./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-1.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 52de5146a3a24866d31d2076a85235f80d04004402c35cfcf3c3304704a7fec0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:04:51,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:04:51,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:04:51,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:04:51,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:04:51,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:04:51,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:04:51,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:04:51,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:04:51,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:04:51,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:04:51,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:04:51,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:04:51,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:04:51,526 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:04:51,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:04:51,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:04:51,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:04:51,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:04:51,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:04:51,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:04:51,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:04:51,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:04:51,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:04:51,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:04:51,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:04:51,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:04:51,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:04:51,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:04:51,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:04:51,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:04:51,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:04:51,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:04:51,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:04:51,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:04:51,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:04:51,537 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:04:51,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:04:51,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:04:51,538 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:04:51,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:04:51,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:04:51,539 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52de5146a3a24866d31d2076a85235f80d04004402c35cfcf3c3304704a7fec0 [2024-11-22 04:04:51,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:04:51,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:04:51,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:04:51,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:04:51,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:04:51,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-1.c [2024-11-22 04:04:53,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:04:53,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:04:53,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-1.c [2024-11-22 04:04:53,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ac204ce/f2741b1174624ce6a6a185f87dc5954f/FLAG13f2b1b16 [2024-11-22 04:04:53,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ac204ce/f2741b1174624ce6a6a185f87dc5954f [2024-11-22 04:04:53,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:04:53,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:04:53,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:04:53,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:04:53,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:04:53,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:53" (1/1) ... [2024-11-22 04:04:53,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b14383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:53, skipping insertion in model container [2024-11-22 04:04:53,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:53" (1/1) ... [2024-11-22 04:04:53,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:04:53,949 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.05.cil-1.c[914,927] [2024-11-22 04:04:54,021 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.05.cil-1.c[7115,7128] [2024-11-22 04:04:54,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:04:54,126 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:04:54,143 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.05.cil-1.c[914,927] [2024-11-22 04:04:54,181 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.05.cil-1.c[7115,7128] [2024-11-22 04:04:54,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:04:54,342 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:04:54,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54 WrapperNode [2024-11-22 04:04:54,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:04:54,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:04:54,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:04:54,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:04:54,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,425 INFO L138 Inliner]: procedures = 63, calls = 72, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 648 [2024-11-22 04:04:54,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:04:54,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:04:54,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:04:54,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:04:54,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,452 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,481 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]. [2024-11-22 04:04:54,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:04:54,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:04:54,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:04:54,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:04:54,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (1/1) ... [2024-11-22 04:04:54,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:04:54,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:04:54,563 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) [2024-11-22 04:04:54,566 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 [2024-11-22 04:04:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:04:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:04:54,611 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:04:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-22 04:04:54,612 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-22 04:04:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:04:54,612 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:04:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:04:54,612 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:04:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-22 04:04:54,613 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-22 04:04:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:04:54,613 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:04:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:04:54,613 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:04:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-22 04:04:54,614 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-22 04:04:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-22 04:04:54,614 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-22 04:04:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-22 04:04:54,614 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-22 04:04:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:04:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:04:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:04:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:04:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:04:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-22 04:04:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-22 04:04:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:04:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:04:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:04:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:04:54,749 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:04:54,751 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:04:55,505 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-11-22 04:04:55,505 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:04:55,535 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:04:55,535 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-22 04:04:55,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:55 BoogieIcfgContainer [2024-11-22 04:04:55,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:04:55,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:04:55,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:04:55,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:04:55,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:04:53" (1/3) ... [2024-11-22 04:04:55,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb4f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:55, skipping insertion in model container [2024-11-22 04:04:55,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:54" (2/3) ... [2024-11-22 04:04:55,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb4f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:55, skipping insertion in model container [2024-11-22 04:04:55,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:55" (3/3) ... [2024-11-22 04:04:55,542 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.05.cil-1.c [2024-11-22 04:04:55,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:04:55,556 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:04:55,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:04:55,626 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;@7d65ad1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:04:55,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:04:55,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 314 states, 264 states have (on average 1.5833333333333333) internal successors, (418), 270 states have internal predecessors, (418), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 04:04:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:55,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:55,644 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] [2024-11-22 04:04:55,645 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:55,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:55,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1889753707, now seen corresponding path program 1 times [2024-11-22 04:04:55,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:55,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500321789] [2024-11-22 04:04:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:55,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:56,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:56,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500321789] [2024-11-22 04:04:56,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500321789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:56,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:56,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:56,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353026405] [2024-11-22 04:04:56,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:56,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:56,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:56,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:56,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:56,078 INFO L87 Difference]: Start difference. First operand has 314 states, 264 states have (on average 1.5833333333333333) internal successors, (418), 270 states have internal predecessors, (418), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:56,182 INFO L93 Difference]: Finished difference Result 607 states and 933 transitions. [2024-11-22 04:04:56,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:56,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 2 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 [2024-11-22 04:04:56,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:56,200 INFO L225 Difference]: With dead ends: 607 [2024-11-22 04:04:56,201 INFO L226 Difference]: Without dead ends: 304 [2024-11-22 04:04:56,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:56,211 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 130 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:56,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 771 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-22 04:04:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-11-22 04:04:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 256 states have (on average 1.48828125) internal successors, (381), 260 states have internal predecessors, (381), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 04:04:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 445 transitions. [2024-11-22 04:04:56,301 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 445 transitions. Word has length 65 [2024-11-22 04:04:56,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:56,303 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 445 transitions. [2024-11-22 04:04:56,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 445 transitions. [2024-11-22 04:04:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:56,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:56,310 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] [2024-11-22 04:04:56,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:04:56,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:56,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:56,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1018428179, now seen corresponding path program 1 times [2024-11-22 04:04:56,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:56,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130745739] [2024-11-22 04:04:56,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:56,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:56,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:56,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130745739] [2024-11-22 04:04:56,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130745739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:56,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:56,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:56,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695827856] [2024-11-22 04:04:56,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:56,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:56,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:56,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:56,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:56,590 INFO L87 Difference]: Start difference. First operand 304 states and 445 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:57,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:57,237 INFO L93 Difference]: Finished difference Result 495 states and 713 transitions. [2024-11-22 04:04:57,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:57,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:57,285 INFO L225 Difference]: With dead ends: 495 [2024-11-22 04:04:57,286 INFO L226 Difference]: Without dead ends: 407 [2024-11-22 04:04:57,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:57,291 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 334 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:57,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 971 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:04:57,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-22 04:04:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 400. [2024-11-22 04:04:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 332 states have (on average 1.4608433734939759) internal successors, (485), 338 states have internal predecessors, (485), 44 states have call successors, (44), 21 states have call predecessors, (44), 22 states have return successors, (47), 43 states have call predecessors, (47), 42 states have call successors, (47) [2024-11-22 04:04:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 576 transitions. [2024-11-22 04:04:57,344 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 576 transitions. Word has length 65 [2024-11-22 04:04:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:57,345 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 576 transitions. [2024-11-22 04:04:57,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:57,345 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 576 transitions. [2024-11-22 04:04:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:57,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:57,350 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] [2024-11-22 04:04:57,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:04:57,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:57,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:57,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1422214130, now seen corresponding path program 1 times [2024-11-22 04:04:57,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:57,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787611415] [2024-11-22 04:04:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:57,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:57,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:57,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787611415] [2024-11-22 04:04:57,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787611415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:57,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:57,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:57,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928642065] [2024-11-22 04:04:57,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:57,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:57,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:57,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:57,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:57,554 INFO L87 Difference]: Start difference. First operand 400 states and 576 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:58,285 INFO L93 Difference]: Finished difference Result 717 states and 1006 transitions. [2024-11-22 04:04:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:58,289 INFO L225 Difference]: With dead ends: 717 [2024-11-22 04:04:58,290 INFO L226 Difference]: Without dead ends: 540 [2024-11-22 04:04:58,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:58,293 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 650 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:58,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1208 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:04:58,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-22 04:04:58,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 496. [2024-11-22 04:04:58,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 408 states have (on average 1.4411764705882353) internal successors, (588), 416 states have internal predecessors, (588), 55 states have call successors, (55), 28 states have call predecessors, (55), 31 states have return successors, (66), 55 states have call predecessors, (66), 53 states have call successors, (66) [2024-11-22 04:04:58,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 709 transitions. [2024-11-22 04:04:58,359 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 709 transitions. Word has length 65 [2024-11-22 04:04:58,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:58,359 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 709 transitions. [2024-11-22 04:04:58,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:58,360 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 709 transitions. [2024-11-22 04:04:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:58,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:58,365 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] [2024-11-22 04:04:58,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:04:58,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:58,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:58,366 INFO L85 PathProgramCache]: Analyzing trace with hash -606371980, now seen corresponding path program 1 times [2024-11-22 04:04:58,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:58,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554327270] [2024-11-22 04:04:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:58,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:58,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:58,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:58,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554327270] [2024-11-22 04:04:58,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554327270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:58,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:58,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:58,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101018990] [2024-11-22 04:04:58,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:58,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:58,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:58,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:58,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:58,524 INFO L87 Difference]: Start difference. First operand 496 states and 709 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:58,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:58,588 INFO L93 Difference]: Finished difference Result 768 states and 1082 transitions. [2024-11-22 04:04:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:04:58,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:58,596 INFO L225 Difference]: With dead ends: 768 [2024-11-22 04:04:58,596 INFO L226 Difference]: Without dead ends: 501 [2024-11-22 04:04:58,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:58,598 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 0 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:58,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2205 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-22 04:04:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2024-11-22 04:04:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 412 states have (on average 1.4320388349514563) internal successors, (590), 420 states have internal predecessors, (590), 55 states have call successors, (55), 28 states have call predecessors, (55), 32 states have return successors, (67), 56 states have call predecessors, (67), 53 states have call successors, (67) [2024-11-22 04:04:58,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 712 transitions. [2024-11-22 04:04:58,649 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 712 transitions. Word has length 65 [2024-11-22 04:04:58,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:58,650 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 712 transitions. [2024-11-22 04:04:58,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:58,651 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 712 transitions. [2024-11-22 04:04:58,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:58,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:58,652 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] [2024-11-22 04:04:58,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:04:58,653 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:58,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1635731278, now seen corresponding path program 1 times [2024-11-22 04:04:58,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:58,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145832475] [2024-11-22 04:04:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:58,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:58,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:58,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145832475] [2024-11-22 04:04:58,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145832475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:58,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:58,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:58,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111901330] [2024-11-22 04:04:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:58,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:58,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:58,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:58,776 INFO L87 Difference]: Start difference. First operand 501 states and 712 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:58,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:58,828 INFO L93 Difference]: Finished difference Result 788 states and 1100 transitions. [2024-11-22 04:04:58,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:58,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:04:58,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:58,833 INFO L225 Difference]: With dead ends: 788 [2024-11-22 04:04:58,833 INFO L226 Difference]: Without dead ends: 516 [2024-11-22 04:04:58,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:58,837 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 0 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:58,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2205 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-22 04:04:58,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2024-11-22 04:04:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 424 states have (on average 1.419811320754717) internal successors, (602), 432 states have internal predecessors, (602), 55 states have call successors, (55), 28 states have call predecessors, (55), 35 states have return successors, (70), 59 states have call predecessors, (70), 53 states have call successors, (70) [2024-11-22 04:04:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 727 transitions. [2024-11-22 04:04:58,876 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 727 transitions. Word has length 65 [2024-11-22 04:04:58,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:58,877 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 727 transitions. [2024-11-22 04:04:58,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:58,878 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 727 transitions. [2024-11-22 04:04:58,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:58,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:58,882 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] [2024-11-22 04:04:58,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:04:58,882 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:58,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:58,883 INFO L85 PathProgramCache]: Analyzing trace with hash -249527884, now seen corresponding path program 1 times [2024-11-22 04:04:58,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:58,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074949478] [2024-11-22 04:04:58,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:58,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:59,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:59,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074949478] [2024-11-22 04:04:59,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074949478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:59,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:59,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:59,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416268780] [2024-11-22 04:04:59,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:59,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:59,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:59,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:59,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:59,090 INFO L87 Difference]: Start difference. First operand 516 states and 727 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:59,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:59,810 INFO L93 Difference]: Finished difference Result 887 states and 1208 transitions. [2024-11-22 04:04:59,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 04:04:59,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:59,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:59,815 INFO L225 Difference]: With dead ends: 887 [2024-11-22 04:04:59,815 INFO L226 Difference]: Without dead ends: 602 [2024-11-22 04:04:59,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:04:59,818 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 647 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:59,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1040 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:04:59,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-22 04:04:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 528. [2024-11-22 04:04:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 434 states have (on average 1.4101382488479262) internal successors, (612), 442 states have internal predecessors, (612), 56 states have call successors, (56), 29 states have call predecessors, (56), 36 states have return successors, (69), 60 states have call predecessors, (69), 54 states have call successors, (69) [2024-11-22 04:04:59,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 737 transitions. [2024-11-22 04:04:59,864 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 737 transitions. Word has length 65 [2024-11-22 04:04:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:59,866 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 737 transitions. [2024-11-22 04:04:59,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:59,867 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 737 transitions. [2024-11-22 04:04:59,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:59,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:59,868 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] [2024-11-22 04:04:59,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:04:59,869 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:59,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:59,869 INFO L85 PathProgramCache]: Analyzing trace with hash -383541390, now seen corresponding path program 1 times [2024-11-22 04:04:59,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:59,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854669752] [2024-11-22 04:04:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:59,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:59,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:59,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854669752] [2024-11-22 04:04:59,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854669752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:59,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:59,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:04:59,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786982081] [2024-11-22 04:04:59,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:59,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:04:59,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:59,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:04:59,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:04:59,941 INFO L87 Difference]: Start difference. First operand 528 states and 737 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:00,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:00,377 INFO L93 Difference]: Finished difference Result 1118 states and 1510 transitions. [2024-11-22 04:05:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:00,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:05:00,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:00,384 INFO L225 Difference]: With dead ends: 1118 [2024-11-22 04:05:00,384 INFO L226 Difference]: Without dead ends: 822 [2024-11-22 04:05:00,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:00,390 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 606 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:00,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 514 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:05:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-22 04:05:00,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 818. [2024-11-22 04:05:00,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 658 states have (on average 1.3617021276595744) internal successors, (896), 673 states have internal predecessors, (896), 91 states have call successors, (91), 51 states have call predecessors, (91), 67 states have return successors, (126), 100 states have call predecessors, (126), 89 states have call successors, (126) [2024-11-22 04:05:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1113 transitions. [2024-11-22 04:05:00,452 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1113 transitions. Word has length 65 [2024-11-22 04:05:00,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:00,453 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1113 transitions. [2024-11-22 04:05:00,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:00,453 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1113 transitions. [2024-11-22 04:05:00,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:05:00,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:00,458 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] [2024-11-22 04:05:00,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:05:00,459 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:00,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:00,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1678158755, now seen corresponding path program 1 times [2024-11-22 04:05:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229536753] [2024-11-22 04:05:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:00,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:00,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:00,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229536753] [2024-11-22 04:05:00,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229536753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:00,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:00,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679883090] [2024-11-22 04:05:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:00,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:00,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:00,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:00,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:00,515 INFO L87 Difference]: Start difference. First operand 818 states and 1113 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:05:00,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:00,628 INFO L93 Difference]: Finished difference Result 1929 states and 2568 transitions. [2024-11-22 04:05:00,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:00,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-22 04:05:00,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:00,637 INFO L225 Difference]: With dead ends: 1929 [2024-11-22 04:05:00,637 INFO L226 Difference]: Without dead ends: 1322 [2024-11-22 04:05:00,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:00,641 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 102 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:00,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 852 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:00,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-22 04:05:00,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1299. [2024-11-22 04:05:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1037 states have (on average 1.3297974927675988) internal successors, (1379), 1055 states have internal predecessors, (1379), 136 states have call successors, (136), 95 states have call predecessors, (136), 124 states have return successors, (198), 155 states have call predecessors, (198), 134 states have call successors, (198) [2024-11-22 04:05:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1713 transitions. [2024-11-22 04:05:00,734 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1713 transitions. Word has length 66 [2024-11-22 04:05:00,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:00,735 INFO L471 AbstractCegarLoop]: Abstraction has 1299 states and 1713 transitions. [2024-11-22 04:05:00,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:05:00,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1713 transitions. [2024-11-22 04:05:00,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:05:00,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:00,738 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] [2024-11-22 04:05:00,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:05:00,739 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:00,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:00,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1158568882, now seen corresponding path program 1 times [2024-11-22 04:05:00,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:00,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080102018] [2024-11-22 04:05:00,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:00,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:00,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:00,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080102018] [2024-11-22 04:05:00,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080102018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:00,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:00,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:00,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216272899] [2024-11-22 04:05:00,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:00,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:00,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:00,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:00,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:00,800 INFO L87 Difference]: Start difference. First operand 1299 states and 1713 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:05:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:00,952 INFO L93 Difference]: Finished difference Result 3327 states and 4330 transitions. [2024-11-22 04:05:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-22 04:05:00,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:00,966 INFO L225 Difference]: With dead ends: 3327 [2024-11-22 04:05:00,966 INFO L226 Difference]: Without dead ends: 2259 [2024-11-22 04:05:00,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:00,972 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 414 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:00,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 551 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:00,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2024-11-22 04:05:01,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2161. [2024-11-22 04:05:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 1703 states have (on average 1.2953611274221961) internal successors, (2206), 1731 states have internal predecessors, (2206), 234 states have call successors, (234), 179 states have call predecessors, (234), 222 states have return successors, (334), 257 states have call predecessors, (334), 232 states have call successors, (334) [2024-11-22 04:05:01,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2774 transitions. [2024-11-22 04:05:01,164 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2774 transitions. Word has length 66 [2024-11-22 04:05:01,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:01,165 INFO L471 AbstractCegarLoop]: Abstraction has 2161 states and 2774 transitions. [2024-11-22 04:05:01,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:05:01,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2774 transitions. [2024-11-22 04:05:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 04:05:01,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:01,168 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] [2024-11-22 04:05:01,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:05:01,169 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:01,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash 135899394, now seen corresponding path program 1 times [2024-11-22 04:05:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623878046] [2024-11-22 04:05:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:01,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:01,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:01,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:01,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623878046] [2024-11-22 04:05:01,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623878046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:01,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:01,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:01,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558152346] [2024-11-22 04:05:01,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:01,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:01,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:01,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:01,213 INFO L87 Difference]: Start difference. First operand 2161 states and 2774 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:05:01,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:01,511 INFO L93 Difference]: Finished difference Result 4863 states and 6188 transitions. [2024-11-22 04:05:01,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:01,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-22 04:05:01,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:01,529 INFO L225 Difference]: With dead ends: 4863 [2024-11-22 04:05:01,529 INFO L226 Difference]: Without dead ends: 2933 [2024-11-22 04:05:01,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:01,536 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 414 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:01,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 566 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2024-11-22 04:05:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2893. [2024-11-22 04:05:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2271 states have (on average 1.2813738441215323) internal successors, (2910), 2307 states have internal predecessors, (2910), 314 states have call successors, (314), 249 states have call predecessors, (314), 306 states have return successors, (443), 343 states have call predecessors, (443), 312 states have call successors, (443) [2024-11-22 04:05:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3667 transitions. [2024-11-22 04:05:01,799 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3667 transitions. Word has length 72 [2024-11-22 04:05:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:01,800 INFO L471 AbstractCegarLoop]: Abstraction has 2893 states and 3667 transitions. [2024-11-22 04:05:01,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:05:01,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3667 transitions. [2024-11-22 04:05:01,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 04:05:01,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:01,803 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] [2024-11-22 04:05:01,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:05:01,804 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:01,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash -598508016, now seen corresponding path program 1 times [2024-11-22 04:05:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045491049] [2024-11-22 04:05:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:01,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:01,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045491049] [2024-11-22 04:05:01,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045491049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:01,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:01,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:05:01,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224022845] [2024-11-22 04:05:01,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:01,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:01,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:01,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:01,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:01,901 INFO L87 Difference]: Start difference. First operand 2893 states and 3667 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:05:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:02,245 INFO L93 Difference]: Finished difference Result 3424 states and 4322 transitions. [2024-11-22 04:05:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:05:02,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-22 04:05:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:02,266 INFO L225 Difference]: With dead ends: 3424 [2024-11-22 04:05:02,267 INFO L226 Difference]: Without dead ends: 3421 [2024-11-22 04:05:02,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:02,269 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 825 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:02,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 545 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:05:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3421 states. [2024-11-22 04:05:02,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3421 to 3387. [2024-11-22 04:05:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 2656 states have (on average 1.2733433734939759) internal successors, (3382), 2697 states have internal predecessors, (3382), 364 states have call successors, (364), 293 states have call predecessors, (364), 365 states have return successors, (522), 403 states have call predecessors, (522), 363 states have call successors, (522) [2024-11-22 04:05:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4268 transitions. [2024-11-22 04:05:02,523 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4268 transitions. Word has length 73 [2024-11-22 04:05:02,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:02,524 INFO L471 AbstractCegarLoop]: Abstraction has 3387 states and 4268 transitions. [2024-11-22 04:05:02,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:05:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4268 transitions. [2024-11-22 04:05:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 04:05:02,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:02,527 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] [2024-11-22 04:05:02,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:05:02,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:02,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1374805236, now seen corresponding path program 1 times [2024-11-22 04:05:02,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:02,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278243901] [2024-11-22 04:05:02,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:02,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:02,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:02,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278243901] [2024-11-22 04:05:02,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278243901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:02,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796819172] [2024-11-22 04:05:02,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:02,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:02,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:02,662 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) [2024-11-22 04:05:02,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:05:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:02,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:05:02,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:03,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:05:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:03,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796819172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:05:03,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:05:03,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-22 04:05:03,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301592853] [2024-11-22 04:05:03,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:05:03,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:05:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:05:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:05:03,213 INFO L87 Difference]: Start difference. First operand 3387 states and 4268 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:05:04,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:04,098 INFO L93 Difference]: Finished difference Result 7268 states and 9122 transitions. [2024-11-22 04:05:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:05:04,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-22 04:05:04,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:04,135 INFO L225 Difference]: With dead ends: 7268 [2024-11-22 04:05:04,135 INFO L226 Difference]: Without dead ends: 7265 [2024-11-22 04:05:04,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:05:04,139 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1070 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:04,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2299 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:05:04,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2024-11-22 04:05:04,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 5177. [2024-11-22 04:05:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 4060 states have (on average 1.2704433497536947) internal successors, (5158), 4123 states have internal predecessors, (5158), 548 states have call successors, (548), 451 states have call predecessors, (548), 567 states have return successors, (800), 609 states have call predecessors, (800), 547 states have call successors, (800) [2024-11-22 04:05:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 6506 transitions. [2024-11-22 04:05:04,630 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 6506 transitions. Word has length 74 [2024-11-22 04:05:04,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:04,631 INFO L471 AbstractCegarLoop]: Abstraction has 5177 states and 6506 transitions. [2024-11-22 04:05:04,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:05:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 6506 transitions. [2024-11-22 04:05:04,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 04:05:04,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:04,634 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] [2024-11-22 04:05:04,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:05:04,834 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 [2024-11-22 04:05:04,835 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:04,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:04,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1132390512, now seen corresponding path program 2 times [2024-11-22 04:05:04,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:04,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551396553] [2024-11-22 04:05:04,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:05:04,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:04,852 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 04:05:04,853 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:05:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:04,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:04,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551396553] [2024-11-22 04:05:04,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551396553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:04,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:04,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:04,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631142799] [2024-11-22 04:05:04,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:04,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:04,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:04,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:04,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:04,879 INFO L87 Difference]: Start difference. First operand 5177 states and 6506 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:05:05,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:05,216 INFO L93 Difference]: Finished difference Result 7644 states and 9635 transitions. [2024-11-22 04:05:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:05,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-22 04:05:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:05,239 INFO L225 Difference]: With dead ends: 7644 [2024-11-22 04:05:05,240 INFO L226 Difference]: Without dead ends: 3569 [2024-11-22 04:05:05,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:05,253 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 414 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:05,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 645 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2024-11-22 04:05:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3549. [2024-11-22 04:05:05,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3549 states, 2788 states have (on average 1.2546628407460545) internal successors, (3498), 2829 states have internal predecessors, (3498), 380 states have call successors, (380), 307 states have call predecessors, (380), 379 states have return successors, (526), 419 states have call predecessors, (526), 379 states have call successors, (526) [2024-11-22 04:05:05,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4404 transitions. [2024-11-22 04:05:05,701 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4404 transitions. Word has length 77 [2024-11-22 04:05:05,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:05,702 INFO L471 AbstractCegarLoop]: Abstraction has 3549 states and 4404 transitions. [2024-11-22 04:05:05,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:05:05,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4404 transitions. [2024-11-22 04:05:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 04:05:05,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:05,709 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] [2024-11-22 04:05:05,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:05:05,710 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:05,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash 532498142, now seen corresponding path program 1 times [2024-11-22 04:05:05,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:05,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666344782] [2024-11-22 04:05:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:05,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 04:05:05,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:05,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666344782] [2024-11-22 04:05:05,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666344782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:05,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:05,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:05,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577063747] [2024-11-22 04:05:05,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:05,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:05,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:05,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:05,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:05,833 INFO L87 Difference]: Start difference. First operand 3549 states and 4404 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:07,355 INFO L93 Difference]: Finished difference Result 10385 states and 12769 transitions. [2024-11-22 04:05:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 04:05:07,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-22 04:05:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:07,408 INFO L225 Difference]: With dead ends: 10385 [2024-11-22 04:05:07,409 INFO L226 Difference]: Without dead ends: 5778 [2024-11-22 04:05:07,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-22 04:05:07,425 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 622 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:07,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1328 Invalid, 1101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 04:05:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5778 states. [2024-11-22 04:05:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5778 to 5521. [2024-11-22 04:05:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5521 states, 4308 states have (on average 1.2293407613741876) internal successors, (5296), 4385 states have internal predecessors, (5296), 589 states have call successors, (589), 489 states have call predecessors, (589), 622 states have return successors, (882), 653 states have call predecessors, (882), 588 states have call successors, (882) [2024-11-22 04:05:07,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5521 states to 5521 states and 6767 transitions. [2024-11-22 04:05:08,004 INFO L78 Accepts]: Start accepts. Automaton has 5521 states and 6767 transitions. Word has length 84 [2024-11-22 04:05:08,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:08,005 INFO L471 AbstractCegarLoop]: Abstraction has 5521 states and 6767 transitions. [2024-11-22 04:05:08,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:08,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5521 states and 6767 transitions. [2024-11-22 04:05:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 04:05:08,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:08,012 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] [2024-11-22 04:05:08,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:05:08,012 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:08,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:08,013 INFO L85 PathProgramCache]: Analyzing trace with hash 17095470, now seen corresponding path program 1 times [2024-11-22 04:05:08,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:08,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775483093] [2024-11-22 04:05:08,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:08,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 04:05:08,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775483093] [2024-11-22 04:05:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775483093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:08,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:08,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:05:08,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766943768] [2024-11-22 04:05:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:08,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:05:08,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:05:08,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:05:08,147 INFO L87 Difference]: Start difference. First operand 5521 states and 6767 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:09,500 INFO L93 Difference]: Finished difference Result 9545 states and 11650 transitions. [2024-11-22 04:05:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 04:05:09,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-22 04:05:09,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:09,533 INFO L225 Difference]: With dead ends: 9545 [2024-11-22 04:05:09,533 INFO L226 Difference]: Without dead ends: 4901 [2024-11-22 04:05:09,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:05:09,550 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 1250 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:09,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 1431 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 04:05:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4901 states. [2024-11-22 04:05:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4901 to 4620. [2024-11-22 04:05:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4620 states, 3613 states have (on average 1.2216994187655688) internal successors, (4414), 3673 states have internal predecessors, (4414), 493 states have call successors, (493), 404 states have call predecessors, (493), 512 states have return successors, (670), 549 states have call predecessors, (670), 492 states have call successors, (670) [2024-11-22 04:05:10,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 5577 transitions. [2024-11-22 04:05:10,218 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 5577 transitions. Word has length 93 [2024-11-22 04:05:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:10,219 INFO L471 AbstractCegarLoop]: Abstraction has 4620 states and 5577 transitions. [2024-11-22 04:05:10,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 5577 transitions. [2024-11-22 04:05:10,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:10,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:10,225 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] [2024-11-22 04:05:10,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:05:10,225 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:10,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:10,226 INFO L85 PathProgramCache]: Analyzing trace with hash -890336660, now seen corresponding path program 1 times [2024-11-22 04:05:10,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:10,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866615165] [2024-11-22 04:05:10,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:10,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:10,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:10,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866615165] [2024-11-22 04:05:10,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866615165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:10,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:10,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707829633] [2024-11-22 04:05:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:10,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:10,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:10,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:10,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:10,279 INFO L87 Difference]: Start difference. First operand 4620 states and 5577 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:10,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:10,751 INFO L93 Difference]: Finished difference Result 4818 states and 5875 transitions. [2024-11-22 04:05:10,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:10,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:10,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:10,781 INFO L225 Difference]: With dead ends: 4818 [2024-11-22 04:05:10,781 INFO L226 Difference]: Without dead ends: 4620 [2024-11-22 04:05:10,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:10,784 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 304 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:10,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 570 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:10,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4620 states. [2024-11-22 04:05:11,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 4620. [2024-11-22 04:05:11,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4620 states, 3613 states have (on average 1.2214226404649875) internal successors, (4413), 3673 states have internal predecessors, (4413), 493 states have call successors, (493), 404 states have call predecessors, (493), 512 states have return successors, (670), 549 states have call predecessors, (670), 492 states have call successors, (670) [2024-11-22 04:05:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 5576 transitions. [2024-11-22 04:05:11,204 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 5576 transitions. Word has length 101 [2024-11-22 04:05:11,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:11,204 INFO L471 AbstractCegarLoop]: Abstraction has 4620 states and 5576 transitions. [2024-11-22 04:05:11,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 5576 transitions. [2024-11-22 04:05:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:11,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:11,209 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] [2024-11-22 04:05:11,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:05:11,209 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:11,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:11,210 INFO L85 PathProgramCache]: Analyzing trace with hash -119603094, now seen corresponding path program 1 times [2024-11-22 04:05:11,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:11,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070678120] [2024-11-22 04:05:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:11,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:11,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:11,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070678120] [2024-11-22 04:05:11,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070678120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:11,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:11,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:11,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067648142] [2024-11-22 04:05:11,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:11,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:11,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:11,311 INFO L87 Difference]: Start difference. First operand 4620 states and 5576 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:12,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:12,165 INFO L93 Difference]: Finished difference Result 5030 states and 6204 transitions. [2024-11-22 04:05:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:12,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:12,190 INFO L225 Difference]: With dead ends: 5030 [2024-11-22 04:05:12,191 INFO L226 Difference]: Without dead ends: 4835 [2024-11-22 04:05:12,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:12,194 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 727 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:12,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1021 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:05:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4835 states. [2024-11-22 04:05:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4835 to 4820. [2024-11-22 04:05:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 3792 states have (on average 1.2362869198312236) internal successors, (4688), 3853 states have internal predecessors, (4688), 507 states have call successors, (507), 410 states have call predecessors, (507), 519 states have return successors, (685), 563 states have call predecessors, (685), 506 states have call successors, (685) [2024-11-22 04:05:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 5880 transitions. [2024-11-22 04:05:12,622 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 5880 transitions. Word has length 101 [2024-11-22 04:05:12,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:12,622 INFO L471 AbstractCegarLoop]: Abstraction has 4820 states and 5880 transitions. [2024-11-22 04:05:12,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 5880 transitions. [2024-11-22 04:05:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:12,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:12,628 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] [2024-11-22 04:05:12,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:05:12,629 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:12,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:12,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1836487698, now seen corresponding path program 1 times [2024-11-22 04:05:12,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:12,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147189478] [2024-11-22 04:05:12,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:12,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:12,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:12,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147189478] [2024-11-22 04:05:12,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147189478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:12,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:12,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:12,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940342313] [2024-11-22 04:05:12,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:12,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:12,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:12,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:12,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:12,758 INFO L87 Difference]: Start difference. First operand 4820 states and 5880 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:13,799 INFO L93 Difference]: Finished difference Result 5460 states and 6863 transitions. [2024-11-22 04:05:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:13,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:13,823 INFO L225 Difference]: With dead ends: 5460 [2024-11-22 04:05:13,824 INFO L226 Difference]: Without dead ends: 5065 [2024-11-22 04:05:13,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:13,829 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 720 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:13,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1828 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:05:13,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2024-11-22 04:05:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 5006. [2024-11-22 04:05:14,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5006 states, 3957 states have (on average 1.2471569370735405) internal successors, (4935), 4019 states have internal predecessors, (4935), 521 states have call successors, (521), 416 states have call predecessors, (521), 526 states have return successors, (702), 578 states have call predecessors, (702), 520 states have call successors, (702) [2024-11-22 04:05:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 6158 transitions. [2024-11-22 04:05:14,251 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 6158 transitions. Word has length 101 [2024-11-22 04:05:14,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:14,251 INFO L471 AbstractCegarLoop]: Abstraction has 5006 states and 6158 transitions. [2024-11-22 04:05:14,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 6158 transitions. [2024-11-22 04:05:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:14,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:14,256 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] [2024-11-22 04:05:14,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:05:14,257 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:14,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:14,257 INFO L85 PathProgramCache]: Analyzing trace with hash -511631504, now seen corresponding path program 1 times [2024-11-22 04:05:14,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:14,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41397552] [2024-11-22 04:05:14,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:14,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:14,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:14,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:14,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41397552] [2024-11-22 04:05:14,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41397552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:14,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:14,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:14,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938941934] [2024-11-22 04:05:14,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:14,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:14,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:14,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:14,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:14,369 INFO L87 Difference]: Start difference. First operand 5006 states and 6158 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:15,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:15,783 INFO L93 Difference]: Finished difference Result 6043 states and 7746 transitions. [2024-11-22 04:05:15,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:15,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:15,809 INFO L225 Difference]: With dead ends: 6043 [2024-11-22 04:05:15,810 INFO L226 Difference]: Without dead ends: 5462 [2024-11-22 04:05:15,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:15,816 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 715 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:15,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1812 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:05:15,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5462 states. [2024-11-22 04:05:16,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5462 to 5397. [2024-11-22 04:05:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5397 states, 4304 states have (on average 1.2685873605947955) internal successors, (5460), 4370 states have internal predecessors, (5460), 549 states have call successors, (549), 428 states have call predecessors, (549), 542 states have return successors, (742), 608 states have call predecessors, (742), 548 states have call successors, (742) [2024-11-22 04:05:16,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5397 states to 5397 states and 6751 transitions. [2024-11-22 04:05:16,399 INFO L78 Accepts]: Start accepts. Automaton has 5397 states and 6751 transitions. Word has length 101 [2024-11-22 04:05:16,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:16,399 INFO L471 AbstractCegarLoop]: Abstraction has 5397 states and 6751 transitions. [2024-11-22 04:05:16,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5397 states and 6751 transitions. [2024-11-22 04:05:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:16,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:16,407 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] [2024-11-22 04:05:16,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:05:16,408 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:16,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:16,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1055126446, now seen corresponding path program 1 times [2024-11-22 04:05:16,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:16,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586835402] [2024-11-22 04:05:16,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:16,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:16,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:16,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586835402] [2024-11-22 04:05:16,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586835402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:16,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:16,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:16,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688915804] [2024-11-22 04:05:16,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:16,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:16,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:16,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:16,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:16,507 INFO L87 Difference]: Start difference. First operand 5397 states and 6751 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:17,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:17,588 INFO L93 Difference]: Finished difference Result 7280 states and 9657 transitions. [2024-11-22 04:05:17,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:17,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:17,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:17,617 INFO L225 Difference]: With dead ends: 7280 [2024-11-22 04:05:17,618 INFO L226 Difference]: Without dead ends: 6308 [2024-11-22 04:05:17,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:17,626 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 710 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:17,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1800 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:05:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6308 states. [2024-11-22 04:05:18,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6308 to 6230. [2024-11-22 04:05:18,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6230 states, 5043 states have (on average 1.307158437438033) internal successors, (6592), 5123 states have internal predecessors, (6592), 605 states have call successors, (605), 452 states have call predecessors, (605), 580 states have return successors, (846), 668 states have call predecessors, (846), 604 states have call successors, (846) [2024-11-22 04:05:18,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6230 states to 6230 states and 8043 transitions. [2024-11-22 04:05:18,151 INFO L78 Accepts]: Start accepts. Automaton has 6230 states and 8043 transitions. Word has length 101 [2024-11-22 04:05:18,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:18,152 INFO L471 AbstractCegarLoop]: Abstraction has 6230 states and 8043 transitions. [2024-11-22 04:05:18,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:18,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6230 states and 8043 transitions. [2024-11-22 04:05:18,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:18,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:18,159 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] [2024-11-22 04:05:18,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:05:18,159 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:18,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2711632, now seen corresponding path program 1 times [2024-11-22 04:05:18,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:18,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670219728] [2024-11-22 04:05:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:18,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:18,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:18,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670219728] [2024-11-22 04:05:18,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670219728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:18,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:18,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:18,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261665812] [2024-11-22 04:05:18,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:18,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:18,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:18,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:18,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:18,262 INFO L87 Difference]: Start difference. First operand 6230 states and 8043 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:19,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:19,545 INFO L93 Difference]: Finished difference Result 9939 states and 13891 transitions. [2024-11-22 04:05:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:19,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:19,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:19,582 INFO L225 Difference]: With dead ends: 9939 [2024-11-22 04:05:19,583 INFO L226 Difference]: Without dead ends: 8134 [2024-11-22 04:05:19,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:19,595 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 705 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:19,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1788 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:05:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8134 states. [2024-11-22 04:05:20,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8134 to 8031. [2024-11-22 04:05:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8031 states, 6638 states have (on average 1.366074118710455) internal successors, (9068), 6764 states have internal predecessors, (9068), 717 states have call successors, (717), 500 states have call predecessors, (717), 674 states have return successors, (1150), 788 states have call predecessors, (1150), 716 states have call successors, (1150) [2024-11-22 04:05:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8031 states to 8031 states and 10935 transitions. [2024-11-22 04:05:20,377 INFO L78 Accepts]: Start accepts. Automaton has 8031 states and 10935 transitions. Word has length 101 [2024-11-22 04:05:20,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:20,378 INFO L471 AbstractCegarLoop]: Abstraction has 8031 states and 10935 transitions. [2024-11-22 04:05:20,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 8031 states and 10935 transitions. [2024-11-22 04:05:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:20,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:20,385 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] [2024-11-22 04:05:20,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:05:20,385 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:20,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:20,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1145214098, now seen corresponding path program 1 times [2024-11-22 04:05:20,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:20,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142183502] [2024-11-22 04:05:20,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:20,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:20,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:20,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:20,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142183502] [2024-11-22 04:05:20,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142183502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:20,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:20,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:20,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819039559] [2024-11-22 04:05:20,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:20,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:20,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:20,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:20,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:20,486 INFO L87 Difference]: Start difference. First operand 8031 states and 10935 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:21,951 INFO L93 Difference]: Finished difference Result 16378 states and 24534 transitions. [2024-11-22 04:05:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:21,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:22,009 INFO L225 Difference]: With dead ends: 16378 [2024-11-22 04:05:22,009 INFO L226 Difference]: Without dead ends: 12772 [2024-11-22 04:05:22,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:22,029 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 753 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:22,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1763 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:05:22,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2024-11-22 04:05:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 11936. [2024-11-22 04:05:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11936 states, 10093 states have (on average 1.438620826315268) internal successors, (14520), 10365 states have internal predecessors, (14520), 925 states have call successors, (925), 596 states have call predecessors, (925), 916 states have return successors, (2126), 1012 states have call predecessors, (2126), 924 states have call successors, (2126) [2024-11-22 04:05:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11936 states to 11936 states and 17571 transitions. [2024-11-22 04:05:23,104 INFO L78 Accepts]: Start accepts. Automaton has 11936 states and 17571 transitions. Word has length 101 [2024-11-22 04:05:23,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:23,107 INFO L471 AbstractCegarLoop]: Abstraction has 11936 states and 17571 transitions. [2024-11-22 04:05:23,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:23,107 INFO L276 IsEmpty]: Start isEmpty. Operand 11936 states and 17571 transitions. [2024-11-22 04:05:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:23,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:23,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:23,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:05:23,118 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:23,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash -904974352, now seen corresponding path program 1 times [2024-11-22 04:05:23,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:23,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126674957] [2024-11-22 04:05:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:23,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:23,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126674957] [2024-11-22 04:05:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126674957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:23,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:23,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:23,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285055842] [2024-11-22 04:05:23,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:23,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:23,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:23,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:23,221 INFO L87 Difference]: Start difference. First operand 11936 states and 17571 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:24,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:24,893 INFO L93 Difference]: Finished difference Result 29445 states and 48004 transitions. [2024-11-22 04:05:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:24,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:25,017 INFO L225 Difference]: With dead ends: 29445 [2024-11-22 04:05:25,018 INFO L226 Difference]: Without dead ends: 21934 [2024-11-22 04:05:25,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:25,063 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 853 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:25,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1325 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:05:25,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21934 states. [2024-11-22 04:05:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21934 to 20429. [2024-11-22 04:05:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20429 states, 17540 states have (on average 1.506043329532497) internal successors, (26416), 18266 states have internal predecessors, (26416), 1325 states have call successors, (1325), 788 states have call predecessors, (1325), 1562 states have return successors, (5598), 1444 states have call predecessors, (5598), 1324 states have call successors, (5598) [2024-11-22 04:05:26,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20429 states to 20429 states and 33339 transitions. [2024-11-22 04:05:26,599 INFO L78 Accepts]: Start accepts. Automaton has 20429 states and 33339 transitions. Word has length 101 [2024-11-22 04:05:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:26,600 INFO L471 AbstractCegarLoop]: Abstraction has 20429 states and 33339 transitions. [2024-11-22 04:05:26,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 20429 states and 33339 transitions. [2024-11-22 04:05:26,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:26,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:26,615 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] [2024-11-22 04:05:26,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:05:26,615 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:26,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash -65940690, now seen corresponding path program 1 times [2024-11-22 04:05:26,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:26,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526846327] [2024-11-22 04:05:26,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:26,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:26,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:26,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:26,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526846327] [2024-11-22 04:05:26,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526846327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:26,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:26,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:26,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638994188] [2024-11-22 04:05:26,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:26,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:26,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:26,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:26,720 INFO L87 Difference]: Start difference. First operand 20429 states and 33339 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:29,999 INFO L93 Difference]: Finished difference Result 57876 states and 105530 transitions. [2024-11-22 04:05:30,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:30,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:30,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:30,275 INFO L225 Difference]: With dead ends: 57876 [2024-11-22 04:05:30,276 INFO L226 Difference]: Without dead ends: 41872 [2024-11-22 04:05:30,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:30,375 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 723 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:30,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1739 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:05:30,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41872 states. [2024-11-22 04:05:33,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41872 to 39666. [2024-11-22 04:05:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39666 states, 34231 states have (on average 1.5566007420174695) internal successors, (53284), 36351 states have internal predecessors, (53284), 2093 states have call successors, (2093), 1172 states have call predecessors, (2093), 3340 states have return successors, (18654), 2276 states have call predecessors, (18654), 2092 states have call successors, (18654) [2024-11-22 04:05:34,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39666 states to 39666 states and 74031 transitions. [2024-11-22 04:05:34,033 INFO L78 Accepts]: Start accepts. Automaton has 39666 states and 74031 transitions. Word has length 101 [2024-11-22 04:05:34,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:34,034 INFO L471 AbstractCegarLoop]: Abstraction has 39666 states and 74031 transitions. [2024-11-22 04:05:34,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:34,034 INFO L276 IsEmpty]: Start isEmpty. Operand 39666 states and 74031 transitions. [2024-11-22 04:05:34,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:34,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:34,060 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] [2024-11-22 04:05:34,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:05:34,061 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:34,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash -38875088, now seen corresponding path program 1 times [2024-11-22 04:05:34,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:34,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250050396] [2024-11-22 04:05:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:34,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:34,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250050396] [2024-11-22 04:05:34,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250050396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:34,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:34,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:34,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287111169] [2024-11-22 04:05:34,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:34,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:34,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:34,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:34,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:34,187 INFO L87 Difference]: Start difference. First operand 39666 states and 74031 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:40,014 INFO L93 Difference]: Finished difference Result 118433 states and 253564 transitions. [2024-11-22 04:05:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:40,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 04:05:40,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:40,669 INFO L225 Difference]: With dead ends: 118433 [2024-11-22 04:05:40,669 INFO L226 Difference]: Without dead ends: 83192 [2024-11-22 04:05:40,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:40,834 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 726 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:40,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1713 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:05:40,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83192 states. [2024-11-22 04:05:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83192 to 80864. [2024-11-22 04:05:48,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80864 states, 68943 states have (on average 1.5706598204313709) internal successors, (108286), 75309 states have internal predecessors, (108286), 3565 states have call successors, (3565), 1940 states have call predecessors, (3565), 8354 states have return successors, (69278), 3876 states have call predecessors, (69278), 3564 states have call successors, (69278) [2024-11-22 04:05:49,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80864 states to 80864 states and 181129 transitions. [2024-11-22 04:05:49,602 INFO L78 Accepts]: Start accepts. Automaton has 80864 states and 181129 transitions. Word has length 101 [2024-11-22 04:05:49,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:49,603 INFO L471 AbstractCegarLoop]: Abstraction has 80864 states and 181129 transitions. [2024-11-22 04:05:49,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:49,603 INFO L276 IsEmpty]: Start isEmpty. Operand 80864 states and 181129 transitions. [2024-11-22 04:05:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:05:49,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:49,649 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] [2024-11-22 04:05:49,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:05:49,649 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:49,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:49,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1695229362, now seen corresponding path program 1 times [2024-11-22 04:05:49,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:49,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176024242] [2024-11-22 04:05:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:49,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:49,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:49,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176024242] [2024-11-22 04:05:49,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176024242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:49,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:49,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213271118] [2024-11-22 04:05:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:49,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:49,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:49,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:49,768 INFO L87 Difference]: Start difference. First operand 80864 states and 181129 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)