./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d7b83251f9a608d2befdac3ab06beaba9889f30d8ab1cb865fc88ebdabcb52dd --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:08:31,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:08:31,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 00:08:31,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:08:31,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:08:31,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:08:31,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:08:31,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:08:31,586 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:08:31,587 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:08:31,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:08:31,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:08:31,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:08:31,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:08:31,591 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:08:31,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:08:31,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:08:31,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 00:08:31,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:08:31,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 00:08:31,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:08:31,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:08:31,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:08:31,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:08:31,598 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:08:31,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 00:08:31,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:08:31,599 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:08:31,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:08:31,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:08:31,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:08:31,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:08:31,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:08:31,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:08:31,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:08:31,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:08:31,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:08:31,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:08:31,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:08:31,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:08:31,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:08:31,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:08:31,610 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b83251f9a608d2befdac3ab06beaba9889f30d8ab1cb865fc88ebdabcb52dd [2024-11-20 00:08:31,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:08:31,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:08:31,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:08:31,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:08:31,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:08:31,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2024-11-20 00:08:33,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:08:33,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:08:33,635 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2024-11-20 00:08:33,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e003b0e99/d21225cb6cfd4b6d8adea0108476312e/FLAG555049cc6 [2024-11-20 00:08:33,969 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e003b0e99/d21225cb6cfd4b6d8adea0108476312e [2024-11-20 00:08:33,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:08:33,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:08:33,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:08:33,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:08:33,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:08:33,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:33" (1/1) ... [2024-11-20 00:08:33,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0e9e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:33, skipping insertion in model container [2024-11-20 00:08:33,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:33" (1/1) ... [2024-11-20 00:08:34,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:08:34,252 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[914,927] [2024-11-20 00:08:34,310 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[7115,7128] [2024-11-20 00:08:34,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:08:34,414 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:08:34,425 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[914,927] [2024-11-20 00:08:34,463 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[7115,7128] [2024-11-20 00:08:34,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:08:34,548 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:08:34,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34 WrapperNode [2024-11-20 00:08:34,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:08:34,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:08:34,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:08:34,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:08:34,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,613 INFO L138 Inliner]: procedures = 67, calls = 79, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 774 [2024-11-20 00:08:34,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:08:34,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:08:34,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:08:34,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:08:34,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,651 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]. [2024-11-20 00:08:34,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:08:34,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:08:34,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:08:34,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:08:34,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (1/1) ... [2024-11-20 00:08:34,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:08:34,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:08:34,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 00:08:34,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 00:08:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:08:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-20 00:08:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-20 00:08:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-20 00:08:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-20 00:08:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-20 00:08:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-20 00:08:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-20 00:08:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-20 00:08:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-20 00:08:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-20 00:08:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-20 00:08:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-20 00:08:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-20 00:08:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-20 00:08:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-20 00:08:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-20 00:08:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-20 00:08:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-20 00:08:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-20 00:08:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-20 00:08:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-20 00:08:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-20 00:08:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:08:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-20 00:08:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-20 00:08:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-20 00:08:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-20 00:08:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:08:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:08:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-20 00:08:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-20 00:08:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-20 00:08:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-20 00:08:34,954 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:08:34,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:08:35,868 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-11-20 00:08:35,868 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:08:35,898 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:08:35,901 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-20 00:08:35,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:35 BoogieIcfgContainer [2024-11-20 00:08:35,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:08:35,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:08:35,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:08:35,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:08:35,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:08:33" (1/3) ... [2024-11-20 00:08:35,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150d1842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:35, skipping insertion in model container [2024-11-20 00:08:35,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:34" (2/3) ... [2024-11-20 00:08:35,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150d1842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:35, skipping insertion in model container [2024-11-20 00:08:35,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:35" (3/3) ... [2024-11-20 00:08:35,912 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2024-11-20 00:08:35,928 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:08:35,929 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 00:08:36,018 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:08:36,026 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;@4e9035b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:08:36,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 00:08:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 374 states, 319 states have (on average 1.6050156739811912) internal successors, (512), 327 states have internal predecessors, (512), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-20 00:08:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:36,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:36,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:36,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:36,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:36,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1154220689, now seen corresponding path program 1 times [2024-11-20 00:08:36,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:36,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115396558] [2024-11-20 00:08:36,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:36,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:36,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:36,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115396558] [2024-11-20 00:08:36,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115396558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:36,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:36,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:08:36,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360117588] [2024-11-20 00:08:36,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:36,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:08:36,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:36,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:08:36,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:08:36,503 INFO L87 Difference]: Start difference. First operand has 374 states, 319 states have (on average 1.6050156739811912) internal successors, (512), 327 states have internal predecessors, (512), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:37,447 INFO L93 Difference]: Finished difference Result 743 states and 1163 transitions. [2024-11-20 00:08:37,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 00:08:37,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:08:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:37,464 INFO L225 Difference]: With dead ends: 743 [2024-11-20 00:08:37,464 INFO L226 Difference]: Without dead ends: 381 [2024-11-20 00:08:37,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:08:37,480 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 765 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:37,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1055 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:08:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-20 00:08:37,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 363. [2024-11-20 00:08:37,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 311 states have (on average 1.5144694533762058) internal successors, (471), 316 states have internal predecessors, (471), 37 states have call successors, (37), 15 states have call predecessors, (37), 13 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 00:08:37,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 541 transitions. [2024-11-20 00:08:37,556 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 541 transitions. Word has length 65 [2024-11-20 00:08:37,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:37,556 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 541 transitions. [2024-11-20 00:08:37,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 541 transitions. [2024-11-20 00:08:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:37,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:37,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:37,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:08:37,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:37,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:37,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1194895439, now seen corresponding path program 1 times [2024-11-20 00:08:37,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:37,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703017069] [2024-11-20 00:08:37,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:37,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:37,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:37,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703017069] [2024-11-20 00:08:37,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703017069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:37,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:37,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:08:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413333174] [2024-11-20 00:08:37,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:37,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:08:37,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:37,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:08:37,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:08:37,859 INFO L87 Difference]: Start difference. First operand 363 states and 541 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:38,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:38,942 INFO L93 Difference]: Finished difference Result 586 states and 855 transitions. [2024-11-20 00:08:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:08:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:08:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:38,952 INFO L225 Difference]: With dead ends: 586 [2024-11-20 00:08:38,952 INFO L226 Difference]: Without dead ends: 498 [2024-11-20 00:08:38,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:08:38,957 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 908 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:38,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1342 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:08:38,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-20 00:08:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 459. [2024-11-20 00:08:39,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 387 states have (on average 1.4857881136950903) internal successors, (575), 394 states have internal predecessors, (575), 48 states have call successors, (48), 22 states have call predecessors, (48), 22 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2024-11-20 00:08:39,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 672 transitions. [2024-11-20 00:08:39,023 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 672 transitions. Word has length 65 [2024-11-20 00:08:39,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:39,023 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 672 transitions. [2024-11-20 00:08:39,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:39,024 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 672 transitions. [2024-11-20 00:08:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:39,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:39,027 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:39,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:08:39,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:39,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash 483993201, now seen corresponding path program 1 times [2024-11-20 00:08:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:39,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304775726] [2024-11-20 00:08:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:39,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:39,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:39,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304775726] [2024-11-20 00:08:39,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304775726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:39,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:39,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:08:39,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788458735] [2024-11-20 00:08:39,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:39,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:08:39,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:08:39,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:08:39,246 INFO L87 Difference]: Start difference. First operand 459 states and 672 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:40,430 INFO L93 Difference]: Finished difference Result 806 states and 1148 transitions. [2024-11-20 00:08:40,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 00:08:40,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:08:40,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:40,438 INFO L225 Difference]: With dead ends: 806 [2024-11-20 00:08:40,438 INFO L226 Difference]: Without dead ends: 629 [2024-11-20 00:08:40,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-20 00:08:40,443 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 1065 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:40,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1872 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:08:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-20 00:08:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 555. [2024-11-20 00:08:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 463 states have (on average 1.4643628509719222) internal successors, (678), 472 states have internal predecessors, (678), 59 states have call successors, (59), 29 states have call predecessors, (59), 31 states have return successors, (68), 57 states have call predecessors, (68), 55 states have call successors, (68) [2024-11-20 00:08:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2024-11-20 00:08:40,514 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 65 [2024-11-20 00:08:40,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:40,515 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2024-11-20 00:08:40,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2024-11-20 00:08:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:40,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:40,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:40,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:08:40,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:40,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:40,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1544592909, now seen corresponding path program 1 times [2024-11-20 00:08:40,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:40,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863279949] [2024-11-20 00:08:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:40,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:40,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863279949] [2024-11-20 00:08:40,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863279949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:40,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:40,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:08:40,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422450409] [2024-11-20 00:08:40,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:40,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:08:40,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:40,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:08:40,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:08:40,695 INFO L87 Difference]: Start difference. First operand 555 states and 805 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:41,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:41,811 INFO L93 Difference]: Finished difference Result 876 states and 1250 transitions. [2024-11-20 00:08:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:08:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-20 00:08:41,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:41,821 INFO L225 Difference]: With dead ends: 876 [2024-11-20 00:08:41,821 INFO L226 Difference]: Without dead ends: 609 [2024-11-20 00:08:41,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:08:41,827 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 446 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:41,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 2195 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:08:41,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-20 00:08:41,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 570. [2024-11-20 00:08:41,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 475 states have (on average 1.4526315789473685) internal successors, (690), 484 states have internal predecessors, (690), 59 states have call successors, (59), 29 states have call predecessors, (59), 34 states have return successors, (71), 60 states have call predecessors, (71), 55 states have call successors, (71) [2024-11-20 00:08:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 820 transitions. [2024-11-20 00:08:41,891 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 820 transitions. Word has length 65 [2024-11-20 00:08:41,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:41,892 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 820 transitions. [2024-11-20 00:08:41,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:41,892 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 820 transitions. [2024-11-20 00:08:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:41,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:41,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:41,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:08:41,895 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:41,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:41,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1364170993, now seen corresponding path program 1 times [2024-11-20 00:08:41,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:41,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921908171] [2024-11-20 00:08:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:41,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:41,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:41,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:41,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:42,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:42,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:42,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:42,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:42,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:42,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921908171] [2024-11-20 00:08:42,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921908171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:42,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:42,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:08:42,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196188670] [2024-11-20 00:08:42,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:42,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:08:42,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:42,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:08:42,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:08:42,103 INFO L87 Difference]: Start difference. First operand 570 states and 820 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:43,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:43,078 INFO L93 Difference]: Finished difference Result 886 states and 1249 transitions. [2024-11-20 00:08:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:08:43,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-20 00:08:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:43,083 INFO L225 Difference]: With dead ends: 886 [2024-11-20 00:08:43,083 INFO L226 Difference]: Without dead ends: 604 [2024-11-20 00:08:43,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:08:43,090 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 669 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:43,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1948 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:08:43,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-20 00:08:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 575. [2024-11-20 00:08:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 479 states have (on average 1.4446764091858038) internal successors, (692), 488 states have internal predecessors, (692), 59 states have call successors, (59), 29 states have call predecessors, (59), 35 states have return successors, (72), 61 states have call predecessors, (72), 55 states have call successors, (72) [2024-11-20 00:08:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 823 transitions. [2024-11-20 00:08:43,160 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 823 transitions. Word has length 65 [2024-11-20 00:08:43,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:43,160 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 823 transitions. [2024-11-20 00:08:43,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 823 transitions. [2024-11-20 00:08:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:43,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:43,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:43,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:08:43,165 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:43,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:43,166 INFO L85 PathProgramCache]: Analyzing trace with hash 334811695, now seen corresponding path program 1 times [2024-11-20 00:08:43,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:43,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367310377] [2024-11-20 00:08:43,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:43,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:43,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:43,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367310377] [2024-11-20 00:08:43,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367310377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:43,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:43,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:08:43,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405917713] [2024-11-20 00:08:43,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:43,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:08:43,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:43,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:08:43,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:08:43,369 INFO L87 Difference]: Start difference. First operand 575 states and 823 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:08:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:45,296 INFO L93 Difference]: Finished difference Result 2286 states and 3152 transitions. [2024-11-20 00:08:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-20 00:08:45,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-20 00:08:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:45,308 INFO L225 Difference]: With dead ends: 2286 [2024-11-20 00:08:45,308 INFO L226 Difference]: Without dead ends: 1999 [2024-11-20 00:08:45,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 00:08:45,312 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 2117 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:45,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 2059 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:08:45,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2024-11-20 00:08:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1745. [2024-11-20 00:08:45,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1403 states have (on average 1.3521026372059872) internal successors, (1897), 1432 states have internal predecessors, (1897), 176 states have call successors, (176), 131 states have call predecessors, (176), 164 states have return successors, (267), 185 states have call predecessors, (267), 172 states have call successors, (267) [2024-11-20 00:08:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2340 transitions. [2024-11-20 00:08:45,465 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2340 transitions. Word has length 65 [2024-11-20 00:08:45,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:45,466 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2340 transitions. [2024-11-20 00:08:45,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:08:45,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2340 transitions. [2024-11-20 00:08:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:45,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:45,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:45,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:08:45,469 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:45,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:45,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1314224519, now seen corresponding path program 1 times [2024-11-20 00:08:45,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:45,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573007788] [2024-11-20 00:08:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:45,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:45,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:45,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573007788] [2024-11-20 00:08:45,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573007788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:45,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:45,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:08:45,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586888610] [2024-11-20 00:08:45,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:45,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:08:45,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:08:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:08:45,646 INFO L87 Difference]: Start difference. First operand 1745 states and 2340 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:46,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:46,828 INFO L93 Difference]: Finished difference Result 3202 states and 4217 transitions. [2024-11-20 00:08:46,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 00:08:46,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:08:46,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:46,842 INFO L225 Difference]: With dead ends: 3202 [2024-11-20 00:08:46,842 INFO L226 Difference]: Without dead ends: 1965 [2024-11-20 00:08:46,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-20 00:08:46,849 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1065 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:46,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1595 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:08:46,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-20 00:08:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1723. [2024-11-20 00:08:46,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1389 states have (on average 1.349892008639309) internal successors, (1875), 1412 states have internal predecessors, (1875), 176 states have call successors, (176), 131 states have call predecessors, (176), 156 states have return successors, (251), 183 states have call predecessors, (251), 172 states have call successors, (251) [2024-11-20 00:08:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2302 transitions. [2024-11-20 00:08:46,999 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2302 transitions. Word has length 65 [2024-11-20 00:08:46,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:46,999 INFO L471 AbstractCegarLoop]: Abstraction has 1723 states and 2302 transitions. [2024-11-20 00:08:47,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:47,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2302 transitions. [2024-11-20 00:08:47,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:08:47,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:47,002 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:47,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 00:08:47,002 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:47,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:47,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1180211013, now seen corresponding path program 1 times [2024-11-20 00:08:47,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:47,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098692473] [2024-11-20 00:08:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:47,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:47,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:47,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098692473] [2024-11-20 00:08:47,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098692473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:47,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:47,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:08:47,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703989527] [2024-11-20 00:08:47,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:47,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:08:47,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:08:47,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:08:47,112 INFO L87 Difference]: Start difference. First operand 1723 states and 2302 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:48,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:48,041 INFO L93 Difference]: Finished difference Result 4591 states and 6033 transitions. [2024-11-20 00:08:48,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:08:48,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:08:48,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:48,059 INFO L225 Difference]: With dead ends: 4591 [2024-11-20 00:08:48,060 INFO L226 Difference]: Without dead ends: 3159 [2024-11-20 00:08:48,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:08:48,066 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1029 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:48,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1321 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:08:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2024-11-20 00:08:48,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2869. [2024-11-20 00:08:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2287 states have (on average 1.3069523393091387) internal successors, (2989), 2325 states have internal predecessors, (2989), 295 states have call successors, (295), 233 states have call predecessors, (295), 285 states have return successors, (477), 314 states have call predecessors, (477), 291 states have call successors, (477) [2024-11-20 00:08:48,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 3761 transitions. [2024-11-20 00:08:48,303 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 3761 transitions. Word has length 65 [2024-11-20 00:08:48,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:48,304 INFO L471 AbstractCegarLoop]: Abstraction has 2869 states and 3761 transitions. [2024-11-20 00:08:48,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:08:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 3761 transitions. [2024-11-20 00:08:48,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 00:08:48,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:48,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:48,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 00:08:48,306 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:48,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:48,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1385300724, now seen corresponding path program 1 times [2024-11-20 00:08:48,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:48,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113501263] [2024-11-20 00:08:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:48,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:48,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:48,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:48,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113501263] [2024-11-20 00:08:48,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113501263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:48,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:48,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:08:48,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742714625] [2024-11-20 00:08:48,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:48,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:08:48,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:48,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:08:48,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:08:48,400 INFO L87 Difference]: Start difference. First operand 2869 states and 3761 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:49,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:49,337 INFO L93 Difference]: Finished difference Result 7723 states and 10087 transitions. [2024-11-20 00:08:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:08:49,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-20 00:08:49,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:49,415 INFO L225 Difference]: With dead ends: 7723 [2024-11-20 00:08:49,416 INFO L226 Difference]: Without dead ends: 5124 [2024-11-20 00:08:49,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:08:49,426 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 875 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:49,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1093 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:08:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states. [2024-11-20 00:08:49,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 4567. [2024-11-20 00:08:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4567 states, 3588 states have (on average 1.2890189520624302) internal successors, (4625), 3635 states have internal predecessors, (4625), 492 states have call successors, (492), 407 states have call predecessors, (492), 485 states have return successors, (803), 528 states have call predecessors, (803), 488 states have call successors, (803) [2024-11-20 00:08:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5920 transitions. [2024-11-20 00:08:49,885 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5920 transitions. Word has length 66 [2024-11-20 00:08:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:49,885 INFO L471 AbstractCegarLoop]: Abstraction has 4567 states and 5920 transitions. [2024-11-20 00:08:49,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5920 transitions. [2024-11-20 00:08:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-20 00:08:49,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:49,890 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:08:49,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 00:08:49,891 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:49,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1900419470, now seen corresponding path program 1 times [2024-11-20 00:08:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:49,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335264379] [2024-11-20 00:08:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 00:08:49,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:49,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335264379] [2024-11-20 00:08:49,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335264379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:49,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:49,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:08:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865222520] [2024-11-20 00:08:49,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:49,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:08:49,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:49,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:08:49,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:08:49,973 INFO L87 Difference]: Start difference. First operand 4567 states and 5920 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:50,687 INFO L93 Difference]: Finished difference Result 6642 states and 8502 transitions. [2024-11-20 00:08:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 00:08:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-20 00:08:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:50,711 INFO L225 Difference]: With dead ends: 6642 [2024-11-20 00:08:50,712 INFO L226 Difference]: Without dead ends: 3967 [2024-11-20 00:08:50,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-20 00:08:50,721 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 1284 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:50,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 847 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:08:50,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2024-11-20 00:08:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3592. [2024-11-20 00:08:51,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 2827 states have (on average 1.2741422002122391) internal successors, (3602), 2866 states have internal predecessors, (3602), 394 states have call successors, (394), 325 states have call predecessors, (394), 369 states have return successors, (570), 404 states have call predecessors, (570), 390 states have call successors, (570) [2024-11-20 00:08:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 4566 transitions. [2024-11-20 00:08:51,023 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 4566 transitions. Word has length 73 [2024-11-20 00:08:51,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:51,024 INFO L471 AbstractCegarLoop]: Abstraction has 3592 states and 4566 transitions. [2024-11-20 00:08:51,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:08:51,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 4566 transitions. [2024-11-20 00:08:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-20 00:08:51,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:51,027 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:08:51,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:08:51,027 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:51,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash 442179811, now seen corresponding path program 1 times [2024-11-20 00:08:51,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:51,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034047573] [2024-11-20 00:08:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:51,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:51,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:51,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034047573] [2024-11-20 00:08:51,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034047573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:51,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:51,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:08:51,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957068115] [2024-11-20 00:08:51,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:51,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:08:51,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:51,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:08:51,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:08:51,137 INFO L87 Difference]: Start difference. First operand 3592 states and 4566 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:08:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:52,299 INFO L93 Difference]: Finished difference Result 5145 states and 6464 transitions. [2024-11-20 00:08:52,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 00:08:52,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 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 73 [2024-11-20 00:08:52,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:52,332 INFO L225 Difference]: With dead ends: 5145 [2024-11-20 00:08:52,332 INFO L226 Difference]: Without dead ends: 5142 [2024-11-20 00:08:52,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:08:52,337 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 1791 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:52,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 855 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:08:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2024-11-20 00:08:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 4648. [2024-11-20 00:08:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4648 states, 3632 states have (on average 1.2599118942731278) internal successors, (4576), 3680 states have internal predecessors, (4576), 520 states have call successors, (520), 439 states have call predecessors, (520), 494 states have return successors, (763), 532 states have call predecessors, (763), 517 states have call successors, (763) [2024-11-20 00:08:52,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 5859 transitions. [2024-11-20 00:08:52,822 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 5859 transitions. Word has length 73 [2024-11-20 00:08:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:52,822 INFO L471 AbstractCegarLoop]: Abstraction has 4648 states and 5859 transitions. [2024-11-20 00:08:52,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:08:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 5859 transitions. [2024-11-20 00:08:52,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 00:08:52,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:52,824 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:08:52,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:08:52,825 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:52,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:52,825 INFO L85 PathProgramCache]: Analyzing trace with hash 821569909, now seen corresponding path program 1 times [2024-11-20 00:08:52,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:52,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846356423] [2024-11-20 00:08:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:52,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:52,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:52,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:52,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846356423] [2024-11-20 00:08:52,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846356423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:08:52,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589653448] [2024-11-20 00:08:52,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:52,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:08:52,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:08:52,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:08:52,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 00:08:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:53,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 00:08:53,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:08:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:53,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:08:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:53,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589653448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:08:53,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:08:53,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-20 00:08:53,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937426934] [2024-11-20 00:08:53,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:08:53,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 00:08:53,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:53,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 00:08:53,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:08:53,452 INFO L87 Difference]: Start difference. First operand 4648 states and 5859 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 00:08:55,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:55,709 INFO L93 Difference]: Finished difference Result 10930 states and 13573 transitions. [2024-11-20 00:08:55,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-20 00:08:55,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 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 74 [2024-11-20 00:08:55,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:55,761 INFO L225 Difference]: With dead ends: 10930 [2024-11-20 00:08:55,761 INFO L226 Difference]: Without dead ends: 10927 [2024-11-20 00:08:55,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-20 00:08:55,767 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 2131 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:55,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 1974 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:08:55,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10927 states. [2024-11-20 00:08:56,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10927 to 8720. [2024-11-20 00:08:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8720 states, 6802 states have (on average 1.2491914142899148) internal successors, (8497), 6892 states have internal predecessors, (8497), 964 states have call successors, (964), 826 states have call predecessors, (964), 952 states have return successors, (1432), 1005 states have call predecessors, (1432), 961 states have call successors, (1432) [2024-11-20 00:08:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8720 states to 8720 states and 10893 transitions. [2024-11-20 00:08:56,586 INFO L78 Accepts]: Start accepts. Automaton has 8720 states and 10893 transitions. Word has length 74 [2024-11-20 00:08:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:56,587 INFO L471 AbstractCegarLoop]: Abstraction has 8720 states and 10893 transitions. [2024-11-20 00:08:56,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 00:08:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8720 states and 10893 transitions. [2024-11-20 00:08:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 00:08:56,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:56,590 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-20 00:08:56,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 00:08:56,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-20 00:08:56,793 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:56,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1372581859, now seen corresponding path program 2 times [2024-11-20 00:08:56,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:56,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674065999] [2024-11-20 00:08:56,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:56,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:56,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:56,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674065999] [2024-11-20 00:08:56,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674065999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:56,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:56,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:08:56,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911756793] [2024-11-20 00:08:56,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:56,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:08:56,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:56,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:08:56,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:08:56,864 INFO L87 Difference]: Start difference. First operand 8720 states and 10893 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:08:57,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:57,820 INFO L93 Difference]: Finished difference Result 13460 states and 16801 transitions. [2024-11-20 00:08:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:08:57,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 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 77 [2024-11-20 00:08:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:57,853 INFO L225 Difference]: With dead ends: 13460 [2024-11-20 00:08:57,853 INFO L226 Difference]: Without dead ends: 5471 [2024-11-20 00:08:57,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:08:57,877 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 943 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:57,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1199 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:08:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-11-20 00:08:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 4598. [2024-11-20 00:08:58,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4598 states, 3622 states have (on average 1.2313638873550525) internal successors, (4460), 3666 states have internal predecessors, (4460), 498 states have call successors, (498), 416 states have call predecessors, (498), 476 states have return successors, (692), 519 states have call predecessors, (692), 495 states have call successors, (692) [2024-11-20 00:08:58,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4598 states to 4598 states and 5650 transitions. [2024-11-20 00:08:58,299 INFO L78 Accepts]: Start accepts. Automaton has 4598 states and 5650 transitions. Word has length 77 [2024-11-20 00:08:58,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:58,300 INFO L471 AbstractCegarLoop]: Abstraction has 4598 states and 5650 transitions. [2024-11-20 00:08:58,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:08:58,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4598 states and 5650 transitions. [2024-11-20 00:08:58,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 00:08:58,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:58,303 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:58,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:08:58,303 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:58,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:58,304 INFO L85 PathProgramCache]: Analyzing trace with hash -365873625, now seen corresponding path program 1 times [2024-11-20 00:08:58,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:58,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562135554] [2024-11-20 00:08:58,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:58,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:08:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:08:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:08:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:08:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:08:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:08:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 00:08:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:58,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 00:08:58,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:58,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562135554] [2024-11-20 00:08:58,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562135554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:58,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:58,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:08:58,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716926986] [2024-11-20 00:08:58,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:58,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:08:58,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:58,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:08:58,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:08:58,409 INFO L87 Difference]: Start difference. First operand 4598 states and 5650 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:09:00,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:00,292 INFO L93 Difference]: Finished difference Result 13292 states and 16249 transitions. [2024-11-20 00:09:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 00:09:00,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-20 00:09:00,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:00,331 INFO L225 Difference]: With dead ends: 13292 [2024-11-20 00:09:00,331 INFO L226 Difference]: Without dead ends: 8978 [2024-11-20 00:09:00,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-20 00:09:00,347 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 1143 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:00,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 1445 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:09:00,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8978 states. [2024-11-20 00:09:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8978 to 8404. [2024-11-20 00:09:01,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8404 states, 6476 states have (on average 1.2053736874613958) internal successors, (7806), 6638 states have internal predecessors, (7806), 946 states have call successors, (946), 794 states have call predecessors, (946), 980 states have return successors, (1517), 978 states have call predecessors, (1517), 943 states have call successors, (1517) [2024-11-20 00:09:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 10269 transitions. [2024-11-20 00:09:01,064 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 10269 transitions. Word has length 84 [2024-11-20 00:09:01,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:01,065 INFO L471 AbstractCegarLoop]: Abstraction has 8404 states and 10269 transitions. [2024-11-20 00:09:01,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:09:01,065 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 10269 transitions. [2024-11-20 00:09:01,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-20 00:09:01,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:01,070 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-20 00:09:01,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:09:01,071 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:01,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash -122478559, now seen corresponding path program 1 times [2024-11-20 00:09:01,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:01,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32179958] [2024-11-20 00:09:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:01,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 00:09:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 00:09:01,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:01,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32179958] [2024-11-20 00:09:01,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32179958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:01,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:01,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:09:01,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656967969] [2024-11-20 00:09:01,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:01,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:09:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:09:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:09:01,196 INFO L87 Difference]: Start difference. First operand 8404 states and 10269 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:09:03,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:03,010 INFO L93 Difference]: Finished difference Result 14837 states and 18055 transitions. [2024-11-20 00:09:03,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 00:09:03,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 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 93 [2024-11-20 00:09:03,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:03,044 INFO L225 Difference]: With dead ends: 14837 [2024-11-20 00:09:03,044 INFO L226 Difference]: Without dead ends: 7559 [2024-11-20 00:09:03,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-20 00:09:03,063 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 1645 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:03,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 1996 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:09:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7559 states. [2024-11-20 00:09:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7559 to 7003. [2024-11-20 00:09:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 5416 states have (on average 1.1992245199409157) internal successors, (6495), 5550 states have internal predecessors, (6495), 776 states have call successors, (776), 649 states have call predecessors, (776), 809 states have return successors, (1158), 810 states have call predecessors, (1158), 773 states have call successors, (1158) [2024-11-20 00:09:03,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 8429 transitions. [2024-11-20 00:09:03,755 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 8429 transitions. Word has length 93 [2024-11-20 00:09:03,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:03,756 INFO L471 AbstractCegarLoop]: Abstraction has 7003 states and 8429 transitions. [2024-11-20 00:09:03,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:09:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 8429 transitions. [2024-11-20 00:09:03,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:03,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:03,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:03,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:09:03,764 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:03,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:03,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1286752545, now seen corresponding path program 1 times [2024-11-20 00:09:03,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:03,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221995176] [2024-11-20 00:09:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:03,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:03,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:03,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:03,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:03,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:03,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:03,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:03,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221995176] [2024-11-20 00:09:03,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221995176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:03,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:03,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:09:03,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715475088] [2024-11-20 00:09:03,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:03,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:09:03,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:03,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:09:03,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:09:03,887 INFO L87 Difference]: Start difference. First operand 7003 states and 8429 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:06,328 INFO L93 Difference]: Finished difference Result 7348 states and 8975 transitions. [2024-11-20 00:09:06,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:09:06,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:06,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:06,354 INFO L225 Difference]: With dead ends: 7348 [2024-11-20 00:09:06,354 INFO L226 Difference]: Without dead ends: 7090 [2024-11-20 00:09:06,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:09:06,360 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 780 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:06,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 785 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:09:06,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2024-11-20 00:09:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7003. [2024-11-20 00:09:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 5416 states have (on average 1.1990398818316101) internal successors, (6494), 5550 states have internal predecessors, (6494), 776 states have call successors, (776), 649 states have call predecessors, (776), 809 states have return successors, (1158), 810 states have call predecessors, (1158), 773 states have call successors, (1158) [2024-11-20 00:09:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 8428 transitions. [2024-11-20 00:09:07,378 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 8428 transitions. Word has length 124 [2024-11-20 00:09:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:07,379 INFO L471 AbstractCegarLoop]: Abstraction has 7003 states and 8428 transitions. [2024-11-20 00:09:07,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:07,379 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 8428 transitions. [2024-11-20 00:09:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:07,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:07,387 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:07,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:09:07,388 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:07,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:07,388 INFO L85 PathProgramCache]: Analyzing trace with hash -440392417, now seen corresponding path program 1 times [2024-11-20 00:09:07,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:07,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268977769] [2024-11-20 00:09:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:07,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:07,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:07,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:07,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:07,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:07,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:07,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:07,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268977769] [2024-11-20 00:09:07,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268977769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:07,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:07,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:09:07,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763253080] [2024-11-20 00:09:07,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:07,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:09:07,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:07,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:09:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:09:07,590 INFO L87 Difference]: Start difference. First operand 7003 states and 8428 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:10,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:10,063 INFO L93 Difference]: Finished difference Result 7689 states and 9515 transitions. [2024-11-20 00:09:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:09:10,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:10,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:10,091 INFO L225 Difference]: With dead ends: 7689 [2024-11-20 00:09:10,091 INFO L226 Difference]: Without dead ends: 7437 [2024-11-20 00:09:10,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:09:10,096 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1231 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:10,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1244 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:09:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7437 states. [2024-11-20 00:09:11,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7437 to 7262. [2024-11-20 00:09:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7262 states, 5652 states have (on average 1.2142604387827318) internal successors, (6863), 5787 states have internal predecessors, (6863), 792 states have call successors, (792), 655 states have call predecessors, (792), 816 states have return successors, (1177), 826 states have call predecessors, (1177), 789 states have call successors, (1177) [2024-11-20 00:09:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 8832 transitions. [2024-11-20 00:09:11,458 INFO L78 Accepts]: Start accepts. Automaton has 7262 states and 8832 transitions. Word has length 124 [2024-11-20 00:09:11,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:11,458 INFO L471 AbstractCegarLoop]: Abstraction has 7262 states and 8832 transitions. [2024-11-20 00:09:11,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand 7262 states and 8832 transitions. [2024-11-20 00:09:11,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:11,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:11,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:11,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:09:11,468 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:11,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1458040805, now seen corresponding path program 1 times [2024-11-20 00:09:11,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:11,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593331334] [2024-11-20 00:09:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:11,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:11,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:11,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:11,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:11,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:11,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:11,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593331334] [2024-11-20 00:09:11,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593331334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:11,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:11,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:11,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689488557] [2024-11-20 00:09:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:11,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:11,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:11,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:11,706 INFO L87 Difference]: Start difference. First operand 7262 states and 8832 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:14,629 INFO L93 Difference]: Finished difference Result 8303 states and 10480 transitions. [2024-11-20 00:09:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:09:14,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:14,655 INFO L225 Difference]: With dead ends: 8303 [2024-11-20 00:09:14,655 INFO L226 Difference]: Without dead ends: 7792 [2024-11-20 00:09:14,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:09:14,662 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 1305 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:14,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1486 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 00:09:14,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2024-11-20 00:09:15,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7504. [2024-11-20 00:09:15,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 5871 states have (on average 1.2260262306251064) internal successors, (7198), 6007 states have internal predecessors, (7198), 808 states have call successors, (808), 661 states have call predecessors, (808), 823 states have return successors, (1195), 843 states have call predecessors, (1195), 805 states have call successors, (1195) [2024-11-20 00:09:15,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 9201 transitions. [2024-11-20 00:09:15,799 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 9201 transitions. Word has length 124 [2024-11-20 00:09:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:15,800 INFO L471 AbstractCegarLoop]: Abstraction has 7504 states and 9201 transitions. [2024-11-20 00:09:15,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 9201 transitions. [2024-11-20 00:09:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:15,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:15,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:15,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:09:15,809 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:15,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:15,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1339599331, now seen corresponding path program 1 times [2024-11-20 00:09:15,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:15,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129623621] [2024-11-20 00:09:15,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:15,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:15,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:15,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:15,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:15,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:15,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:15,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:15,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129623621] [2024-11-20 00:09:15,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129623621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:15,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:15,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75983781] [2024-11-20 00:09:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:15,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:15,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:15,977 INFO L87 Difference]: Start difference. First operand 7504 states and 9201 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:18,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:18,893 INFO L93 Difference]: Finished difference Result 9208 states and 11893 transitions. [2024-11-20 00:09:18,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:09:18,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:18,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:18,925 INFO L225 Difference]: With dead ends: 9208 [2024-11-20 00:09:18,926 INFO L226 Difference]: Without dead ends: 8455 [2024-11-20 00:09:18,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:09:18,934 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1248 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:18,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 2065 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 00:09:18,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8455 states. [2024-11-20 00:09:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8455 to 7989. [2024-11-20 00:09:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7989 states, 6310 states have (on average 1.247068145800317) internal successors, (7869), 6448 states have internal predecessors, (7869), 840 states have call successors, (840), 673 states have call predecessors, (840), 837 states have return successors, (1235), 877 states have call predecessors, (1235), 837 states have call successors, (1235) [2024-11-20 00:09:20,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7989 states to 7989 states and 9944 transitions. [2024-11-20 00:09:20,306 INFO L78 Accepts]: Start accepts. Automaton has 7989 states and 9944 transitions. Word has length 124 [2024-11-20 00:09:20,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:20,306 INFO L471 AbstractCegarLoop]: Abstraction has 7989 states and 9944 transitions. [2024-11-20 00:09:20,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:20,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7989 states and 9944 transitions. [2024-11-20 00:09:20,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:20,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:20,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:20,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:09:20,314 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:20,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash 49694683, now seen corresponding path program 1 times [2024-11-20 00:09:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:20,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747076251] [2024-11-20 00:09:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:20,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:20,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:20,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:20,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:20,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:20,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:20,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:20,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747076251] [2024-11-20 00:09:20,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747076251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:20,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:20,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:20,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327844310] [2024-11-20 00:09:20,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:20,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:20,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:20,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:20,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:20,502 INFO L87 Difference]: Start difference. First operand 7989 states and 9944 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:23,571 INFO L93 Difference]: Finished difference Result 10953 states and 14604 transitions. [2024-11-20 00:09:23,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:09:23,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:23,598 INFO L225 Difference]: With dead ends: 10953 [2024-11-20 00:09:23,598 INFO L226 Difference]: Without dead ends: 9715 [2024-11-20 00:09:23,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:09:23,607 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1246 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:23,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 2065 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 00:09:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9715 states. [2024-11-20 00:09:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9715 to 8960. [2024-11-20 00:09:24,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.2812630407567116) internal successors, (9211), 7331 states have internal predecessors, (9211), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-20 00:09:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11436 transitions. [2024-11-20 00:09:24,973 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11436 transitions. Word has length 124 [2024-11-20 00:09:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:24,973 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11436 transitions. [2024-11-20 00:09:24,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11436 transitions. [2024-11-20 00:09:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:24,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:24,981 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:24,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 00:09:24,981 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:24,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1983699363, now seen corresponding path program 1 times [2024-11-20 00:09:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519838456] [2024-11-20 00:09:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:25,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:25,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:25,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:25,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:25,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:25,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:25,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519838456] [2024-11-20 00:09:25,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519838456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:25,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:25,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:25,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252211091] [2024-11-20 00:09:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:25,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:25,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:25,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:25,156 INFO L87 Difference]: Start difference. First operand 8960 states and 11436 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:27,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:27,140 INFO L93 Difference]: Finished difference Result 11927 states and 16129 transitions. [2024-11-20 00:09:27,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:09:27,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:27,176 INFO L225 Difference]: With dead ends: 11927 [2024-11-20 00:09:27,176 INFO L226 Difference]: Without dead ends: 9718 [2024-11-20 00:09:27,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:09:27,186 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1134 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:27,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 969 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:09:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9718 states. [2024-11-20 00:09:28,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9718 to 8960. [2024-11-20 00:09:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.280011128112394) internal successors, (9202), 7331 states have internal predecessors, (9202), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-20 00:09:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11427 transitions. [2024-11-20 00:09:28,331 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11427 transitions. Word has length 124 [2024-11-20 00:09:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:28,332 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11427 transitions. [2024-11-20 00:09:28,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:28,332 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11427 transitions. [2024-11-20 00:09:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:28,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:28,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:28,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 00:09:28,340 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:28,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:28,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1004125535, now seen corresponding path program 1 times [2024-11-20 00:09:28,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:28,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923280673] [2024-11-20 00:09:28,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:28,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:28,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:28,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:28,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:28,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:28,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:28,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:28,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923280673] [2024-11-20 00:09:28,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923280673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:28,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:28,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:28,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813201119] [2024-11-20 00:09:28,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:28,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:28,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:28,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:28,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:28,507 INFO L87 Difference]: Start difference. First operand 8960 states and 11427 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:30,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:30,536 INFO L93 Difference]: Finished difference Result 11917 states and 16082 transitions. [2024-11-20 00:09:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:09:30,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:30,574 INFO L225 Difference]: With dead ends: 11917 [2024-11-20 00:09:30,574 INFO L226 Difference]: Without dead ends: 9708 [2024-11-20 00:09:30,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:09:30,586 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1132 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:30,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 969 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:09:30,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9708 states. [2024-11-20 00:09:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9708 to 8960. [2024-11-20 00:09:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.2787592154680762) internal successors, (9193), 7331 states have internal predecessors, (9193), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-20 00:09:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11418 transitions. [2024-11-20 00:09:31,820 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11418 transitions. Word has length 124 [2024-11-20 00:09:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:31,820 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11418 transitions. [2024-11-20 00:09:31,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11418 transitions. [2024-11-20 00:09:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:31,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:31,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:31,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 00:09:31,826 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:31,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:31,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1393344995, now seen corresponding path program 1 times [2024-11-20 00:09:31,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:31,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085921125] [2024-11-20 00:09:31,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:31,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:31,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:31,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:31,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:31,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:31,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:31,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:31,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085921125] [2024-11-20 00:09:31,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085921125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:31,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:31,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:31,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063698691] [2024-11-20 00:09:31,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:31,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:31,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:31,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:31,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:31,975 INFO L87 Difference]: Start difference. First operand 8960 states and 11418 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:33,949 INFO L93 Difference]: Finished difference Result 11907 states and 16035 transitions. [2024-11-20 00:09:33,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:09:33,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:33,984 INFO L225 Difference]: With dead ends: 11907 [2024-11-20 00:09:33,984 INFO L226 Difference]: Without dead ends: 9698 [2024-11-20 00:09:33,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:09:33,995 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1130 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:33,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 969 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:09:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9698 states. [2024-11-20 00:09:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9698 to 8960. [2024-11-20 00:09:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.2775073028237585) internal successors, (9184), 7331 states have internal predecessors, (9184), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-20 00:09:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11409 transitions. [2024-11-20 00:09:35,282 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11409 transitions. Word has length 124 [2024-11-20 00:09:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:35,283 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11409 transitions. [2024-11-20 00:09:35,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11409 transitions. [2024-11-20 00:09:35,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:35,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:35,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:35,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 00:09:35,291 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:35,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash -362304097, now seen corresponding path program 1 times [2024-11-20 00:09:35,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:35,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049642626] [2024-11-20 00:09:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:35,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:35,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:35,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:35,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:35,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:35,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:35,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:35,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049642626] [2024-11-20 00:09:35,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049642626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:35,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:35,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:35,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438823225] [2024-11-20 00:09:35,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:35,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:35,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:35,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:35,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:35,461 INFO L87 Difference]: Start difference. First operand 8960 states and 11409 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:39,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:39,263 INFO L93 Difference]: Finished difference Result 15261 states and 21136 transitions. [2024-11-20 00:09:39,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:09:39,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:39,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:39,307 INFO L225 Difference]: With dead ends: 15261 [2024-11-20 00:09:39,307 INFO L226 Difference]: Without dead ends: 13052 [2024-11-20 00:09:39,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:09:39,322 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1294 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 2853 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:39,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 2055 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2853 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 00:09:39,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13052 states. [2024-11-20 00:09:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13052 to 10919. [2024-11-20 00:09:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 8972 states have (on average 1.3243423985733394) internal successors, (11882), 9122 states have internal predecessors, (11882), 1024 states have call successors, (1024), 745 states have call predecessors, (1024), 921 states have return successors, (1503), 1073 states have call predecessors, (1503), 1021 states have call successors, (1503) [2024-11-20 00:09:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 14409 transitions. [2024-11-20 00:09:40,720 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 14409 transitions. Word has length 124 [2024-11-20 00:09:40,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:40,720 INFO L471 AbstractCegarLoop]: Abstraction has 10919 states and 14409 transitions. [2024-11-20 00:09:40,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 14409 transitions. [2024-11-20 00:09:40,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-20 00:09:40,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:40,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:40,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 00:09:40,727 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:40,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:40,727 INFO L85 PathProgramCache]: Analyzing trace with hash 2026259933, now seen corresponding path program 1 times [2024-11-20 00:09:40,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:40,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186143788] [2024-11-20 00:09:40,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:40,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:40,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:40,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:40,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 00:09:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:40,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:09:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:40,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:09:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:40,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:40,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:40,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186143788] [2024-11-20 00:09:40,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186143788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:40,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:40,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:40,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446303470] [2024-11-20 00:09:40,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:40,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:40,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:40,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:40,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:40,916 INFO L87 Difference]: Start difference. First operand 10919 states and 14409 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:09:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:44,395 INFO L93 Difference]: Finished difference Result 22838 states and 32838 transitions. [2024-11-20 00:09:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:09:44,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-20 00:09:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:44,445 INFO L225 Difference]: With dead ends: 22838 [2024-11-20 00:09:44,445 INFO L226 Difference]: Without dead ends: 18670 [2024-11-20 00:09:44,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:09:44,461 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 1537 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:44,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 1464 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 00:09:44,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18670 states. [2024-11-20 00:09:46,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18670 to 14660. [2024-11-20 00:09:46,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14660 states, 12369 states have (on average 1.3727868057239874) internal successors, (16980), 12535 states have internal predecessors, (16980), 1256 states have call successors, (1256), 841 states have call predecessors, (1256), 1033 states have return successors, (1913), 1321 states have call predecessors, (1913), 1253 states have call successors, (1913)