./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cb37d56f61ec273f723a733aad4526e011a3841f34b26767a03fdc541dd1ee3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:05:54,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:05:54,863 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:05:54,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:05:54,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:05:54,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:05:54,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:05:54,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:05:54,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:05:54,907 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:05:54,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:05:54,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:05:54,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:05:54,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:05:54,909 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:05:54,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:05:54,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:05:54,912 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:05:54,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:05:54,914 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:05:54,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:05:54,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:05:54,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:05:54,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:05:54,916 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:05:54,916 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:05:54,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:05:54,917 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:05:54,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:05:54,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:05:54,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:05:54,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:05:54,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:05:54,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:05:54,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:05:54,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:05:54,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:05:54,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:05:54,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:05:54,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:05:54,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:05:54,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:05:54,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cb37d56f61ec273f723a733aad4526e011a3841f34b26767a03fdc541dd1ee3 [2024-11-22 04:05:55,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:05:55,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:05:55,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:05:55,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:05:55,277 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:05:55,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2024-11-22 04:05:56,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:05:56,933 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:05:56,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2024-11-22 04:05:56,949 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e1eac79f/e67cedfb0ba848a28940c1a7d09f6766/FLAG9bf46a924 [2024-11-22 04:05:56,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e1eac79f/e67cedfb0ba848a28940c1a7d09f6766 [2024-11-22 04:05:56,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:05:56,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:05:56,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:05:56,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:05:56,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:05:56,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:05:56" (1/1) ... [2024-11-22 04:05:56,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a3ebe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:56, skipping insertion in model container [2024-11-22 04:05:56,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:05:56" (1/1) ... [2024-11-22 04:05:57,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:05:57,223 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.09.cil-1.c[914,927] [2024-11-22 04:05:57,303 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.09.cil-1.c[7115,7128] [2024-11-22 04:05:57,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:05:57,444 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:05:57,460 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.09.cil-1.c[914,927] [2024-11-22 04:05:57,488 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.09.cil-1.c[7115,7128] [2024-11-22 04:05:57,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:05:57,578 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:05:57,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57 WrapperNode [2024-11-22 04:05:57,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:05:57,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:05:57,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:05:57,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:05:57,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,715 INFO L138 Inliner]: procedures = 71, calls = 84, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 888 [2024-11-22 04:05:57,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:05:57,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:05:57,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:05:57,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:05:57,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,811 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 04:05:57,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:05:57,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:05:57,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:05:57,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:05:57,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (1/1) ... [2024-11-22 04:05:57,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:05:57,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:57,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 04:05:57,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 04:05:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:05:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:05:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:05:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-22 04:05:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-22 04:05:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:05:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:05:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:05:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:05:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-22 04:05:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-22 04:05:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:05:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:05:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:05:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:05:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-22 04:05:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-22 04:05:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-22 04:05:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-22 04:05:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-22 04:05:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-22 04:05:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:05:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:05:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:05:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:05:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:05:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-22 04:05:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-22 04:05:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:05:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:05:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:05:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:05:58,115 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:05:58,118 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:05:58,978 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2024-11-22 04:05:58,979 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:05:59,009 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:05:59,009 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-22 04:05:59,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:05:59 BoogieIcfgContainer [2024-11-22 04:05:59,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:05:59,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:05:59,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:05:59,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:05:59,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:05:56" (1/3) ... [2024-11-22 04:05:59,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7737587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:05:59, skipping insertion in model container [2024-11-22 04:05:59,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:57" (2/3) ... [2024-11-22 04:05:59,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7737587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:05:59, skipping insertion in model container [2024-11-22 04:05:59,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:05:59" (3/3) ... [2024-11-22 04:05:59,019 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2024-11-22 04:05:59,036 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:05:59,037 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:05:59,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:05:59,168 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;@fa56ccb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:05:59,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:05:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 418 states, 364 states have (on average 1.60989010989011) internal successors, (586), 370 states have internal predecessors, (586), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-22 04:05:59,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:05:59,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:59,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:59,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:59,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:59,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1377141975, now seen corresponding path program 1 times [2024-11-22 04:05:59,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:59,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601091552] [2024-11-22 04:05:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:59,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:05:59,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601091552] [2024-11-22 04:05:59,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601091552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:59,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:59,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:59,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765827432] [2024-11-22 04:05:59,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:59,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:59,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:59,792 INFO L87 Difference]: Start difference. First operand has 418 states, 364 states have (on average 1.60989010989011) internal successors, (586), 370 states have internal predecessors, (586), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:00,756 INFO L93 Difference]: Finished difference Result 914 states and 1438 transitions. [2024-11-22 04:06:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:00,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:00,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:00,781 INFO L225 Difference]: With dead ends: 914 [2024-11-22 04:06:00,781 INFO L226 Difference]: Without dead ends: 511 [2024-11-22 04:06:00,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:00,789 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 420 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:00,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1339 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 04:06:00,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-22 04:06:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 504. [2024-11-22 04:06:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 432 states have (on average 1.4976851851851851) internal successors, (647), 438 states have internal predecessors, (647), 48 states have call successors, (48), 21 states have call predecessors, (48), 22 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2024-11-22 04:06:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 746 transitions. [2024-11-22 04:06:00,902 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 746 transitions. Word has length 65 [2024-11-22 04:06:00,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:00,903 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 746 transitions. [2024-11-22 04:06:00,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:00,907 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 746 transitions. [2024-11-22 04:06:00,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:00,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:00,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:00,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:06:00,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:00,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:00,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1780927926, now seen corresponding path program 1 times [2024-11-22 04:06:00,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:00,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003617144] [2024-11-22 04:06:00,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:00,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:01,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:01,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003617144] [2024-11-22 04:06:01,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003617144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:01,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:01,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:01,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994272993] [2024-11-22 04:06:01,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:01,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:01,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:01,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:01,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:01,163 INFO L87 Difference]: Start difference. First operand 504 states and 746 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:02,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:02,040 INFO L93 Difference]: Finished difference Result 821 states and 1177 transitions. [2024-11-22 04:06:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:02,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:02,046 INFO L225 Difference]: With dead ends: 821 [2024-11-22 04:06:02,046 INFO L226 Difference]: Without dead ends: 644 [2024-11-22 04:06:02,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:02,048 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 895 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:02,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1537 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 04:06:02,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-22 04:06:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 600. [2024-11-22 04:06:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 508 states have (on average 1.4783464566929134) internal successors, (751), 516 states have internal predecessors, (751), 59 states have call successors, (59), 28 states have call predecessors, (59), 31 states have return successors, (70), 59 states have call predecessors, (70), 57 states have call successors, (70) [2024-11-22 04:06:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 880 transitions. [2024-11-22 04:06:02,135 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 880 transitions. Word has length 65 [2024-11-22 04:06:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:02,135 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 880 transitions. [2024-11-22 04:06:02,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 880 transitions. [2024-11-22 04:06:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:02,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:02,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:02,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:06:02,139 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:02,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:02,140 INFO L85 PathProgramCache]: Analyzing trace with hash -247658184, now seen corresponding path program 1 times [2024-11-22 04:06:02,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:02,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374889332] [2024-11-22 04:06:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:02,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:02,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:02,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374889332] [2024-11-22 04:06:02,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374889332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:02,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:02,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:02,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279357765] [2024-11-22 04:06:02,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:02,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:02,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:02,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:02,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:02,233 INFO L87 Difference]: Start difference. First operand 600 states and 880 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:02,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:02,284 INFO L93 Difference]: Finished difference Result 872 states and 1253 transitions. [2024-11-22 04:06:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:02,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:06:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:02,289 INFO L225 Difference]: With dead ends: 872 [2024-11-22 04:06:02,289 INFO L226 Difference]: Without dead ends: 605 [2024-11-22 04:06:02,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:02,291 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 0 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:02,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-22 04:06:02,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-22 04:06:02,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 512 states have (on average 1.470703125) internal successors, (753), 520 states have internal predecessors, (753), 59 states have call successors, (59), 28 states have call predecessors, (59), 32 states have return successors, (71), 60 states have call predecessors, (71), 57 states have call successors, (71) [2024-11-22 04:06:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 883 transitions. [2024-11-22 04:06:02,328 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 883 transitions. Word has length 65 [2024-11-22 04:06:02,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:02,329 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 883 transitions. [2024-11-22 04:06:02,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 883 transitions. [2024-11-22 04:06:02,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:02,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:02,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:02,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:06:02,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:02,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1277017482, now seen corresponding path program 1 times [2024-11-22 04:06:02,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:02,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184363473] [2024-11-22 04:06:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:02,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:02,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:02,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184363473] [2024-11-22 04:06:02,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184363473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:02,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:02,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:02,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773489670] [2024-11-22 04:06:02,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:02,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:02,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:02,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:02,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:02,445 INFO L87 Difference]: Start difference. First operand 605 states and 883 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:02,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:02,506 INFO L93 Difference]: Finished difference Result 892 states and 1271 transitions. [2024-11-22 04:06:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:02,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:06:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:02,512 INFO L225 Difference]: With dead ends: 892 [2024-11-22 04:06:02,512 INFO L226 Difference]: Without dead ends: 620 [2024-11-22 04:06:02,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:02,514 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 0 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:02,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-22 04:06:02,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2024-11-22 04:06:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 524 states have (on average 1.4599236641221374) internal successors, (765), 532 states have internal predecessors, (765), 59 states have call successors, (59), 28 states have call predecessors, (59), 35 states have return successors, (74), 63 states have call predecessors, (74), 57 states have call successors, (74) [2024-11-22 04:06:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 898 transitions. [2024-11-22 04:06:02,558 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 898 transitions. Word has length 65 [2024-11-22 04:06:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:02,558 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 898 transitions. [2024-11-22 04:06:02,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 898 transitions. [2024-11-22 04:06:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:02,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:02,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:02,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:06:02,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:02,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:02,563 INFO L85 PathProgramCache]: Analyzing trace with hash 109185912, now seen corresponding path program 1 times [2024-11-22 04:06:02,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:02,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979999197] [2024-11-22 04:06:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:02,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:02,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:02,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979999197] [2024-11-22 04:06:02,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979999197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:02,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:02,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:02,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625183069] [2024-11-22 04:06:02,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:02,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:02,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:02,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:02,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:02,735 INFO L87 Difference]: Start difference. First operand 620 states and 898 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:03,622 INFO L93 Difference]: Finished difference Result 991 states and 1379 transitions. [2024-11-22 04:06:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 04:06:03,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:03,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:03,628 INFO L225 Difference]: With dead ends: 991 [2024-11-22 04:06:03,628 INFO L226 Difference]: Without dead ends: 706 [2024-11-22 04:06:03,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:06:03,631 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 892 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:03,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1370 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 04:06:03,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-22 04:06:03,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 632. [2024-11-22 04:06:03,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 534 states have (on average 1.451310861423221) internal successors, (775), 542 states have internal predecessors, (775), 60 states have call successors, (60), 29 states have call predecessors, (60), 36 states have return successors, (73), 64 states have call predecessors, (73), 58 states have call successors, (73) [2024-11-22 04:06:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 908 transitions. [2024-11-22 04:06:03,671 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 908 transitions. Word has length 65 [2024-11-22 04:06:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:03,672 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 908 transitions. [2024-11-22 04:06:03,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 908 transitions. [2024-11-22 04:06:03,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:03,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:03,676 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:03,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:06:03,677 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:03,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:03,677 INFO L85 PathProgramCache]: Analyzing trace with hash -24827594, now seen corresponding path program 1 times [2024-11-22 04:06:03,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:03,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882077354] [2024-11-22 04:06:03,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:03,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:03,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:03,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882077354] [2024-11-22 04:06:03,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882077354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:03,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:03,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:06:03,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204671342] [2024-11-22 04:06:03,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:03,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:06:03,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:03,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:06:03,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:06:03,745 INFO L87 Difference]: Start difference. First operand 632 states and 908 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:04,290 INFO L93 Difference]: Finished difference Result 1222 states and 1684 transitions. [2024-11-22 04:06:04,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:06:04,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:04,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:04,298 INFO L225 Difference]: With dead ends: 1222 [2024-11-22 04:06:04,299 INFO L226 Difference]: Without dead ends: 926 [2024-11-22 04:06:04,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:04,302 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 851 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:04,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 682 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:06:04,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-22 04:06:04,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 922. [2024-11-22 04:06:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 758 states have (on average 1.4010554089709764) internal successors, (1062), 773 states have internal predecessors, (1062), 95 states have call successors, (95), 51 states have call predecessors, (95), 67 states have return successors, (130), 104 states have call predecessors, (130), 93 states have call successors, (130) [2024-11-22 04:06:04,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1287 transitions. [2024-11-22 04:06:04,362 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1287 transitions. Word has length 65 [2024-11-22 04:06:04,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:04,363 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1287 transitions. [2024-11-22 04:06:04,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:04,363 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1287 transitions. [2024-11-22 04:06:04,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:06:04,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:04,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:04,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:06:04,366 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:04,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:04,367 INFO L85 PathProgramCache]: Analyzing trace with hash -86912797, now seen corresponding path program 1 times [2024-11-22 04:06:04,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:04,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65933930] [2024-11-22 04:06:04,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:04,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:04,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:04,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65933930] [2024-11-22 04:06:04,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65933930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:04,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:04,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:04,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959971267] [2024-11-22 04:06:04,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:04,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:04,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:04,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:04,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:04,408 INFO L87 Difference]: Start difference. First operand 922 states and 1287 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:04,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:04,497 INFO L93 Difference]: Finished difference Result 2033 states and 2746 transitions. [2024-11-22 04:06:04,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:04,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-22 04:06:04,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:04,508 INFO L225 Difference]: With dead ends: 2033 [2024-11-22 04:06:04,508 INFO L226 Difference]: Without dead ends: 1426 [2024-11-22 04:06:04,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:04,512 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 103 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:04,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1189 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:04,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-11-22 04:06:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1403. [2024-11-22 04:06:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1137 states have (on average 1.357080035180299) internal successors, (1543), 1155 states have internal predecessors, (1543), 140 states have call successors, (140), 95 states have call predecessors, (140), 124 states have return successors, (202), 159 states have call predecessors, (202), 138 states have call successors, (202) [2024-11-22 04:06:04,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1885 transitions. [2024-11-22 04:06:04,603 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1885 transitions. Word has length 66 [2024-11-22 04:06:04,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:04,604 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1885 transitions. [2024-11-22 04:06:04,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:04,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1885 transitions. [2024-11-22 04:06:04,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:06:04,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:04,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:04,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:06:04,607 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:04,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:04,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1371326862, now seen corresponding path program 1 times [2024-11-22 04:06:04,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:04,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426064920] [2024-11-22 04:06:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:04,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:04,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426064920] [2024-11-22 04:06:04,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426064920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:04,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:04,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:04,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989821033] [2024-11-22 04:06:04,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:04,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:04,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:04,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:04,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:04,673 INFO L87 Difference]: Start difference. First operand 1403 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:04,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:04,809 INFO L93 Difference]: Finished difference Result 3431 states and 4502 transitions. [2024-11-22 04:06:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:04,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-22 04:06:04,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:04,824 INFO L225 Difference]: With dead ends: 3431 [2024-11-22 04:06:04,824 INFO L226 Difference]: Without dead ends: 2363 [2024-11-22 04:06:04,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:04,830 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 583 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:04,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 720 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:04,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2024-11-22 04:06:04,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2265. [2024-11-22 04:06:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1803 states have (on average 1.3144758735440931) internal successors, (2370), 1831 states have internal predecessors, (2370), 238 states have call successors, (238), 179 states have call predecessors, (238), 222 states have return successors, (338), 261 states have call predecessors, (338), 236 states have call successors, (338) [2024-11-22 04:06:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2946 transitions. [2024-11-22 04:06:05,010 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2946 transitions. Word has length 66 [2024-11-22 04:06:05,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:05,010 INFO L471 AbstractCegarLoop]: Abstraction has 2265 states and 2946 transitions. [2024-11-22 04:06:05,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2946 transitions. [2024-11-22 04:06:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 04:06:05,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:05,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:05,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:06:05,014 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:05,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1950224446, now seen corresponding path program 1 times [2024-11-22 04:06:05,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:05,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381239512] [2024-11-22 04:06:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:05,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:05,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:05,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381239512] [2024-11-22 04:06:05,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381239512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:05,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:05,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:05,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256926626] [2024-11-22 04:06:05,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:05,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:05,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:05,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:05,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:05,058 INFO L87 Difference]: Start difference. First operand 2265 states and 2946 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:05,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:05,218 INFO L93 Difference]: Finished difference Result 4967 states and 6360 transitions. [2024-11-22 04:06:05,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:05,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-22 04:06:05,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:05,237 INFO L225 Difference]: With dead ends: 4967 [2024-11-22 04:06:05,237 INFO L226 Difference]: Without dead ends: 3037 [2024-11-22 04:06:05,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:05,245 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 583 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:05,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 735 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:05,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2024-11-22 04:06:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2997. [2024-11-22 04:06:05,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2371 states have (on average 1.2964993673555463) internal successors, (3074), 2407 states have internal predecessors, (3074), 318 states have call successors, (318), 249 states have call predecessors, (318), 306 states have return successors, (447), 347 states have call predecessors, (447), 316 states have call successors, (447) [2024-11-22 04:06:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 3839 transitions. [2024-11-22 04:06:05,440 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 3839 transitions. Word has length 72 [2024-11-22 04:06:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:05,442 INFO L471 AbstractCegarLoop]: Abstraction has 2997 states and 3839 transitions. [2024-11-22 04:06:05,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 3839 transitions. [2024-11-22 04:06:05,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 04:06:05,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:05,444 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:05,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:06:05,445 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:05,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash -844134956, now seen corresponding path program 1 times [2024-11-22 04:06:05,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:05,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355168402] [2024-11-22 04:06:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:05,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:05,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:05,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355168402] [2024-11-22 04:06:05,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355168402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:05,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:05,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:06:05,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991917863] [2024-11-22 04:06:05,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:05,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:06:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:05,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:06:05,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:06:05,545 INFO L87 Difference]: Start difference. First operand 2997 states and 3839 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:05,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:05,930 INFO L93 Difference]: Finished difference Result 3528 states and 4494 transitions. [2024-11-22 04:06:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:05,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-22 04:06:05,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:05,952 INFO L225 Difference]: With dead ends: 3528 [2024-11-22 04:06:05,953 INFO L226 Difference]: Without dead ends: 3525 [2024-11-22 04:06:05,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:05,955 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 1147 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:05,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 714 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:06:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3525 states. [2024-11-22 04:06:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3525 to 3491. [2024-11-22 04:06:06,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 2756 states have (on average 1.2866473149492017) internal successors, (3546), 2797 states have internal predecessors, (3546), 368 states have call successors, (368), 293 states have call predecessors, (368), 365 states have return successors, (526), 407 states have call predecessors, (526), 367 states have call successors, (526) [2024-11-22 04:06:06,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4440 transitions. [2024-11-22 04:06:06,206 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4440 transitions. Word has length 73 [2024-11-22 04:06:06,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:06,207 INFO L471 AbstractCegarLoop]: Abstraction has 3491 states and 4440 transitions. [2024-11-22 04:06:06,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:06,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4440 transitions. [2024-11-22 04:06:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 04:06:06,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:06,211 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:06,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:06:06,212 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:06,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:06,212 INFO L85 PathProgramCache]: Analyzing trace with hash -399603124, now seen corresponding path program 1 times [2024-11-22 04:06:06,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:06,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259216901] [2024-11-22 04:06:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:06,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:06,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:06,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259216901] [2024-11-22 04:06:06,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259216901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:06,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206901739] [2024-11-22 04:06:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:06,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:06,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:06,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:06:06,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:06:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:06,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:06:06,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:06,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:06,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:06:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:06,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206901739] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:06:06,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:06:06,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-22 04:06:06,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94422197] [2024-11-22 04:06:06,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:06:06,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:06:06,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:06,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:06:06,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:06:06,859 INFO L87 Difference]: Start difference. First operand 3491 states and 4440 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:06:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:07,771 INFO L93 Difference]: Finished difference Result 7372 states and 9294 transitions. [2024-11-22 04:06:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:06:07,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-22 04:06:07,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:07,811 INFO L225 Difference]: With dead ends: 7372 [2024-11-22 04:06:07,811 INFO L226 Difference]: Without dead ends: 7369 [2024-11-22 04:06:07,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:06:07,816 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 1400 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:07,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 2951 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:07,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7369 states. [2024-11-22 04:06:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7369 to 5281. [2024-11-22 04:06:08,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 4160 states have (on average 1.279326923076923) internal successors, (5322), 4223 states have internal predecessors, (5322), 552 states have call successors, (552), 451 states have call predecessors, (552), 567 states have return successors, (804), 613 states have call predecessors, (804), 551 states have call successors, (804) [2024-11-22 04:06:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 6678 transitions. [2024-11-22 04:06:08,392 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 6678 transitions. Word has length 74 [2024-11-22 04:06:08,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:08,393 INFO L471 AbstractCegarLoop]: Abstraction has 5281 states and 6678 transitions. [2024-11-22 04:06:08,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:06:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 6678 transitions. [2024-11-22 04:06:08,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 04:06:08,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:08,398 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:08,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:06:08,598 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,SelfDestructingSolverStorable10 [2024-11-22 04:06:08,599 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:08,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:08,599 INFO L85 PathProgramCache]: Analyzing trace with hash -340320684, now seen corresponding path program 2 times [2024-11-22 04:06:08,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:08,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843908083] [2024-11-22 04:06:08,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:06:08,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:08,617 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 04:06:08,617 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:06:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:08,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:08,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843908083] [2024-11-22 04:06:08,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843908083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:08,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:08,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:08,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619190817] [2024-11-22 04:06:08,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:08,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:08,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:08,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:08,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:08,645 INFO L87 Difference]: Start difference. First operand 5281 states and 6678 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:08,922 INFO L93 Difference]: Finished difference Result 7748 states and 9807 transitions. [2024-11-22 04:06:08,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:08,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-22 04:06:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:08,947 INFO L225 Difference]: With dead ends: 7748 [2024-11-22 04:06:08,948 INFO L226 Difference]: Without dead ends: 3673 [2024-11-22 04:06:08,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:08,960 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 582 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:08,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 815 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:08,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3673 states. [2024-11-22 04:06:09,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3673 to 3653. [2024-11-22 04:06:09,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3653 states, 2888 states have (on average 1.268005540166205) internal successors, (3662), 2929 states have internal predecessors, (3662), 384 states have call successors, (384), 307 states have call predecessors, (384), 379 states have return successors, (530), 423 states have call predecessors, (530), 383 states have call successors, (530) [2024-11-22 04:06:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3653 states to 3653 states and 4576 transitions. [2024-11-22 04:06:09,278 INFO L78 Accepts]: Start accepts. Automaton has 3653 states and 4576 transitions. Word has length 77 [2024-11-22 04:06:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:09,278 INFO L471 AbstractCegarLoop]: Abstraction has 3653 states and 4576 transitions. [2024-11-22 04:06:09,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 4576 transitions. [2024-11-22 04:06:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 04:06:09,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:09,282 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:09,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:06:09,283 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:09,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:09,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1727990114, now seen corresponding path program 1 times [2024-11-22 04:06:09,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:09,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727869779] [2024-11-22 04:06:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 04:06:09,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727869779] [2024-11-22 04:06:09,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727869779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:09,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:09,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:09,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644209877] [2024-11-22 04:06:09,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:09,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:09,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:09,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:09,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:09,395 INFO L87 Difference]: Start difference. First operand 3653 states and 4576 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:11,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:11,051 INFO L93 Difference]: Finished difference Result 10505 states and 12973 transitions. [2024-11-22 04:06:11,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 04:06:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-22 04:06:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:11,104 INFO L225 Difference]: With dead ends: 10505 [2024-11-22 04:06:11,104 INFO L226 Difference]: Without dead ends: 5882 [2024-11-22 04:06:11,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-22 04:06:11,120 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 707 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:11,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1765 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 04:06:11,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2024-11-22 04:06:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 5625. [2024-11-22 04:06:11,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5625 states, 4408 states have (on average 1.2377495462794919) internal successors, (5456), 4485 states have internal predecessors, (5456), 593 states have call successors, (593), 489 states have call predecessors, (593), 622 states have return successors, (886), 657 states have call predecessors, (886), 592 states have call successors, (886) [2024-11-22 04:06:11,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5625 states to 5625 states and 6935 transitions. [2024-11-22 04:06:11,685 INFO L78 Accepts]: Start accepts. Automaton has 5625 states and 6935 transitions. Word has length 84 [2024-11-22 04:06:11,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:11,685 INFO L471 AbstractCegarLoop]: Abstraction has 5625 states and 6935 transitions. [2024-11-22 04:06:11,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5625 states and 6935 transitions. [2024-11-22 04:06:11,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 04:06:11,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:11,691 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:11,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:06:11,691 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:11,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:11,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2143413234, now seen corresponding path program 1 times [2024-11-22 04:06:11,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:11,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185598272] [2024-11-22 04:06:11,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:11,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 04:06:11,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:11,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185598272] [2024-11-22 04:06:11,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185598272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:11,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:11,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:06:11,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229793241] [2024-11-22 04:06:11,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:11,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:06:11,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:11,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:06:11,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:06:11,812 INFO L87 Difference]: Start difference. First operand 5625 states and 6935 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:13,388 INFO L93 Difference]: Finished difference Result 9649 states and 11818 transitions. [2024-11-22 04:06:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 04:06:13,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-22 04:06:13,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:13,423 INFO L225 Difference]: With dead ends: 9649 [2024-11-22 04:06:13,424 INFO L226 Difference]: Without dead ends: 5005 [2024-11-22 04:06:13,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:06:13,436 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 1494 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:13,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 1843 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 04:06:13,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2024-11-22 04:06:13,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 4724. [2024-11-22 04:06:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4724 states, 3713 states have (on average 1.2318879612173446) internal successors, (4574), 3773 states have internal predecessors, (4574), 497 states have call successors, (497), 404 states have call predecessors, (497), 512 states have return successors, (674), 553 states have call predecessors, (674), 496 states have call successors, (674) [2024-11-22 04:06:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4724 states to 4724 states and 5745 transitions. [2024-11-22 04:06:13,862 INFO L78 Accepts]: Start accepts. Automaton has 4724 states and 5745 transitions. Word has length 93 [2024-11-22 04:06:13,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:13,862 INFO L471 AbstractCegarLoop]: Abstraction has 4724 states and 5745 transitions. [2024-11-22 04:06:13,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:13,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4724 states and 5745 transitions. [2024-11-22 04:06:13,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:13,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:13,872 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:13,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:06:13,872 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:13,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:13,873 INFO L85 PathProgramCache]: Analyzing trace with hash -524987056, now seen corresponding path program 1 times [2024-11-22 04:06:13,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:13,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605247724] [2024-11-22 04:06:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:13,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 04:06:14,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:14,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605247724] [2024-11-22 04:06:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605247724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:14,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268033891] [2024-11-22 04:06:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:14,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:14,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:14,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:06:14,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 04:06:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:14,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 04:06:14,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:14,218 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 04:06:14,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:06:14,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268033891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:14,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:06:14,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-22 04:06:14,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939245156] [2024-11-22 04:06:14,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:14,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:14,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:14,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:14,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:06:14,227 INFO L87 Difference]: Start difference. First operand 4724 states and 5745 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 04:06:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:14,419 INFO L93 Difference]: Finished difference Result 6773 states and 8198 transitions. [2024-11-22 04:06:14,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:14,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-22 04:06:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:14,441 INFO L225 Difference]: With dead ends: 6773 [2024-11-22 04:06:14,442 INFO L226 Difference]: Without dead ends: 2388 [2024-11-22 04:06:14,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:06:14,454 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 0 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:14,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3031 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:14,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2024-11-22 04:06:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2024-11-22 04:06:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 1956 states have (on average 1.2464212678936606) internal successors, (2438), 1971 states have internal predecessors, (2438), 213 states have call successors, (213), 162 states have call predecessors, (213), 217 states have return successors, (295), 255 states have call predecessors, (295), 212 states have call successors, (295) [2024-11-22 04:06:14,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 2946 transitions. [2024-11-22 04:06:14,678 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 2946 transitions. Word has length 145 [2024-11-22 04:06:14,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:14,679 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 2946 transitions. [2024-11-22 04:06:14,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 04:06:14,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 2946 transitions. [2024-11-22 04:06:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 04:06:14,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:14,687 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:14,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 04:06:14,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 04:06:14,891 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:14,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:14,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1151640180, now seen corresponding path program 1 times [2024-11-22 04:06:14,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:14,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344667418] [2024-11-22 04:06:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:14,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 04:06:14,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:14,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344667418] [2024-11-22 04:06:14,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344667418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:14,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:14,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978380966] [2024-11-22 04:06:14,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:14,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:14,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:14,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:14,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:14,956 INFO L87 Difference]: Start difference. First operand 2388 states and 2946 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:06:15,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:15,139 INFO L93 Difference]: Finished difference Result 2391 states and 2948 transitions. [2024-11-22 04:06:15,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:15,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2024-11-22 04:06:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:15,152 INFO L225 Difference]: With dead ends: 2391 [2024-11-22 04:06:15,152 INFO L226 Difference]: Without dead ends: 1944 [2024-11-22 04:06:15,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:15,155 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 123 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:15,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1091 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:15,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2024-11-22 04:06:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2024-11-22 04:06:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1608 states have (on average 1.2624378109452736) internal successors, (2030), 1620 states have internal predecessors, (2030), 167 states have call successors, (167), 122 states have call predecessors, (167), 167 states have return successors, (232), 202 states have call predecessors, (232), 166 states have call successors, (232) [2024-11-22 04:06:15,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2429 transitions. [2024-11-22 04:06:15,383 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2429 transitions. Word has length 147 [2024-11-22 04:06:15,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:15,383 INFO L471 AbstractCegarLoop]: Abstraction has 1944 states and 2429 transitions. [2024-11-22 04:06:15,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:06:15,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2429 transitions. [2024-11-22 04:06:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:15,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:15,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:15,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:06:15,390 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:15,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:15,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2014093114, now seen corresponding path program 1 times [2024-11-22 04:06:15,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:15,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782119431] [2024-11-22 04:06:15,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:15,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:15,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:15,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782119431] [2024-11-22 04:06:15,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782119431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:15,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:15,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:15,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860648025] [2024-11-22 04:06:15,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:15,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:15,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:15,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:15,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:15,469 INFO L87 Difference]: Start difference. First operand 1944 states and 2429 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:15,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:15,652 INFO L93 Difference]: Finished difference Result 2248 states and 2899 transitions. [2024-11-22 04:06:15,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:15,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:15,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:15,662 INFO L225 Difference]: With dead ends: 2248 [2024-11-22 04:06:15,663 INFO L226 Difference]: Without dead ends: 1944 [2024-11-22 04:06:15,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:15,665 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 474 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:15,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 736 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2024-11-22 04:06:15,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2024-11-22 04:06:15,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1608 states have (on average 1.26181592039801) internal successors, (2029), 1620 states have internal predecessors, (2029), 167 states have call successors, (167), 122 states have call predecessors, (167), 167 states have return successors, (232), 202 states have call predecessors, (232), 166 states have call successors, (232) [2024-11-22 04:06:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2428 transitions. [2024-11-22 04:06:15,870 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2428 transitions. Word has length 145 [2024-11-22 04:06:15,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:15,871 INFO L471 AbstractCegarLoop]: Abstraction has 1944 states and 2428 transitions. [2024-11-22 04:06:15,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2428 transitions. [2024-11-22 04:06:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:15,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:15,876 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:15,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:06:15,876 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:15,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:15,877 INFO L85 PathProgramCache]: Analyzing trace with hash 615139512, now seen corresponding path program 1 times [2024-11-22 04:06:15,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:15,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508840017] [2024-11-22 04:06:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:15,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:15,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:15,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508840017] [2024-11-22 04:06:15,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508840017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:15,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:15,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:15,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333484596] [2024-11-22 04:06:15,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:15,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:15,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:15,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:15,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:15,996 INFO L87 Difference]: Start difference. First operand 1944 states and 2428 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:16,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:16,714 INFO L93 Difference]: Finished difference Result 2570 states and 3408 transitions. [2024-11-22 04:06:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:16,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:16,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:16,726 INFO L225 Difference]: With dead ends: 2570 [2024-11-22 04:06:16,726 INFO L226 Difference]: Without dead ends: 2275 [2024-11-22 04:06:16,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:16,729 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1070 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:16,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1498 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2024-11-22 04:06:16,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2252. [2024-11-22 04:06:16,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 1891 states have (on average 1.3072448439978848) internal successors, (2472), 1904 states have internal predecessors, (2472), 185 states have call successors, (185), 128 states have call predecessors, (185), 174 states have return successors, (251), 220 states have call predecessors, (251), 184 states have call successors, (251) [2024-11-22 04:06:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 2908 transitions. [2024-11-22 04:06:16,908 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 2908 transitions. Word has length 145 [2024-11-22 04:06:16,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:16,909 INFO L471 AbstractCegarLoop]: Abstraction has 2252 states and 2908 transitions. [2024-11-22 04:06:16,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 2908 transitions. [2024-11-22 04:06:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:16,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:16,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:16,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:06:16,914 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:16,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:16,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1936824260, now seen corresponding path program 1 times [2024-11-22 04:06:16,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:16,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614649865] [2024-11-22 04:06:16,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:16,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:17,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:17,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614649865] [2024-11-22 04:06:17,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614649865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:17,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:17,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178325145] [2024-11-22 04:06:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:17,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:17,070 INFO L87 Difference]: Start difference. First operand 2252 states and 2908 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:17,974 INFO L93 Difference]: Finished difference Result 3245 states and 4477 transitions. [2024-11-22 04:06:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:17,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:17,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:17,986 INFO L225 Difference]: With dead ends: 3245 [2024-11-22 04:06:17,987 INFO L226 Difference]: Without dead ends: 2642 [2024-11-22 04:06:17,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:17,989 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 1097 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:17,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 2106 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2024-11-22 04:06:18,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2539. [2024-11-22 04:06:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2153 states have (on average 1.3344170924291685) internal successors, (2873), 2167 states have internal predecessors, (2873), 203 states have call successors, (203), 134 states have call predecessors, (203), 181 states have return successors, (272), 239 states have call predecessors, (272), 202 states have call successors, (272) [2024-11-22 04:06:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3348 transitions. [2024-11-22 04:06:18,161 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3348 transitions. Word has length 145 [2024-11-22 04:06:18,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:18,161 INFO L471 AbstractCegarLoop]: Abstraction has 2539 states and 3348 transitions. [2024-11-22 04:06:18,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:18,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3348 transitions. [2024-11-22 04:06:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:18,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:18,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:18,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:06:18,168 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:18,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:18,168 INFO L85 PathProgramCache]: Analyzing trace with hash -989786374, now seen corresponding path program 1 times [2024-11-22 04:06:18,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:18,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963753951] [2024-11-22 04:06:18,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:18,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:18,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:18,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963753951] [2024-11-22 04:06:18,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963753951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:18,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:18,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:18,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865466204] [2024-11-22 04:06:18,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:18,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:18,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:18,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:18,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:18,286 INFO L87 Difference]: Start difference. First operand 2539 states and 3348 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:19,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:19,138 INFO L93 Difference]: Finished difference Result 4158 states and 5900 transitions. [2024-11-22 04:06:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:19,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:19,153 INFO L225 Difference]: With dead ends: 4158 [2024-11-22 04:06:19,153 INFO L226 Difference]: Without dead ends: 3268 [2024-11-22 04:06:19,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:19,157 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 1069 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:19,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 2774 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2024-11-22 04:06:19,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 3150. [2024-11-22 04:06:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 2712 states have (on average 1.3797935103244838) internal successors, (3742), 2730 states have internal predecessors, (3742), 239 states have call successors, (239), 146 states have call predecessors, (239), 197 states have return successors, (320), 277 states have call predecessors, (320), 238 states have call successors, (320) [2024-11-22 04:06:19,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4301 transitions. [2024-11-22 04:06:19,365 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4301 transitions. Word has length 145 [2024-11-22 04:06:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:19,366 INFO L471 AbstractCegarLoop]: Abstraction has 3150 states and 4301 transitions. [2024-11-22 04:06:19,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4301 transitions. [2024-11-22 04:06:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:19,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:19,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:19,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:06:19,372 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:19,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:19,373 INFO L85 PathProgramCache]: Analyzing trace with hash -127952772, now seen corresponding path program 1 times [2024-11-22 04:06:19,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:19,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770010966] [2024-11-22 04:06:19,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:19,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:19,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:19,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770010966] [2024-11-22 04:06:19,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770010966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:19,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:19,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425989665] [2024-11-22 04:06:19,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:19,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:19,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:19,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:19,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:19,498 INFO L87 Difference]: Start difference. First operand 3150 states and 4301 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:20,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:20,428 INFO L93 Difference]: Finished difference Result 6127 states and 9035 transitions. [2024-11-22 04:06:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:20,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:20,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:20,446 INFO L225 Difference]: With dead ends: 6127 [2024-11-22 04:06:20,447 INFO L226 Difference]: Without dead ends: 4626 [2024-11-22 04:06:20,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:20,452 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1064 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:20,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 2762 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4626 states. [2024-11-22 04:06:20,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4626 to 4477. [2024-11-22 04:06:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 3929 states have (on average 1.4431152965131078) internal successors, (5670), 3961 states have internal predecessors, (5670), 311 states have call successors, (311), 170 states have call predecessors, (311), 235 states have return successors, (440), 353 states have call predecessors, (440), 310 states have call successors, (440) [2024-11-22 04:06:20,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 6421 transitions. [2024-11-22 04:06:20,739 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 6421 transitions. Word has length 145 [2024-11-22 04:06:20,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:20,740 INFO L471 AbstractCegarLoop]: Abstraction has 4477 states and 6421 transitions. [2024-11-22 04:06:20,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:20,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 6421 transitions. [2024-11-22 04:06:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:20,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:20,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:20,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:06:20,746 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:20,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:20,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2116605626, now seen corresponding path program 1 times [2024-11-22 04:06:20,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:20,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110026023] [2024-11-22 04:06:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:20,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:20,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110026023] [2024-11-22 04:06:20,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110026023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:20,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:20,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:20,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098680135] [2024-11-22 04:06:20,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:20,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:20,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:20,875 INFO L87 Difference]: Start difference. First operand 4477 states and 6421 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:21,901 INFO L93 Difference]: Finished difference Result 10466 states and 16149 transitions. [2024-11-22 04:06:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:21,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:21,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:21,933 INFO L225 Difference]: With dead ends: 10466 [2024-11-22 04:06:21,933 INFO L226 Difference]: Without dead ends: 7638 [2024-11-22 04:06:21,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:21,945 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1059 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:21,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 2750 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:21,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7638 states. [2024-11-22 04:06:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7638 to 7428. [2024-11-22 04:06:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 6642 states have (on average 1.5149051490514904) internal successors, (10062), 6720 states have internal predecessors, (10062), 455 states have call successors, (455), 218 states have call predecessors, (455), 329 states have return successors, (776), 505 states have call predecessors, (776), 454 states have call successors, (776) [2024-11-22 04:06:22,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 11293 transitions. [2024-11-22 04:06:22,623 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 11293 transitions. Word has length 145 [2024-11-22 04:06:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:22,623 INFO L471 AbstractCegarLoop]: Abstraction has 7428 states and 11293 transitions. [2024-11-22 04:06:22,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 11293 transitions. [2024-11-22 04:06:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:22,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:22,631 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:22,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:06:22,632 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:22,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:22,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1690314564, now seen corresponding path program 1 times [2024-11-22 04:06:22,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:22,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412823419] [2024-11-22 04:06:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:22,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:22,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:22,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412823419] [2024-11-22 04:06:22,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412823419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:22,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:22,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:22,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049957013] [2024-11-22 04:06:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:22,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:22,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:22,749 INFO L87 Difference]: Start difference. First operand 7428 states and 11293 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:23,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:23,619 INFO L93 Difference]: Finished difference Result 14535 states and 23310 transitions. [2024-11-22 04:06:23,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:23,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:23,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:23,654 INFO L225 Difference]: With dead ends: 14535 [2024-11-22 04:06:23,658 INFO L226 Difference]: Without dead ends: 8756 [2024-11-22 04:06:23,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:23,676 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 806 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:23,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1110 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:06:23,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2024-11-22 04:06:24,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 7428. [2024-11-22 04:06:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 6642 states have (on average 1.5123456790123457) internal successors, (10045), 6720 states have internal predecessors, (10045), 455 states have call successors, (455), 218 states have call predecessors, (455), 329 states have return successors, (776), 505 states have call predecessors, (776), 454 states have call successors, (776) [2024-11-22 04:06:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 11276 transitions. [2024-11-22 04:06:24,151 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 11276 transitions. Word has length 145 [2024-11-22 04:06:24,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:24,152 INFO L471 AbstractCegarLoop]: Abstraction has 7428 states and 11276 transitions. [2024-11-22 04:06:24,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 11276 transitions. [2024-11-22 04:06:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:24,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:24,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:24,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:06:24,161 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:24,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1512017530, now seen corresponding path program 1 times [2024-11-22 04:06:24,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:24,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836562943] [2024-11-22 04:06:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:24,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:24,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:24,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836562943] [2024-11-22 04:06:24,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836562943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:24,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:24,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16820424] [2024-11-22 04:06:24,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:24,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:24,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:24,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:24,262 INFO L87 Difference]: Start difference. First operand 7428 states and 11276 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:25,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:25,132 INFO L93 Difference]: Finished difference Result 14452 states and 23110 transitions. [2024-11-22 04:06:25,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:25,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:25,167 INFO L225 Difference]: With dead ends: 14452 [2024-11-22 04:06:25,167 INFO L226 Difference]: Without dead ends: 8673 [2024-11-22 04:06:25,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:25,184 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 803 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:25,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1102 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:06:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2024-11-22 04:06:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 7428. [2024-11-22 04:06:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 6642 states have (on average 1.5097862089732008) internal successors, (10028), 6720 states have internal predecessors, (10028), 455 states have call successors, (455), 218 states have call predecessors, (455), 329 states have return successors, (776), 505 states have call predecessors, (776), 454 states have call successors, (776) [2024-11-22 04:06:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 11259 transitions. [2024-11-22 04:06:25,689 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 11259 transitions. Word has length 145 [2024-11-22 04:06:25,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:25,690 INFO L471 AbstractCegarLoop]: Abstraction has 7428 states and 11259 transitions. [2024-11-22 04:06:25,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:25,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 11259 transitions. [2024-11-22 04:06:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:25,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:25,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:25,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:06:25,698 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:25,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:25,699 INFO L85 PathProgramCache]: Analyzing trace with hash 229845244, now seen corresponding path program 1 times [2024-11-22 04:06:25,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:25,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633693531] [2024-11-22 04:06:25,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:25,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:25,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633693531] [2024-11-22 04:06:25,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633693531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:25,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:25,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:25,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388901818] [2024-11-22 04:06:25,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:25,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:25,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:25,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:25,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:25,834 INFO L87 Difference]: Start difference. First operand 7428 states and 11259 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:27,010 INFO L93 Difference]: Finished difference Result 19973 states and 32185 transitions. [2024-11-22 04:06:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:27,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:27,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:27,069 INFO L225 Difference]: With dead ends: 19973 [2024-11-22 04:06:27,069 INFO L226 Difference]: Without dead ends: 14194 [2024-11-22 04:06:27,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:27,090 INFO L432 NwaCegarLoop]: 669 mSDtfsCounter, 1035 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:27,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 2686 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:27,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14194 states. [2024-11-22 04:06:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14194 to 13924. [2024-11-22 04:06:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13924 states, 12608 states have (on average 1.570272842639594) internal successors, (19798), 12832 states have internal predecessors, (19798), 743 states have call successors, (743), 314 states have call predecessors, (743), 571 states have return successors, (1832), 809 states have call predecessors, (1832), 742 states have call successors, (1832) [2024-11-22 04:06:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13924 states to 13924 states and 22373 transitions. [2024-11-22 04:06:28,151 INFO L78 Accepts]: Start accepts. Automaton has 13924 states and 22373 transitions. Word has length 145 [2024-11-22 04:06:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:28,151 INFO L471 AbstractCegarLoop]: Abstraction has 13924 states and 22373 transitions. [2024-11-22 04:06:28,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 13924 states and 22373 transitions. [2024-11-22 04:06:28,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:28,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:28,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:28,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:06:28,162 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:28,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:28,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1492157442, now seen corresponding path program 1 times [2024-11-22 04:06:28,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:28,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186938757] [2024-11-22 04:06:28,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:28,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:28,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:28,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186938757] [2024-11-22 04:06:28,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186938757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:28,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:28,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:28,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938924100] [2024-11-22 04:06:28,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:28,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:28,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:28,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:28,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:28,262 INFO L87 Difference]: Start difference. First operand 13924 states and 22373 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:29,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:29,449 INFO L93 Difference]: Finished difference Result 29139 states and 49008 transitions. [2024-11-22 04:06:29,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:29,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:29,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:29,523 INFO L225 Difference]: With dead ends: 29139 [2024-11-22 04:06:29,524 INFO L226 Difference]: Without dead ends: 16864 [2024-11-22 04:06:29,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:29,554 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 819 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:29,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1036 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:06:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2024-11-22 04:06:30,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 13924. [2024-11-22 04:06:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13924 states, 12608 states have (on average 1.5676554568527918) internal successors, (19765), 12832 states have internal predecessors, (19765), 743 states have call successors, (743), 314 states have call predecessors, (743), 571 states have return successors, (1832), 809 states have call predecessors, (1832), 742 states have call successors, (1832) [2024-11-22 04:06:30,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13924 states to 13924 states and 22340 transitions. [2024-11-22 04:06:30,510 INFO L78 Accepts]: Start accepts. Automaton has 13924 states and 22340 transitions. Word has length 145 [2024-11-22 04:06:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:30,510 INFO L471 AbstractCegarLoop]: Abstraction has 13924 states and 22340 transitions. [2024-11-22 04:06:30,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 13924 states and 22340 transitions. [2024-11-22 04:06:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:30,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:30,520 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:30,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 04:06:30,521 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:30,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:30,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1824800580, now seen corresponding path program 1 times [2024-11-22 04:06:30,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:30,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666154555] [2024-11-22 04:06:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:30,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:30,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:30,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666154555] [2024-11-22 04:06:30,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666154555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:30,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:30,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:30,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008843983] [2024-11-22 04:06:30,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:30,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:30,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:30,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:30,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:30,624 INFO L87 Difference]: Start difference. First operand 13924 states and 22340 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:32,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:32,486 INFO L93 Difference]: Finished difference Result 43395 states and 73307 transitions. [2024-11-22 04:06:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:32,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:32,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:32,626 INFO L225 Difference]: With dead ends: 43395 [2024-11-22 04:06:32,626 INFO L226 Difference]: Without dead ends: 31120 [2024-11-22 04:06:32,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:32,671 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 1115 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:32,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 2642 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 04:06:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31120 states. [2024-11-22 04:06:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31120 to 28440. [2024-11-22 04:06:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28440 states, 25934 states have (on average 1.6174519935220175) internal successors, (41947), 26612 states have internal predecessors, (41947), 1287 states have call successors, (1287), 506 states have call predecessors, (1287), 1217 states have return successors, (5448), 1385 states have call predecessors, (5448), 1286 states have call successors, (5448) [2024-11-22 04:06:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28440 states to 28440 states and 48682 transitions. [2024-11-22 04:06:34,691 INFO L78 Accepts]: Start accepts. Automaton has 28440 states and 48682 transitions. Word has length 145 [2024-11-22 04:06:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:34,691 INFO L471 AbstractCegarLoop]: Abstraction has 28440 states and 48682 transitions. [2024-11-22 04:06:34,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 28440 states and 48682 transitions. [2024-11-22 04:06:34,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:34,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:34,706 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:34,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 04:06:34,707 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:34,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:34,707 INFO L85 PathProgramCache]: Analyzing trace with hash 104131646, now seen corresponding path program 1 times [2024-11-22 04:06:34,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:34,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606060341] [2024-11-22 04:06:34,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:34,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:34,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:34,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606060341] [2024-11-22 04:06:34,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606060341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:34,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:34,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:34,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473732568] [2024-11-22 04:06:34,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:34,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:34,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:34,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:34,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:34,831 INFO L87 Difference]: Start difference. First operand 28440 states and 48682 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:37,933 INFO L93 Difference]: Finished difference Result 93509 states and 169383 transitions. [2024-11-22 04:06:37,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:37,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:38,297 INFO L225 Difference]: With dead ends: 93509 [2024-11-22 04:06:38,297 INFO L226 Difference]: Without dead ends: 66718 [2024-11-22 04:06:38,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:38,680 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 1270 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:38,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 2626 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66718 states. [2024-11-22 04:06:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66718 to 61673. [2024-11-22 04:06:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61673 states, 56333 states have (on average 1.6594003514813698) internal successors, (93479), 58405 states have internal predecessors, (93479), 2343 states have call successors, (2343), 890 states have call predecessors, (2343), 2995 states have return successors, (18792), 2505 states have call predecessors, (18792), 2342 states have call successors, (18792) [2024-11-22 04:06:43,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61673 states to 61673 states and 114614 transitions. [2024-11-22 04:06:43,184 INFO L78 Accepts]: Start accepts. Automaton has 61673 states and 114614 transitions. Word has length 145 [2024-11-22 04:06:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:43,184 INFO L471 AbstractCegarLoop]: Abstraction has 61673 states and 114614 transitions. [2024-11-22 04:06:43,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 61673 states and 114614 transitions. [2024-11-22 04:06:43,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:43,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:43,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:43,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 04:06:43,431 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:43,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:43,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2106017916, now seen corresponding path program 1 times [2024-11-22 04:06:43,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:43,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80797189] [2024-11-22 04:06:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:43,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:43,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80797189] [2024-11-22 04:06:43,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80797189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:43,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:43,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:43,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052596510] [2024-11-22 04:06:43,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:43,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:43,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:43,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:43,616 INFO L87 Difference]: Start difference. First operand 61673 states and 114614 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:51,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:51,821 INFO L93 Difference]: Finished difference Result 209182 states and 417825 transitions. [2024-11-22 04:06:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:51,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2024-11-22 04:06:51,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:52,647 INFO L225 Difference]: With dead ends: 209182 [2024-11-22 04:06:52,647 INFO L226 Difference]: Without dead ends: 149158 [2024-11-22 04:06:53,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:53,101 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 1085 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:53,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2618 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149158 states.