO L471 AbstractCegarLoop]: Abstraction has 69942 states and 128927 transitions. [2024-11-28 03:33:37,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 69942 states and 128927 transitions. [2024-11-28 03:33:37,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:33:37,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:37,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:37,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:33:37,264 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:37,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:37,265 INFO L85 PathProgramCache]: Analyzing trace with hash 661897633, now seen corresponding path program 1 times [2024-11-28 03:33:37,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:37,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127426526] [2024-11-28 03:33:37,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:37,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:37,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:37,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127426526] [2024-11-28 03:33:37,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127426526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:37,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:37,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:37,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588959500] [2024-11-28 03:33:37,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:37,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:37,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:37,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:37,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:37,411 INFO L87 Difference]: Start difference. First operand 69942 states and 128927 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)