./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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.07.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7b83251f9a608d2befdac3ab06beaba9889f30d8ab1cb865fc88ebdabcb52dd --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:56:22,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:56:22,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:56:22,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:56:22,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:56:22,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:56:22,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:56:22,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:56:22,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:56:22,789 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:56:22,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:56:22,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:56:22,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:56:22,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:56:22,795 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:56:22,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:56:22,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:56:22,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:56:22,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:56:22,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:56:22,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:56:22,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:56:22,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:56:22,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:56:22,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:56:22,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:56:22,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:56:22,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:56:22,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:56:22,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:56:22,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:56:22,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:56:22,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:56:22,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:56:22,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:56:22,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:56:22,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:56:22,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:56:22,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:56:22,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:56:22,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:56:22,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:56:22,804 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b83251f9a608d2befdac3ab06beaba9889f30d8ab1cb865fc88ebdabcb52dd [2024-11-11 22:56:23,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:56:23,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:56:23,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:56:23,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:56:23,119 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:56:23,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2024-11-11 22:56:24,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:56:24,826 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:56:24,827 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2024-11-11 22:56:24,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e2ffb46/8d2ee1542ebe4071adc5aac309bb7510/FLAGd97a40636 [2024-11-11 22:56:25,179 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e2ffb46/8d2ee1542ebe4071adc5aac309bb7510 [2024-11-11 22:56:25,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:56:25,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:56:25,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:56:25,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:56:25,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:56:25,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af26280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25, skipping insertion in model container [2024-11-11 22:56:25,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:56:25,439 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[914,927] [2024-11-11 22:56:25,511 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[7115,7128] [2024-11-11 22:56:25,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:56:25,593 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:56:25,605 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[914,927] [2024-11-11 22:56:25,624 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[7115,7128] [2024-11-11 22:56:25,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:56:25,690 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:56:25,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25 WrapperNode [2024-11-11 22:56:25,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:56:25,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:56:25,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:56:25,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:56:25,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,791 INFO L138 Inliner]: procedures = 67, calls = 79, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 774 [2024-11-11 22:56:25,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:56:25,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:56:25,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:56:25,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:56:25,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,847 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]. [2024-11-11 22:56:25,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:56:25,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:56:25,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:56:25,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:56:25,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (1/1) ... [2024-11-11 22:56:25,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:56:25,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:25,925 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) [2024-11-11 22:56:25,928 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 [2024-11-11 22:56:25,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:56:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:56:25,980 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:56:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:56:25,981 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:56:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:56:25,981 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:56:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:56:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:56:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:56:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:56:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:56:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:56:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:56:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:56:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:56:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:56:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:56:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:56:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:56:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:56:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:56:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:56:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:56:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:56:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:56:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:56:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:56:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:56:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:56:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:56:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:56:25,984 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 22:56:25,984 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 22:56:26,121 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:56:26,124 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:56:26,934 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-11-11 22:56:26,934 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:56:26,965 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:56:26,965 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-11 22:56:26,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:56:26 BoogieIcfgContainer [2024-11-11 22:56:26,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:56:26,968 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:56:26,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:56:26,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:56:26,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:56:25" (1/3) ... [2024-11-11 22:56:26,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e1b0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:56:26, skipping insertion in model container [2024-11-11 22:56:26,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:25" (2/3) ... [2024-11-11 22:56:26,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e1b0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:56:26, skipping insertion in model container [2024-11-11 22:56:26,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:56:26" (3/3) ... [2024-11-11 22:56:26,977 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2024-11-11 22:56:26,997 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:56:26,997 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:56:27,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:56:27,094 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;@8d120f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:56:27,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:56:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 374 states, 319 states have (on average 1.6050156739811912) internal successors, (512), 327 states have internal predecessors, (512), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-11 22:56:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:27,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:27,115 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:27,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:27,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:27,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1154220689, now seen corresponding path program 1 times [2024-11-11 22:56:27,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:27,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136519269] [2024-11-11 22:56:27,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:27,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:27,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:27,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136519269] [2024-11-11 22:56:27,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136519269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:27,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:27,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:27,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671131999] [2024-11-11 22:56:27,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:27,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:27,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:27,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:27,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:27,682 INFO L87 Difference]: Start difference. First operand has 374 states, 319 states have (on average 1.6050156739811912) internal successors, (512), 327 states have internal predecessors, (512), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:28,530 INFO L93 Difference]: Finished difference Result 743 states and 1163 transitions. [2024-11-11 22:56:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 22:56:28,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:28,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:28,552 INFO L225 Difference]: With dead ends: 743 [2024-11-11 22:56:28,552 INFO L226 Difference]: Without dead ends: 381 [2024-11-11 22:56:28,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:56:28,563 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 765 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:28,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1055 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:28,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-11 22:56:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 363. [2024-11-11 22:56:28,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 311 states have (on average 1.5144694533762058) internal successors, (471), 316 states have internal predecessors, (471), 37 states have call successors, (37), 15 states have call predecessors, (37), 13 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-11 22:56:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 541 transitions. [2024-11-11 22:56:28,670 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 541 transitions. Word has length 65 [2024-11-11 22:56:28,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:28,671 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 541 transitions. [2024-11-11 22:56:28,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:28,672 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 541 transitions. [2024-11-11 22:56:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:28,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:28,677 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:28,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:56:28,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:28,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:28,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1194895439, now seen corresponding path program 1 times [2024-11-11 22:56:28,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:28,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501998687] [2024-11-11 22:56:28,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:28,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:28,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:28,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501998687] [2024-11-11 22:56:28,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501998687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:28,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:28,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:28,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329763772] [2024-11-11 22:56:28,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:28,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:28,970 INFO L87 Difference]: Start difference. First operand 363 states and 541 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:29,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:29,961 INFO L93 Difference]: Finished difference Result 586 states and 855 transitions. [2024-11-11 22:56:29,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:29,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:29,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:29,970 INFO L225 Difference]: With dead ends: 586 [2024-11-11 22:56:29,971 INFO L226 Difference]: Without dead ends: 498 [2024-11-11 22:56:29,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:56:29,974 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 908 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:29,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1342 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:29,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-11 22:56:30,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 459. [2024-11-11 22:56:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 387 states have (on average 1.4857881136950903) internal successors, (575), 394 states have internal predecessors, (575), 48 states have call successors, (48), 22 states have call predecessors, (48), 22 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2024-11-11 22:56:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 672 transitions. [2024-11-11 22:56:30,035 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 672 transitions. Word has length 65 [2024-11-11 22:56:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:30,035 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 672 transitions. [2024-11-11 22:56:30,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:30,036 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 672 transitions. [2024-11-11 22:56:30,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:30,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:30,039 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:30,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:56:30,040 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:30,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash 483993201, now seen corresponding path program 1 times [2024-11-11 22:56:30,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:30,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859523493] [2024-11-11 22:56:30,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:30,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:30,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:30,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859523493] [2024-11-11 22:56:30,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859523493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:30,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:30,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:30,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800016415] [2024-11-11 22:56:30,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:30,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:30,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:30,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:30,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:30,286 INFO L87 Difference]: Start difference. First operand 459 states and 672 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:31,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:31,451 INFO L93 Difference]: Finished difference Result 806 states and 1148 transitions. [2024-11-11 22:56:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:56:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:31,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:31,458 INFO L225 Difference]: With dead ends: 806 [2024-11-11 22:56:31,458 INFO L226 Difference]: Without dead ends: 629 [2024-11-11 22:56:31,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:56:31,461 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 1065 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:31,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1872 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:56:31,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-11 22:56:31,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 555. [2024-11-11 22:56:31,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 463 states have (on average 1.4643628509719222) internal successors, (678), 472 states have internal predecessors, (678), 59 states have call successors, (59), 29 states have call predecessors, (59), 31 states have return successors, (68), 57 states have call predecessors, (68), 55 states have call successors, (68) [2024-11-11 22:56:31,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2024-11-11 22:56:31,538 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 65 [2024-11-11 22:56:31,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:31,538 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2024-11-11 22:56:31,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:31,539 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2024-11-11 22:56:31,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:31,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:31,541 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:31,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:56:31,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:31,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1544592909, now seen corresponding path program 1 times [2024-11-11 22:56:31,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:31,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670030173] [2024-11-11 22:56:31,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:31,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:31,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:31,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670030173] [2024-11-11 22:56:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670030173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:31,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:31,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:31,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135261476] [2024-11-11 22:56:31,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:31,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:31,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:31,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:31,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:31,706 INFO L87 Difference]: Start difference. First operand 555 states and 805 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:32,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:32,818 INFO L93 Difference]: Finished difference Result 876 states and 1250 transitions. [2024-11-11 22:56:32,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:56:32,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-11 22:56:32,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:32,827 INFO L225 Difference]: With dead ends: 876 [2024-11-11 22:56:32,827 INFO L226 Difference]: Without dead ends: 609 [2024-11-11 22:56:32,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:56:32,831 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 446 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:32,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 2195 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:56:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-11 22:56:32,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 570. [2024-11-11 22:56:32,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 475 states have (on average 1.4526315789473685) internal successors, (690), 484 states have internal predecessors, (690), 59 states have call successors, (59), 29 states have call predecessors, (59), 34 states have return successors, (71), 60 states have call predecessors, (71), 55 states have call successors, (71) [2024-11-11 22:56:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 820 transitions. [2024-11-11 22:56:32,887 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 820 transitions. Word has length 65 [2024-11-11 22:56:32,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:32,889 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 820 transitions. [2024-11-11 22:56:32,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 820 transitions. [2024-11-11 22:56:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:32,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:32,891 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:32,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:56:32,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:32,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:32,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1364170993, now seen corresponding path program 1 times [2024-11-11 22:56:32,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:32,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630118965] [2024-11-11 22:56:32,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:32,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:33,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:33,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:33,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:33,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:33,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:33,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630118965] [2024-11-11 22:56:33,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630118965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:33,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:33,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:33,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145822356] [2024-11-11 22:56:33,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:33,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:33,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:33,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:33,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:33,058 INFO L87 Difference]: Start difference. First operand 570 states and 820 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:34,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:34,082 INFO L93 Difference]: Finished difference Result 886 states and 1249 transitions. [2024-11-11 22:56:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:34,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-11 22:56:34,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:34,086 INFO L225 Difference]: With dead ends: 886 [2024-11-11 22:56:34,086 INFO L226 Difference]: Without dead ends: 604 [2024-11-11 22:56:34,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:56:34,088 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 669 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:34,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1948 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:56:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-11 22:56:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 575. [2024-11-11 22:56:34,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 479 states have (on average 1.4446764091858038) internal successors, (692), 488 states have internal predecessors, (692), 59 states have call successors, (59), 29 states have call predecessors, (59), 35 states have return successors, (72), 61 states have call predecessors, (72), 55 states have call successors, (72) [2024-11-11 22:56:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 823 transitions. [2024-11-11 22:56:34,122 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 823 transitions. Word has length 65 [2024-11-11 22:56:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:34,123 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 823 transitions. [2024-11-11 22:56:34,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 823 transitions. [2024-11-11 22:56:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:34,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:34,125 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:34,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:56:34,125 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:34,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:34,126 INFO L85 PathProgramCache]: Analyzing trace with hash 334811695, now seen corresponding path program 1 times [2024-11-11 22:56:34,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:34,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206529902] [2024-11-11 22:56:34,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:34,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:34,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:34,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206529902] [2024-11-11 22:56:34,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206529902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:34,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:34,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:34,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511321677] [2024-11-11 22:56:34,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:34,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:34,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:34,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:34,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:34,280 INFO L87 Difference]: Start difference. First operand 575 states and 823 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:56:36,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:36,138 INFO L93 Difference]: Finished difference Result 2286 states and 3152 transitions. [2024-11-11 22:56:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:56:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 22:56:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:36,146 INFO L225 Difference]: With dead ends: 2286 [2024-11-11 22:56:36,147 INFO L226 Difference]: Without dead ends: 1999 [2024-11-11 22:56:36,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:56:36,149 INFO L435 NwaCegarLoop]: 443 mSDtfsCounter, 2117 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:36,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 2059 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:56:36,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2024-11-11 22:56:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1745. [2024-11-11 22:56:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1403 states have (on average 1.3521026372059872) internal successors, (1897), 1432 states have internal predecessors, (1897), 176 states have call successors, (176), 131 states have call predecessors, (176), 164 states have return successors, (267), 185 states have call predecessors, (267), 172 states have call successors, (267) [2024-11-11 22:56:36,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2340 transitions. [2024-11-11 22:56:36,269 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2340 transitions. Word has length 65 [2024-11-11 22:56:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:36,269 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2340 transitions. [2024-11-11 22:56:36,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:56:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2340 transitions. [2024-11-11 22:56:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:36,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:36,271 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:36,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:56:36,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:36,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1314224519, now seen corresponding path program 1 times [2024-11-11 22:56:36,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:36,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280459160] [2024-11-11 22:56:36,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:36,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:36,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:36,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280459160] [2024-11-11 22:56:36,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280459160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:36,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:36,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:36,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352232022] [2024-11-11 22:56:36,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:36,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:36,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:36,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:36,504 INFO L87 Difference]: Start difference. First operand 1745 states and 2340 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:37,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:37,691 INFO L93 Difference]: Finished difference Result 3202 states and 4217 transitions. [2024-11-11 22:56:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-11 22:56:37,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:37,702 INFO L225 Difference]: With dead ends: 3202 [2024-11-11 22:56:37,702 INFO L226 Difference]: Without dead ends: 1965 [2024-11-11 22:56:37,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-11 22:56:37,708 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 1065 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:37,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1595 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:37,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-11 22:56:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1723. [2024-11-11 22:56:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1389 states have (on average 1.349892008639309) internal successors, (1875), 1412 states have internal predecessors, (1875), 176 states have call successors, (176), 131 states have call predecessors, (176), 156 states have return successors, (251), 183 states have call predecessors, (251), 172 states have call successors, (251) [2024-11-11 22:56:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2302 transitions. [2024-11-11 22:56:37,830 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2302 transitions. Word has length 65 [2024-11-11 22:56:37,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:37,831 INFO L471 AbstractCegarLoop]: Abstraction has 1723 states and 2302 transitions. [2024-11-11 22:56:37,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:37,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2302 transitions. [2024-11-11 22:56:37,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:37,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:37,832 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:37,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:56:37,833 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:37,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:37,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1180211013, now seen corresponding path program 1 times [2024-11-11 22:56:37,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:37,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355637241] [2024-11-11 22:56:37,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:37,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:37,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:37,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355637241] [2024-11-11 22:56:37,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355637241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:37,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:37,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:37,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952385971] [2024-11-11 22:56:37,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:37,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:37,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:37,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:37,981 INFO L87 Difference]: Start difference. First operand 1723 states and 2302 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:38,834 INFO L93 Difference]: Finished difference Result 4591 states and 6033 transitions. [2024-11-11 22:56:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:56:38,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:38,851 INFO L225 Difference]: With dead ends: 4591 [2024-11-11 22:56:38,852 INFO L226 Difference]: Without dead ends: 3159 [2024-11-11 22:56:38,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:56:38,857 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 1029 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:38,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1321 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:38,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2024-11-11 22:56:39,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2869. [2024-11-11 22:56:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2287 states have (on average 1.3069523393091387) internal successors, (2989), 2325 states have internal predecessors, (2989), 295 states have call successors, (295), 233 states have call predecessors, (295), 285 states have return successors, (477), 314 states have call predecessors, (477), 291 states have call successors, (477) [2024-11-11 22:56:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 3761 transitions. [2024-11-11 22:56:39,106 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 3761 transitions. Word has length 65 [2024-11-11 22:56:39,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:39,107 INFO L471 AbstractCegarLoop]: Abstraction has 2869 states and 3761 transitions. [2024-11-11 22:56:39,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:39,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 3761 transitions. [2024-11-11 22:56:39,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:56:39,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:39,109 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:39,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:56:39,109 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:39,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:39,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1385300724, now seen corresponding path program 1 times [2024-11-11 22:56:39,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:39,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953156140] [2024-11-11 22:56:39,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:39,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:39,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:39,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953156140] [2024-11-11 22:56:39,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953156140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:39,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:39,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:39,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228652589] [2024-11-11 22:56:39,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:39,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:39,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:39,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:39,207 INFO L87 Difference]: Start difference. First operand 2869 states and 3761 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:40,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:40,153 INFO L93 Difference]: Finished difference Result 7723 states and 10087 transitions. [2024-11-11 22:56:40,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:40,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-11 22:56:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:40,185 INFO L225 Difference]: With dead ends: 7723 [2024-11-11 22:56:40,185 INFO L226 Difference]: Without dead ends: 5124 [2024-11-11 22:56:40,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:56:40,195 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 875 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:40,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1093 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states. [2024-11-11 22:56:40,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 4567. [2024-11-11 22:56:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4567 states, 3588 states have (on average 1.2890189520624302) internal successors, (4625), 3635 states have internal predecessors, (4625), 492 states have call successors, (492), 407 states have call predecessors, (492), 485 states have return successors, (803), 528 states have call predecessors, (803), 488 states have call successors, (803) [2024-11-11 22:56:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5920 transitions. [2024-11-11 22:56:40,635 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5920 transitions. Word has length 66 [2024-11-11 22:56:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:40,635 INFO L471 AbstractCegarLoop]: Abstraction has 4567 states and 5920 transitions. [2024-11-11 22:56:40,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5920 transitions. [2024-11-11 22:56:40,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-11 22:56:40,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:40,637 INFO L218 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] [2024-11-11 22:56:40,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:56:40,637 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:40,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:40,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1900419470, now seen corresponding path program 1 times [2024-11-11 22:56:40,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:40,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015073628] [2024-11-11 22:56:40,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:40,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:56:40,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:40,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015073628] [2024-11-11 22:56:40,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015073628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:40,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:40,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:40,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226329447] [2024-11-11 22:56:40,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:40,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:40,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:40,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:40,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:40,715 INFO L87 Difference]: Start difference. First operand 4567 states and 5920 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:41,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:41,515 INFO L93 Difference]: Finished difference Result 6642 states and 8502 transitions. [2024-11-11 22:56:41,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:56:41,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-11 22:56:41,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:41,543 INFO L225 Difference]: With dead ends: 6642 [2024-11-11 22:56:41,544 INFO L226 Difference]: Without dead ends: 3967 [2024-11-11 22:56:41,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:56:41,554 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 1284 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:41,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 847 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2024-11-11 22:56:41,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3592. [2024-11-11 22:56:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 2827 states have (on average 1.2741422002122391) internal successors, (3602), 2866 states have internal predecessors, (3602), 394 states have call successors, (394), 325 states have call predecessors, (394), 369 states have return successors, (570), 404 states have call predecessors, (570), 390 states have call successors, (570) [2024-11-11 22:56:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 4566 transitions. [2024-11-11 22:56:41,884 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 4566 transitions. Word has length 73 [2024-11-11 22:56:41,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:41,885 INFO L471 AbstractCegarLoop]: Abstraction has 3592 states and 4566 transitions. [2024-11-11 22:56:41,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 4566 transitions. [2024-11-11 22:56:41,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-11 22:56:41,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:41,888 INFO L218 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] [2024-11-11 22:56:41,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:56:41,889 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:41,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:41,889 INFO L85 PathProgramCache]: Analyzing trace with hash 442179811, now seen corresponding path program 1 times [2024-11-11 22:56:41,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:41,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837223008] [2024-11-11 22:56:41,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:41,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:41,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:41,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837223008] [2024-11-11 22:56:41,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837223008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:41,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:41,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:41,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251590188] [2024-11-11 22:56:41,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:41,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:41,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:41,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:41,986 INFO L87 Difference]: Start difference. First operand 3592 states and 4566 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:56:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:42,869 INFO L93 Difference]: Finished difference Result 5145 states and 6464 transitions. [2024-11-11 22:56:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:56:42,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-11 22:56:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:42,895 INFO L225 Difference]: With dead ends: 5145 [2024-11-11 22:56:42,895 INFO L226 Difference]: Without dead ends: 5142 [2024-11-11 22:56:42,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:56:42,897 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 1791 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:42,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 855 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:42,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2024-11-11 22:56:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 4648. [2024-11-11 22:56:43,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4648 states, 3632 states have (on average 1.2599118942731278) internal successors, (4576), 3680 states have internal predecessors, (4576), 520 states have call successors, (520), 439 states have call predecessors, (520), 494 states have return successors, (763), 532 states have call predecessors, (763), 517 states have call successors, (763) [2024-11-11 22:56:43,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 5859 transitions. [2024-11-11 22:56:43,357 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 5859 transitions. Word has length 73 [2024-11-11 22:56:43,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:43,357 INFO L471 AbstractCegarLoop]: Abstraction has 4648 states and 5859 transitions. [2024-11-11 22:56:43,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:56:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 5859 transitions. [2024-11-11 22:56:43,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-11 22:56:43,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:43,360 INFO L218 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] [2024-11-11 22:56:43,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:56:43,361 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:43,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash 821569909, now seen corresponding path program 1 times [2024-11-11 22:56:43,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:43,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711471616] [2024-11-11 22:56:43,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:43,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:43,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711471616] [2024-11-11 22:56:43,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711471616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:43,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563529580] [2024-11-11 22:56:43,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:43,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:43,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:43,533 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) [2024-11-11 22:56:43,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:56:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:43,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 22:56:43,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:43,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:56:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:44,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563529580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:56:44,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:56:44,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-11 22:56:44,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658455561] [2024-11-11 22:56:44,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:56:44,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 22:56:44,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:44,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 22:56:44,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:56:44,049 INFO L87 Difference]: Start difference. First operand 4648 states and 5859 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-11 22:56:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:46,409 INFO L93 Difference]: Finished difference Result 10930 states and 13573 transitions. [2024-11-11 22:56:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 22:56:46,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-11 22:56:46,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:46,462 INFO L225 Difference]: With dead ends: 10930 [2024-11-11 22:56:46,462 INFO L226 Difference]: Without dead ends: 10927 [2024-11-11 22:56:46,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-11 22:56:46,468 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 2131 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:46,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 1974 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:56:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10927 states. [2024-11-11 22:56:47,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10927 to 8720. [2024-11-11 22:56:47,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8720 states, 6802 states have (on average 1.2491914142899148) internal successors, (8497), 6892 states have internal predecessors, (8497), 964 states have call successors, (964), 826 states have call predecessors, (964), 952 states have return successors, (1432), 1005 states have call predecessors, (1432), 961 states have call successors, (1432) [2024-11-11 22:56:47,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8720 states to 8720 states and 10893 transitions. [2024-11-11 22:56:47,413 INFO L78 Accepts]: Start accepts. Automaton has 8720 states and 10893 transitions. Word has length 74 [2024-11-11 22:56:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:47,414 INFO L471 AbstractCegarLoop]: Abstraction has 8720 states and 10893 transitions. [2024-11-11 22:56:47,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-11 22:56:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 8720 states and 10893 transitions. [2024-11-11 22:56:47,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:56:47,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:47,418 INFO L218 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] [2024-11-11 22:56:47,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 22:56:47,618 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 [2024-11-11 22:56:47,618 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:47,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:47,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1372581859, now seen corresponding path program 2 times [2024-11-11 22:56:47,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:47,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348436400] [2024-11-11 22:56:47,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:47,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:47,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:47,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348436400] [2024-11-11 22:56:47,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348436400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:47,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:47,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:47,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897065234] [2024-11-11 22:56:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:47,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:47,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:47,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:47,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:47,692 INFO L87 Difference]: Start difference. First operand 8720 states and 10893 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:56:49,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:49,071 INFO L93 Difference]: Finished difference Result 13460 states and 16801 transitions. [2024-11-11 22:56:49,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:56:49,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-11 22:56:49,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:49,096 INFO L225 Difference]: With dead ends: 13460 [2024-11-11 22:56:49,097 INFO L226 Difference]: Without dead ends: 5471 [2024-11-11 22:56:49,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:56:49,119 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 943 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:49,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1199 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:56:49,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-11-11 22:56:49,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 4598. [2024-11-11 22:56:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4598 states, 3622 states have (on average 1.2313638873550525) internal successors, (4460), 3666 states have internal predecessors, (4460), 498 states have call successors, (498), 416 states have call predecessors, (498), 476 states have return successors, (692), 519 states have call predecessors, (692), 495 states have call successors, (692) [2024-11-11 22:56:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4598 states to 4598 states and 5650 transitions. [2024-11-11 22:56:49,529 INFO L78 Accepts]: Start accepts. Automaton has 4598 states and 5650 transitions. Word has length 77 [2024-11-11 22:56:49,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:49,529 INFO L471 AbstractCegarLoop]: Abstraction has 4598 states and 5650 transitions. [2024-11-11 22:56:49,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:56:49,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4598 states and 5650 transitions. [2024-11-11 22:56:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-11 22:56:49,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:49,533 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:49,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:56:49,533 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:49,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:49,534 INFO L85 PathProgramCache]: Analyzing trace with hash -365873625, now seen corresponding path program 1 times [2024-11-11 22:56:49,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:49,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138787530] [2024-11-11 22:56:49,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:49,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:56:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 22:56:49,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:49,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138787530] [2024-11-11 22:56:49,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138787530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:49,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:49,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326203168] [2024-11-11 22:56:49,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:49,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:49,656 INFO L87 Difference]: Start difference. First operand 4598 states and 5650 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:56:51,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:51,369 INFO L93 Difference]: Finished difference Result 13292 states and 16249 transitions. [2024-11-11 22:56:51,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-11 22:56:51,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-11 22:56:51,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:51,404 INFO L225 Difference]: With dead ends: 13292 [2024-11-11 22:56:51,404 INFO L226 Difference]: Without dead ends: 8978 [2024-11-11 22:56:51,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-11 22:56:51,418 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 1143 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:51,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 1445 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8978 states. [2024-11-11 22:56:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8978 to 8404. [2024-11-11 22:56:52,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8404 states, 6476 states have (on average 1.2053736874613958) internal successors, (7806), 6638 states have internal predecessors, (7806), 946 states have call successors, (946), 794 states have call predecessors, (946), 980 states have return successors, (1517), 978 states have call predecessors, (1517), 943 states have call successors, (1517) [2024-11-11 22:56:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 10269 transitions. [2024-11-11 22:56:52,244 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 10269 transitions. Word has length 84 [2024-11-11 22:56:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:52,244 INFO L471 AbstractCegarLoop]: Abstraction has 8404 states and 10269 transitions. [2024-11-11 22:56:52,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:56:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 10269 transitions. [2024-11-11 22:56:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 22:56:52,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:52,250 INFO L218 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] [2024-11-11 22:56:52,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:56:52,250 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:52,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:52,251 INFO L85 PathProgramCache]: Analyzing trace with hash -122478559, now seen corresponding path program 1 times [2024-11-11 22:56:52,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:52,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445237075] [2024-11-11 22:56:52,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:52,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 22:56:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 22:56:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:52,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445237075] [2024-11-11 22:56:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445237075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:52,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:52,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924101850] [2024-11-11 22:56:52,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:52,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:52,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:52,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:52,381 INFO L87 Difference]: Start difference. First operand 8404 states and 10269 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:56:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:54,696 INFO L93 Difference]: Finished difference Result 14837 states and 18055 transitions. [2024-11-11 22:56:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-11 22:56:54,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-11 22:56:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:54,734 INFO L225 Difference]: With dead ends: 14837 [2024-11-11 22:56:54,734 INFO L226 Difference]: Without dead ends: 7559 [2024-11-11 22:56:54,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-11 22:56:54,755 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 1645 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:54,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 1996 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:56:54,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7559 states. [2024-11-11 22:56:55,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7559 to 7003. [2024-11-11 22:56:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 5416 states have (on average 1.1992245199409157) internal successors, (6495), 5550 states have internal predecessors, (6495), 776 states have call successors, (776), 649 states have call predecessors, (776), 809 states have return successors, (1158), 810 states have call predecessors, (1158), 773 states have call successors, (1158) [2024-11-11 22:56:55,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 8429 transitions. [2024-11-11 22:56:55,507 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 8429 transitions. Word has length 93 [2024-11-11 22:56:55,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:55,508 INFO L471 AbstractCegarLoop]: Abstraction has 7003 states and 8429 transitions. [2024-11-11 22:56:55,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:56:55,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 8429 transitions. [2024-11-11 22:56:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:56:55,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:55,517 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:55,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:56:55,517 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:55,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:55,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1286752545, now seen corresponding path program 1 times [2024-11-11 22:56:55,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:55,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891623175] [2024-11-11 22:56:55,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:55,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:56:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:56:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:56:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:55,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:55,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891623175] [2024-11-11 22:56:55,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891623175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:55,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:55,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:56:55,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240864260] [2024-11-11 22:56:55,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:55,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:56:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:55,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:56:55,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:56:55,644 INFO L87 Difference]: Start difference. First operand 7003 states and 8429 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:57,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:57,937 INFO L93 Difference]: Finished difference Result 7348 states and 8975 transitions. [2024-11-11 22:56:57,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:56:57,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:56:57,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:57,965 INFO L225 Difference]: With dead ends: 7348 [2024-11-11 22:56:57,965 INFO L226 Difference]: Without dead ends: 7090 [2024-11-11 22:56:57,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:57,971 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 780 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:57,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 785 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:56:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2024-11-11 22:56:59,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7003. [2024-11-11 22:56:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 5416 states have (on average 1.1990398818316101) internal successors, (6494), 5550 states have internal predecessors, (6494), 776 states have call successors, (776), 649 states have call predecessors, (776), 809 states have return successors, (1158), 810 states have call predecessors, (1158), 773 states have call successors, (1158) [2024-11-11 22:56:59,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 8428 transitions. [2024-11-11 22:56:59,091 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 8428 transitions. Word has length 124 [2024-11-11 22:56:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:59,092 INFO L471 AbstractCegarLoop]: Abstraction has 7003 states and 8428 transitions. [2024-11-11 22:56:59,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 8428 transitions. [2024-11-11 22:56:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:56:59,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:59,099 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:59,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:56:59,100 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:59,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:59,100 INFO L85 PathProgramCache]: Analyzing trace with hash -440392417, now seen corresponding path program 1 times [2024-11-11 22:56:59,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:59,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923787974] [2024-11-11 22:56:59,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:59,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:59,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:59,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:59,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:56:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:59,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:56:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:59,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:56:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:59,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:59,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923787974] [2024-11-11 22:56:59,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923787974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:59,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:59,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:59,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404699888] [2024-11-11 22:56:59,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:59,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:59,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:59,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:59,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:59,259 INFO L87 Difference]: Start difference. First operand 7003 states and 8428 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:02,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:02,280 INFO L93 Difference]: Finished difference Result 7689 states and 9515 transitions. [2024-11-11 22:57:02,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:57:02,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:02,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:02,302 INFO L225 Difference]: With dead ends: 7689 [2024-11-11 22:57:02,303 INFO L226 Difference]: Without dead ends: 7437 [2024-11-11 22:57:02,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:57:02,305 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 1231 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:02,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1244 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:57:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7437 states. [2024-11-11 22:57:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7437 to 7262. [2024-11-11 22:57:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7262 states, 5652 states have (on average 1.2142604387827318) internal successors, (6863), 5787 states have internal predecessors, (6863), 792 states have call successors, (792), 655 states have call predecessors, (792), 816 states have return successors, (1177), 826 states have call predecessors, (1177), 789 states have call successors, (1177) [2024-11-11 22:57:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 8832 transitions. [2024-11-11 22:57:03,430 INFO L78 Accepts]: Start accepts. Automaton has 7262 states and 8832 transitions. Word has length 124 [2024-11-11 22:57:03,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:03,431 INFO L471 AbstractCegarLoop]: Abstraction has 7262 states and 8832 transitions. [2024-11-11 22:57:03,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:03,431 INFO L276 IsEmpty]: Start isEmpty. Operand 7262 states and 8832 transitions. [2024-11-11 22:57:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:03,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:03,439 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:03,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:57:03,439 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:03,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1458040805, now seen corresponding path program 1 times [2024-11-11 22:57:03,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:03,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114158429] [2024-11-11 22:57:03,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:03,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:03,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:03,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:03,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:03,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:03,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:03,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:03,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:03,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114158429] [2024-11-11 22:57:03,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114158429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:03,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:03,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:03,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531278027] [2024-11-11 22:57:03,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:03,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:03,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:03,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:03,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:03,658 INFO L87 Difference]: Start difference. First operand 7262 states and 8832 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:06,608 INFO L93 Difference]: Finished difference Result 8303 states and 10480 transitions. [2024-11-11 22:57:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:57:06,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:06,633 INFO L225 Difference]: With dead ends: 8303 [2024-11-11 22:57:06,634 INFO L226 Difference]: Without dead ends: 7792 [2024-11-11 22:57:06,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:57:06,640 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 1305 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:06,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1486 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 22:57:06,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2024-11-11 22:57:08,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7504. [2024-11-11 22:57:08,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 5871 states have (on average 1.2260262306251064) internal successors, (7198), 6007 states have internal predecessors, (7198), 808 states have call successors, (808), 661 states have call predecessors, (808), 823 states have return successors, (1195), 843 states have call predecessors, (1195), 805 states have call successors, (1195) [2024-11-11 22:57:08,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 9201 transitions. [2024-11-11 22:57:08,056 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 9201 transitions. Word has length 124 [2024-11-11 22:57:08,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:08,056 INFO L471 AbstractCegarLoop]: Abstraction has 7504 states and 9201 transitions. [2024-11-11 22:57:08,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 9201 transitions. [2024-11-11 22:57:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:08,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:08,065 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:08,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:57:08,066 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:08,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:08,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1339599331, now seen corresponding path program 1 times [2024-11-11 22:57:08,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:08,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224248663] [2024-11-11 22:57:08,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:08,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:08,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:08,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:08,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:08,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:08,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:08,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:08,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224248663] [2024-11-11 22:57:08,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224248663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:08,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:08,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968778345] [2024-11-11 22:57:08,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:08,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:08,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:08,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:08,295 INFO L87 Difference]: Start difference. First operand 7504 states and 9201 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:11,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:11,386 INFO L93 Difference]: Finished difference Result 9208 states and 11893 transitions. [2024-11-11 22:57:11,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:57:11,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:11,412 INFO L225 Difference]: With dead ends: 9208 [2024-11-11 22:57:11,413 INFO L226 Difference]: Without dead ends: 8455 [2024-11-11 22:57:11,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:57:11,419 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 1248 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:11,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 2065 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 22:57:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8455 states. [2024-11-11 22:57:12,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8455 to 7989. [2024-11-11 22:57:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7989 states, 6310 states have (on average 1.247068145800317) internal successors, (7869), 6448 states have internal predecessors, (7869), 840 states have call successors, (840), 673 states have call predecessors, (840), 837 states have return successors, (1235), 877 states have call predecessors, (1235), 837 states have call successors, (1235) [2024-11-11 22:57:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7989 states to 7989 states and 9944 transitions. [2024-11-11 22:57:12,575 INFO L78 Accepts]: Start accepts. Automaton has 7989 states and 9944 transitions. Word has length 124 [2024-11-11 22:57:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:12,575 INFO L471 AbstractCegarLoop]: Abstraction has 7989 states and 9944 transitions. [2024-11-11 22:57:12,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 7989 states and 9944 transitions. [2024-11-11 22:57:12,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:12,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:12,583 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:12,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:57:12,584 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:12,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:12,584 INFO L85 PathProgramCache]: Analyzing trace with hash 49694683, now seen corresponding path program 1 times [2024-11-11 22:57:12,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:12,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181937625] [2024-11-11 22:57:12,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:12,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:12,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:12,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:12,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:12,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:12,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:12,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181937625] [2024-11-11 22:57:12,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181937625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:12,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:12,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:12,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501933088] [2024-11-11 22:57:12,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:12,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:12,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:12,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:12,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:12,767 INFO L87 Difference]: Start difference. First operand 7989 states and 9944 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:15,860 INFO L93 Difference]: Finished difference Result 10953 states and 14604 transitions. [2024-11-11 22:57:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:57:15,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:15,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:15,888 INFO L225 Difference]: With dead ends: 10953 [2024-11-11 22:57:15,888 INFO L226 Difference]: Without dead ends: 9715 [2024-11-11 22:57:15,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:57:15,895 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 1246 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:15,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 2065 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 22:57:15,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9715 states. [2024-11-11 22:57:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9715 to 8960. [2024-11-11 22:57:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.2812630407567116) internal successors, (9211), 7331 states have internal predecessors, (9211), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-11 22:57:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11436 transitions. [2024-11-11 22:57:17,225 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11436 transitions. Word has length 124 [2024-11-11 22:57:17,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:17,226 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11436 transitions. [2024-11-11 22:57:17,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11436 transitions. [2024-11-11 22:57:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:17,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:17,234 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:17,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 22:57:17,235 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:17,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1983699363, now seen corresponding path program 1 times [2024-11-11 22:57:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:17,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547942459] [2024-11-11 22:57:17,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:17,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:17,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:17,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:17,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:17,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:17,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:17,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547942459] [2024-11-11 22:57:17,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547942459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:17,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:17,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:17,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401736147] [2024-11-11 22:57:17,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:17,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:17,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:17,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:17,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:17,420 INFO L87 Difference]: Start difference. First operand 8960 states and 11436 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:19,587 INFO L93 Difference]: Finished difference Result 11927 states and 16129 transitions. [2024-11-11 22:57:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:57:19,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:19,613 INFO L225 Difference]: With dead ends: 11927 [2024-11-11 22:57:19,613 INFO L226 Difference]: Without dead ends: 9718 [2024-11-11 22:57:19,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:57:19,621 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 1134 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:19,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 969 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:57:19,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9718 states. [2024-11-11 22:57:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9718 to 8960. [2024-11-11 22:57:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.280011128112394) internal successors, (9202), 7331 states have internal predecessors, (9202), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-11 22:57:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11427 transitions. [2024-11-11 22:57:20,785 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11427 transitions. Word has length 124 [2024-11-11 22:57:20,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:20,785 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11427 transitions. [2024-11-11 22:57:20,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:20,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11427 transitions. [2024-11-11 22:57:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:20,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:20,793 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:20,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 22:57:20,793 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:20,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:20,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1004125535, now seen corresponding path program 1 times [2024-11-11 22:57:20,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:20,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636329905] [2024-11-11 22:57:20,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:20,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:20,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:20,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:20,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:20,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:20,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:20,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:20,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636329905] [2024-11-11 22:57:20,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636329905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:20,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:20,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:20,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954518566] [2024-11-11 22:57:20,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:20,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:20,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:20,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:20,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:20,955 INFO L87 Difference]: Start difference. First operand 8960 states and 11427 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:22,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:22,940 INFO L93 Difference]: Finished difference Result 11917 states and 16082 transitions. [2024-11-11 22:57:22,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:57:22,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:22,970 INFO L225 Difference]: With dead ends: 11917 [2024-11-11 22:57:22,970 INFO L226 Difference]: Without dead ends: 9708 [2024-11-11 22:57:22,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:57:22,977 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 1132 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:22,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 969 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:57:22,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9708 states. [2024-11-11 22:57:24,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9708 to 8960. [2024-11-11 22:57:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.2787592154680762) internal successors, (9193), 7331 states have internal predecessors, (9193), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-11 22:57:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11418 transitions. [2024-11-11 22:57:24,173 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11418 transitions. Word has length 124 [2024-11-11 22:57:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:24,174 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11418 transitions. [2024-11-11 22:57:24,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11418 transitions. [2024-11-11 22:57:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:24,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:24,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:24,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 22:57:24,181 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:24,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1393344995, now seen corresponding path program 1 times [2024-11-11 22:57:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821419367] [2024-11-11 22:57:24,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:24,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:24,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:24,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:24,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:24,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:24,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:24,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:24,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821419367] [2024-11-11 22:57:24,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821419367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:24,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:24,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:24,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345294238] [2024-11-11 22:57:24,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:24,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:24,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:24,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:24,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:24,350 INFO L87 Difference]: Start difference. First operand 8960 states and 11418 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:26,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:26,348 INFO L93 Difference]: Finished difference Result 11907 states and 16035 transitions. [2024-11-11 22:57:26,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:57:26,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:26,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:26,369 INFO L225 Difference]: With dead ends: 11907 [2024-11-11 22:57:26,370 INFO L226 Difference]: Without dead ends: 9698 [2024-11-11 22:57:26,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:57:26,375 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 1130 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:26,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 969 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:57:26,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9698 states. [2024-11-11 22:57:27,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9698 to 8960. [2024-11-11 22:57:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8960 states, 7189 states have (on average 1.2775073028237585) internal successors, (9184), 7331 states have internal predecessors, (9184), 904 states have call successors, (904), 697 states have call predecessors, (904), 865 states have return successors, (1321), 945 states have call predecessors, (1321), 901 states have call successors, (1321) [2024-11-11 22:57:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 11409 transitions. [2024-11-11 22:57:27,498 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 11409 transitions. Word has length 124 [2024-11-11 22:57:27,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:27,499 INFO L471 AbstractCegarLoop]: Abstraction has 8960 states and 11409 transitions. [2024-11-11 22:57:27,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 11409 transitions. [2024-11-11 22:57:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:27,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:27,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:27,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 22:57:27,507 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:27,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash -362304097, now seen corresponding path program 1 times [2024-11-11 22:57:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:27,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917408560] [2024-11-11 22:57:27,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:27,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:27,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:27,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:27,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:27,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:27,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:27,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:27,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917408560] [2024-11-11 22:57:27,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917408560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:27,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:27,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:27,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569198240] [2024-11-11 22:57:27,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:27,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:27,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:27,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:27,714 INFO L87 Difference]: Start difference. First operand 8960 states and 11409 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:31,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:31,279 INFO L93 Difference]: Finished difference Result 15261 states and 21136 transitions. [2024-11-11 22:57:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:57:31,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:31,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:31,307 INFO L225 Difference]: With dead ends: 15261 [2024-11-11 22:57:31,307 INFO L226 Difference]: Without dead ends: 13052 [2024-11-11 22:57:31,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:57:31,314 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 1294 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 2853 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:31,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 2055 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2853 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:57:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13052 states. [2024-11-11 22:57:32,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13052 to 10919. [2024-11-11 22:57:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 8972 states have (on average 1.3243423985733394) internal successors, (11882), 9122 states have internal predecessors, (11882), 1024 states have call successors, (1024), 745 states have call predecessors, (1024), 921 states have return successors, (1503), 1073 states have call predecessors, (1503), 1021 states have call successors, (1503) [2024-11-11 22:57:32,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 14409 transitions. [2024-11-11 22:57:32,559 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 14409 transitions. Word has length 124 [2024-11-11 22:57:32,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:32,559 INFO L471 AbstractCegarLoop]: Abstraction has 10919 states and 14409 transitions. [2024-11-11 22:57:32,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 14409 transitions. [2024-11-11 22:57:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 22:57:32,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:32,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:32,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 22:57:32,566 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:32,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2026259933, now seen corresponding path program 1 times [2024-11-11 22:57:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302069720] [2024-11-11 22:57:32,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:32,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:32,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:32,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 22:57:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:32,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:57:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:32,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 22:57:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:32,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:32,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302069720] [2024-11-11 22:57:32,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302069720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:32,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:32,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:32,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206746670] [2024-11-11 22:57:32,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:32,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:32,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:32,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:32,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:32,753 INFO L87 Difference]: Start difference. First operand 10919 states and 14409 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:36,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:36,245 INFO L93 Difference]: Finished difference Result 22838 states and 32838 transitions. [2024-11-11 22:57:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:57:36,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-11 22:57:36,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:36,285 INFO L225 Difference]: With dead ends: 22838 [2024-11-11 22:57:36,285 INFO L226 Difference]: Without dead ends: 18670 [2024-11-11 22:57:36,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:57:36,295 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 1537 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:36,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 1464 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 22:57:36,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18670 states.