./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC --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 b28ed2134b8a500a12d5d4bc892752e1e825197b4bf6ff6b142642da12ed1a0e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:00:32,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:00:32,777 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:00:32,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:00:32,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:00:32,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:00:32,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:00:32,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:00:32,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:00:32,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:00:32,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:00:32,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:00:32,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:00:32,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:00:32,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:00:32,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:00:32,823 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:00:32,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:32,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:32,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:00:32,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:00:32,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:00:32,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:00:32,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:00:32,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:00:32,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:00:32,826 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC 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 -> b28ed2134b8a500a12d5d4bc892752e1e825197b4bf6ff6b142642da12ed1a0e [2024-11-23 23:00:33,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:00:33,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:00:33,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:00:33,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:00:33,158 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:00:33,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i [2024-11-23 23:00:36,048 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/data/98294af10/57b4327bc01e4e0a981b0ad94f80f9a5/FLAG6f2fe1677 [2024-11-23 23:00:36,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:00:36,287 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i [2024-11-23 23:00:36,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/data/98294af10/57b4327bc01e4e0a981b0ad94f80f9a5/FLAG6f2fe1677 [2024-11-23 23:00:36,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/data/98294af10/57b4327bc01e4e0a981b0ad94f80f9a5 [2024-11-23 23:00:36,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:00:36,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:00:36,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:00:36,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:00:36,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:00:36,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66035ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36, skipping insertion in model container [2024-11-23 23:00:36,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:00:36,525 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i[919,932] [2024-11-23 23:00:36,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:00:36,644 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:00:36,654 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i[919,932] [2024-11-23 23:00:36,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:00:36,736 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:00:36,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36 WrapperNode [2024-11-23 23:00:36,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:00:36,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:00:36,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:00:36,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:00:36,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,837 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249 [2024-11-23 23:00:36,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:00:36,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:00:36,842 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:00:36,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:00:36,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,867 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,903 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]. [2024-11-23 23:00:36,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,925 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:00:36,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:00:36,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:00:36,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:00:36,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (1/1) ... [2024-11-23 23:00:36,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:36,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:36,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:00:36,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:00:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:00:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:00:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:00:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:00:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:00:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:00:37,118 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:00:37,121 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:00:37,779 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-23 23:00:37,779 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:00:37,790 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:00:37,790 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:00:37,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:00:37 BoogieIcfgContainer [2024-11-23 23:00:37,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:00:37,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:00:37,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:00:37,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:00:37,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:00:36" (1/3) ... [2024-11-23 23:00:37,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e08b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:00:37, skipping insertion in model container [2024-11-23 23:00:37,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:36" (2/3) ... [2024-11-23 23:00:37,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e08b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:00:37, skipping insertion in model container [2024-11-23 23:00:37,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:00:37" (3/3) ... [2024-11-23 23:00:37,800 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i [2024-11-23 23:00:37,815 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:00:37,817 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i that has 2 procedures, 106 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:00:37,881 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:00:37,898 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;@37fc3454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:00:37,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:00:37,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 73 states have internal predecessors, (106), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-23 23:00:37,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:00:37,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:37,925 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:37,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:37,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:37,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1706633354, now seen corresponding path program 1 times [2024-11-23 23:00:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425853770] [2024-11-23 23:00:37,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:37,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-23 23:00:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425853770] [2024-11-23 23:00:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425853770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444981426] [2024-11-23 23:00:38,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:38,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:38,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:38,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:38,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:00:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:38,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:00:38,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-23 23:00:38,813 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:00:38,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444981426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:38,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:00:38,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:00:38,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466234357] [2024-11-23 23:00:38,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:38,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:00:38,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:38,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:00:38,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:00:38,884 INFO L87 Difference]: Start difference. First operand has 106 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 73 states have internal predecessors, (106), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:00:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:38,920 INFO L93 Difference]: Finished difference Result 204 states and 359 transitions. [2024-11-23 23:00:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:00:38,922 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 202 [2024-11-23 23:00:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:38,929 INFO L225 Difference]: With dead ends: 204 [2024-11-23 23:00:38,929 INFO L226 Difference]: Without dead ends: 101 [2024-11-23 23:00:38,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:00:38,936 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:38,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:38,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-23 23:00:38,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-23 23:00:38,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-23 23:00:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-11-23 23:00:38,985 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 202 [2024-11-23 23:00:38,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:38,985 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-11-23 23:00:38,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:00:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-11-23 23:00:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:00:38,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:38,989 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:39,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:00:39,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:00:39,190 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:39,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:39,191 INFO L85 PathProgramCache]: Analyzing trace with hash 4618240, now seen corresponding path program 1 times [2024-11-23 23:00:39,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:39,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566321394] [2024-11-23 23:00:39,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:39,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:00:40,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:40,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566321394] [2024-11-23 23:00:40,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566321394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:40,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:40,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:40,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666984385] [2024-11-23 23:00:40,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:40,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:00:40,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:40,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:00:40,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:40,905 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:00:41,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:41,342 INFO L93 Difference]: Finished difference Result 269 states and 421 transitions. [2024-11-23 23:00:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:41,343 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-23 23:00:41,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:41,346 INFO L225 Difference]: With dead ends: 269 [2024-11-23 23:00:41,346 INFO L226 Difference]: Without dead ends: 171 [2024-11-23 23:00:41,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:41,352 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 125 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:41,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 448 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:41,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-23 23:00:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 119. [2024-11-23 23:00:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 86 states have internal predecessors, (127), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-23 23:00:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 189 transitions. [2024-11-23 23:00:41,369 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 189 transitions. Word has length 202 [2024-11-23 23:00:41,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:41,371 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 189 transitions. [2024-11-23 23:00:41,371 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:00:41,371 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 189 transitions. [2024-11-23 23:00:41,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:00:41,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:41,375 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:41,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:00:41,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:41,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:41,376 INFO L85 PathProgramCache]: Analyzing trace with hash 684676610, now seen corresponding path program 1 times [2024-11-23 23:00:41,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:41,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931481402] [2024-11-23 23:00:41,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:41,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:01:04,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:04,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931481402] [2024-11-23 23:01:04,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931481402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:04,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:04,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 23:01:04,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828844943] [2024-11-23 23:01:04,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:04,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:01:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:04,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:01:04,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:01:04,189 INFO L87 Difference]: Start difference. First operand 119 states and 189 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:01:13,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:13,813 INFO L93 Difference]: Finished difference Result 531 states and 808 transitions. [2024-11-23 23:01:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 23:01:13,814 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 202 [2024-11-23 23:01:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:13,819 INFO L225 Difference]: With dead ends: 531 [2024-11-23 23:01:13,819 INFO L226 Difference]: Without dead ends: 415 [2024-11-23 23:01:13,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=353, Invalid=769, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 23:01:13,822 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 2308 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:13,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 546 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:01:13,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-23 23:01:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 167. [2024-11-23 23:01:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 133 states have (on average 1.5263157894736843) internal successors, (203), 133 states have internal predecessors, (203), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-23 23:01:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 265 transitions. [2024-11-23 23:01:13,862 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 265 transitions. Word has length 202 [2024-11-23 23:01:13,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:13,863 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 265 transitions. [2024-11-23 23:01:13,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:01:13,863 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 265 transitions. [2024-11-23 23:01:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:01:13,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:13,867 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:13,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:01:13,867 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:13,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:13,868 INFO L85 PathProgramCache]: Analyzing trace with hash -326440640, now seen corresponding path program 1 times [2024-11-23 23:01:13,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:13,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945436972] [2024-11-23 23:01:13,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:13,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:14,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:01:14,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:14,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945436972] [2024-11-23 23:01:14,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945436972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:14,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:14,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:01:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879308933] [2024-11-23 23:01:14,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:14,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:01:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:14,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:01:14,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:01:14,208 INFO L87 Difference]: Start difference. First operand 167 states and 265 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:01:14,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:14,321 INFO L93 Difference]: Finished difference Result 392 states and 621 transitions. [2024-11-23 23:01:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:01:14,323 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-23 23:01:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:14,326 INFO L225 Difference]: With dead ends: 392 [2024-11-23 23:01:14,326 INFO L226 Difference]: Without dead ends: 228 [2024-11-23 23:01:14,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:01:14,329 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 67 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:14,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 455 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:01:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-23 23:01:14,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 210. [2024-11-23 23:01:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.4853801169590644) internal successors, (254), 172 states have internal predecessors, (254), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-23 23:01:14,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 324 transitions. [2024-11-23 23:01:14,371 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 324 transitions. Word has length 202 [2024-11-23 23:01:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:14,373 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 324 transitions. [2024-11-23 23:01:14,373 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:01:14,373 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 324 transitions. [2024-11-23 23:01:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:01:14,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:14,379 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:14,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:01:14,379 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:14,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:14,380 INFO L85 PathProgramCache]: Analyzing trace with hash -903671292, now seen corresponding path program 1 times [2024-11-23 23:01:14,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:14,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284068351] [2024-11-23 23:01:14,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:14,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:01:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284068351] [2024-11-23 23:01:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284068351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:01:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217863604] [2024-11-23 23:01:28,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:28,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:01:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:28,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:01:28,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:01:28,164 INFO L87 Difference]: Start difference. First operand 210 states and 324 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:01:33,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:33,520 INFO L93 Difference]: Finished difference Result 601 states and 909 transitions. [2024-11-23 23:01:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:01:33,521 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 202 [2024-11-23 23:01:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:33,527 INFO L225 Difference]: With dead ends: 601 [2024-11-23 23:01:33,527 INFO L226 Difference]: Without dead ends: 394 [2024-11-23 23:01:33,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=214, Invalid=436, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:01:33,531 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 1505 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:33,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 480 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:01:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-23 23:01:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 210. [2024-11-23 23:01:33,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.4853801169590644) internal successors, (254), 172 states have internal predecessors, (254), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-23 23:01:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 324 transitions. [2024-11-23 23:01:33,564 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 324 transitions. Word has length 202 [2024-11-23 23:01:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:33,565 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 324 transitions. [2024-11-23 23:01:33,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:01:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 324 transitions. [2024-11-23 23:01:33,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:01:33,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:33,568 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:33,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:01:33,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:33,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1309468096, now seen corresponding path program 1 times [2024-11-23 23:01:33,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:33,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184818472] [2024-11-23 23:01:33,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:33,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:01:34,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:34,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184818472] [2024-11-23 23:01:34,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184818472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:34,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:34,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:01:34,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651369744] [2024-11-23 23:01:34,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:34,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:01:34,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:34,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:01:34,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:01:34,759 INFO L87 Difference]: Start difference. First operand 210 states and 324 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:01:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:35,752 INFO L93 Difference]: Finished difference Result 787 states and 1210 transitions. [2024-11-23 23:01:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:01:35,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-23 23:01:35,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:35,757 INFO L225 Difference]: With dead ends: 787 [2024-11-23 23:01:35,757 INFO L226 Difference]: Without dead ends: 580 [2024-11-23 23:01:35,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:01:35,758 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 360 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:35,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1215 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:01:35,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-23 23:01:35,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 318. [2024-11-23 23:01:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 246 states have (on average 1.475609756097561) internal successors, (363), 247 states have internal predecessors, (363), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:01:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 495 transitions. [2024-11-23 23:01:35,829 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 495 transitions. Word has length 202 [2024-11-23 23:01:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:35,834 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 495 transitions. [2024-11-23 23:01:35,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:01:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 495 transitions. [2024-11-23 23:01:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:01:35,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:35,836 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:35,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:01:35,837 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:35,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1502325060, now seen corresponding path program 1 times [2024-11-23 23:01:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:35,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019737134] [2024-11-23 23:01:35,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:35,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:01:49,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:49,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019737134] [2024-11-23 23:01:49,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019737134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:49,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:49,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:01:49,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569659243] [2024-11-23 23:01:49,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:49,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:01:49,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:49,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:01:49,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:01:49,711 INFO L87 Difference]: Start difference. First operand 318 states and 495 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:01:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:54,451 INFO L93 Difference]: Finished difference Result 823 states and 1256 transitions. [2024-11-23 23:01:54,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:01:54,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-23 23:01:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:54,457 INFO L225 Difference]: With dead ends: 823 [2024-11-23 23:01:54,457 INFO L226 Difference]: Without dead ends: 616 [2024-11-23 23:01:54,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:01:54,458 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 939 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:54,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 782 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:01:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-23 23:01:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 321. [2024-11-23 23:01:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 249 states have (on average 1.4779116465863453) internal successors, (368), 250 states have internal predecessors, (368), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:01:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 500 transitions. [2024-11-23 23:01:54,519 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 500 transitions. Word has length 202 [2024-11-23 23:01:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:54,519 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 500 transitions. [2024-11-23 23:01:54,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:01:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 500 transitions. [2024-11-23 23:01:54,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:01:54,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:54,523 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:54,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:01:54,524 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:54,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:54,525 INFO L85 PathProgramCache]: Analyzing trace with hash -86022842, now seen corresponding path program 1 times [2024-11-23 23:01:54,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:54,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433137193] [2024-11-23 23:01:54,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:54,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:02:03,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:03,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433137193] [2024-11-23 23:02:03,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433137193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:03,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:03,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:02:03,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945554169] [2024-11-23 23:02:03,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:03,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:02:03,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:03,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:02:03,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:02:03,858 INFO L87 Difference]: Start difference. First operand 321 states and 500 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:08,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:08,605 INFO L93 Difference]: Finished difference Result 839 states and 1261 transitions. [2024-11-23 23:02:08,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:02:08,606 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-23 23:02:08,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:08,609 INFO L225 Difference]: With dead ends: 839 [2024-11-23 23:02:08,609 INFO L226 Difference]: Without dead ends: 632 [2024-11-23 23:02:08,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:02:08,610 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 797 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:08,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 843 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 23:02:08,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-23 23:02:08,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 356. [2024-11-23 23:02:08,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 284 states have (on average 1.4753521126760563) internal successors, (419), 285 states have internal predecessors, (419), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:02:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 551 transitions. [2024-11-23 23:02:08,672 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 551 transitions. Word has length 202 [2024-11-23 23:02:08,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:08,673 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 551 transitions. [2024-11-23 23:02:08,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 551 transitions. [2024-11-23 23:02:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:02:08,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:08,676 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:08,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:02:08,676 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:08,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1107378436, now seen corresponding path program 1 times [2024-11-23 23:02:08,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:08,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133999024] [2024-11-23 23:02:08,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:08,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:02:09,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:09,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133999024] [2024-11-23 23:02:09,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133999024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:09,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:09,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:02:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543191909] [2024-11-23 23:02:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:09,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:02:09,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:09,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:02:09,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:02:09,466 INFO L87 Difference]: Start difference. First operand 356 states and 551 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:10,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:10,295 INFO L93 Difference]: Finished difference Result 787 states and 1216 transitions. [2024-11-23 23:02:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:02:10,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-23 23:02:10,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:10,298 INFO L225 Difference]: With dead ends: 787 [2024-11-23 23:02:10,299 INFO L226 Difference]: Without dead ends: 580 [2024-11-23 23:02:10,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:02:10,302 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 433 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:10,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 770 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:02:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-23 23:02:10,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 362. [2024-11-23 23:02:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 290 states have (on average 1.4793103448275862) internal successors, (429), 291 states have internal predecessors, (429), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:02:10,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 561 transitions. [2024-11-23 23:02:10,359 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 561 transitions. Word has length 202 [2024-11-23 23:02:10,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:10,360 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 561 transitions. [2024-11-23 23:02:10,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 561 transitions. [2024-11-23 23:02:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:02:10,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:10,362 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:10,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:02:10,362 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:10,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:10,363 INFO L85 PathProgramCache]: Analyzing trace with hash 334564308, now seen corresponding path program 1 times [2024-11-23 23:02:10,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:10,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448847321] [2024-11-23 23:02:10,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:10,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:02:26,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:26,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448847321] [2024-11-23 23:02:26,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448847321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:26,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:26,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:02:26,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477352902] [2024-11-23 23:02:26,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:26,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:02:26,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:26,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:02:26,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:02:26,971 INFO L87 Difference]: Start difference. First operand 362 states and 561 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:31,625 INFO L93 Difference]: Finished difference Result 796 states and 1218 transitions. [2024-11-23 23:02:31,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:02:31,626 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:02:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:31,630 INFO L225 Difference]: With dead ends: 796 [2024-11-23 23:02:31,630 INFO L226 Difference]: Without dead ends: 589 [2024-11-23 23:02:31,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:02:31,636 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 916 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:31,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 810 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 23:02:31,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-23 23:02:31,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 373. [2024-11-23 23:02:31,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 301 states have (on average 1.4817275747508305) internal successors, (446), 302 states have internal predecessors, (446), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:02:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 578 transitions. [2024-11-23 23:02:31,693 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 578 transitions. Word has length 203 [2024-11-23 23:02:31,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:31,694 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 578 transitions. [2024-11-23 23:02:31,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 578 transitions. [2024-11-23 23:02:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:02:31,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:31,711 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:31,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:02:31,711 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:31,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:31,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1659580398, now seen corresponding path program 1 times [2024-11-23 23:02:31,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:31,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000071046] [2024-11-23 23:02:31,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:31,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:02:47,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:47,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000071046] [2024-11-23 23:02:47,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000071046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:47,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:47,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:02:47,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642314234] [2024-11-23 23:02:47,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:47,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:02:47,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:47,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:02:47,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:02:47,450 INFO L87 Difference]: Start difference. First operand 373 states and 578 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:52,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:52,347 INFO L93 Difference]: Finished difference Result 772 states and 1186 transitions. [2024-11-23 23:02:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:02:52,349 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:02:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:52,351 INFO L225 Difference]: With dead ends: 772 [2024-11-23 23:02:52,352 INFO L226 Difference]: Without dead ends: 565 [2024-11-23 23:02:52,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:02:52,353 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 752 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:52,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 755 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 23:02:52,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-23 23:02:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 349. [2024-11-23 23:02:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.48014440433213) internal successors, (410), 278 states have internal predecessors, (410), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:02:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 542 transitions. [2024-11-23 23:02:52,404 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 542 transitions. Word has length 203 [2024-11-23 23:02:52,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:52,404 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 542 transitions. [2024-11-23 23:02:52,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 542 transitions. [2024-11-23 23:02:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:02:52,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:52,406 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:52,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:02:52,407 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:52,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:52,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1354379434, now seen corresponding path program 1 times [2024-11-23 23:02:52,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:52,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362229881] [2024-11-23 23:02:52,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:52,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:02:54,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:54,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362229881] [2024-11-23 23:02:54,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362229881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:54,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:54,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:02:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727585294] [2024-11-23 23:02:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:54,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:02:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:54,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:02:54,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:02:54,505 INFO L87 Difference]: Start difference. First operand 349 states and 542 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:56,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:56,018 INFO L93 Difference]: Finished difference Result 727 states and 1124 transitions. [2024-11-23 23:02:56,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:02:56,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:02:56,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:56,022 INFO L225 Difference]: With dead ends: 727 [2024-11-23 23:02:56,022 INFO L226 Difference]: Without dead ends: 508 [2024-11-23 23:02:56,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:02:56,024 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 311 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:56,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 666 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:02:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-23 23:02:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 349. [2024-11-23 23:02:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.4620938628158844) internal successors, (405), 278 states have internal predecessors, (405), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:02:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 537 transitions. [2024-11-23 23:02:56,079 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 537 transitions. Word has length 203 [2024-11-23 23:02:56,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:56,079 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 537 transitions. [2024-11-23 23:02:56,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:02:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 537 transitions. [2024-11-23 23:02:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:02:56,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:56,082 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:56,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:02:56,082 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:56,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash 553419026, now seen corresponding path program 1 times [2024-11-23 23:02:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671180343] [2024-11-23 23:02:56,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:03:06,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:06,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671180343] [2024-11-23 23:03:06,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671180343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:06,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:06,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:03:06,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475808429] [2024-11-23 23:03:06,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:06,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:03:06,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:06,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:03:06,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:06,078 INFO L87 Difference]: Start difference. First operand 349 states and 537 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:03:09,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:09,514 INFO L93 Difference]: Finished difference Result 726 states and 1104 transitions. [2024-11-23 23:03:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:03:09,515 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:03:09,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:09,517 INFO L225 Difference]: With dead ends: 726 [2024-11-23 23:03:09,517 INFO L226 Difference]: Without dead ends: 519 [2024-11-23 23:03:09,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:03:09,518 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 394 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:09,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 549 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:03:09,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-23 23:03:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 367. [2024-11-23 23:03:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 295 states have (on average 1.4610169491525424) internal successors, (431), 296 states have internal predecessors, (431), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:03:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 563 transitions. [2024-11-23 23:03:09,576 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 563 transitions. Word has length 203 [2024-11-23 23:03:09,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:09,576 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 563 transitions. [2024-11-23 23:03:09,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:03:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 563 transitions. [2024-11-23 23:03:09,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:03:09,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:09,578 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:09,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:03:09,579 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:03:09,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1440725680, now seen corresponding path program 1 times [2024-11-23 23:03:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:09,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469205861] [2024-11-23 23:03:09,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:09,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:03:25,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:25,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469205861] [2024-11-23 23:03:25,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469205861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:25,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:25,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:03:25,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290600377] [2024-11-23 23:03:25,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:25,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:03:25,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:25,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:03:25,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:03:25,752 INFO L87 Difference]: Start difference. First operand 367 states and 563 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:03:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:31,675 INFO L93 Difference]: Finished difference Result 841 states and 1273 transitions. [2024-11-23 23:03:31,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:03:31,676 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:03:31,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:31,678 INFO L225 Difference]: With dead ends: 841 [2024-11-23 23:03:31,678 INFO L226 Difference]: Without dead ends: 619 [2024-11-23 23:03:31,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2024-11-23 23:03:31,679 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 601 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:31,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 855 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-23 23:03:31,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-23 23:03:31,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 382. [2024-11-23 23:03:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 309 states have (on average 1.4563106796116505) internal successors, (450), 310 states have internal predecessors, (450), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:03:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 582 transitions. [2024-11-23 23:03:31,736 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 582 transitions. Word has length 203 [2024-11-23 23:03:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:31,737 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 582 transitions. [2024-11-23 23:03:31,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:03:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 582 transitions. [2024-11-23 23:03:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:03:31,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:31,739 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:31,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:03:31,739 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:03:31,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash -96606133, now seen corresponding path program 1 times [2024-11-23 23:03:31,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:31,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853667793] [2024-11-23 23:03:31,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:41,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:03:41,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:41,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853667793] [2024-11-23 23:03:41,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853667793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:41,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:41,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:03:41,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730127809] [2024-11-23 23:03:41,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:41,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:03:41,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:41,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:03:41,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:03:41,608 INFO L87 Difference]: Start difference. First operand 382 states and 582 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:03:45,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:45,321 INFO L93 Difference]: Finished difference Result 961 states and 1450 transitions. [2024-11-23 23:03:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:03:45,321 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:03:45,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:45,324 INFO L225 Difference]: With dead ends: 961 [2024-11-23 23:03:45,325 INFO L226 Difference]: Without dead ends: 739 [2024-11-23 23:03:45,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:03:45,326 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 742 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:45,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 724 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 23:03:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-23 23:03:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 394. [2024-11-23 23:03:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 321 states have (on average 1.4610591900311527) internal successors, (469), 322 states have internal predecessors, (469), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:03:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 601 transitions. [2024-11-23 23:03:45,394 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 601 transitions. Word has length 203 [2024-11-23 23:03:45,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:45,395 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 601 transitions. [2024-11-23 23:03:45,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:03:45,395 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 601 transitions. [2024-11-23 23:03:45,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:03:45,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:45,397 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:45,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:03:45,397 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:03:45,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1107723383, now seen corresponding path program 1 times [2024-11-23 23:03:45,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:45,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661196537] [2024-11-23 23:03:45,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:45,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:03:54,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:54,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661196537] [2024-11-23 23:03:54,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661196537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:54,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:54,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 23:03:54,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141400176] [2024-11-23 23:03:54,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:54,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:03:54,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:54,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:03:54,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:03:54,816 INFO L87 Difference]: Start difference. First operand 394 states and 601 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:03:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:59,712 INFO L93 Difference]: Finished difference Result 1100 states and 1671 transitions. [2024-11-23 23:03:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:03:59,713 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 203 [2024-11-23 23:03:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:59,716 INFO L225 Difference]: With dead ends: 1100 [2024-11-23 23:03:59,716 INFO L226 Difference]: Without dead ends: 866 [2024-11-23 23:03:59,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2024-11-23 23:03:59,718 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1570 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:59,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 730 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-23 23:03:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-23 23:03:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 430. [2024-11-23 23:03:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 357 states have (on average 1.4677871148459383) internal successors, (524), 358 states have internal predecessors, (524), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:03:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 656 transitions. [2024-11-23 23:03:59,782 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 656 transitions. Word has length 203 [2024-11-23 23:03:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:59,783 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 656 transitions. [2024-11-23 23:03:59,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:03:59,783 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 656 transitions. [2024-11-23 23:03:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:03:59,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:59,785 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:59,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:03:59,785 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:03:59,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1684954035, now seen corresponding path program 1 times [2024-11-23 23:03:59,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:59,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288490988] [2024-11-23 23:03:59,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:59,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:04:08,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:08,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288490988] [2024-11-23 23:04:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288490988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:08,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:08,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:04:08,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423427639] [2024-11-23 23:04:08,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:08,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:04:08,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:08,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:04:08,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:04:08,989 INFO L87 Difference]: Start difference. First operand 430 states and 656 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:14,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:14,392 INFO L93 Difference]: Finished difference Result 1117 states and 1683 transitions. [2024-11-23 23:04:14,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:04:14,393 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:04:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:14,397 INFO L225 Difference]: With dead ends: 1117 [2024-11-23 23:04:14,397 INFO L226 Difference]: Without dead ends: 849 [2024-11-23 23:04:14,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=277, Invalid=779, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 23:04:14,398 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1059 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:14,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 958 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 23:04:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-23 23:04:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 433. [2024-11-23 23:04:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 360 states have (on average 1.4722222222222223) internal successors, (530), 361 states have internal predecessors, (530), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:04:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 662 transitions. [2024-11-23 23:04:14,459 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 662 transitions. Word has length 203 [2024-11-23 23:04:14,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:14,459 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 662 transitions. [2024-11-23 23:04:14,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 662 transitions. [2024-11-23 23:04:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:04:14,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:14,461 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:14,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:04:14,462 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:04:14,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:14,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1598896011, now seen corresponding path program 1 times [2024-11-23 23:04:14,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:14,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263130051] [2024-11-23 23:04:14,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:14,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:04:23,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:23,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263130051] [2024-11-23 23:04:23,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263130051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:23,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:04:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528774581] [2024-11-23 23:04:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:23,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:04:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:23,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:04:23,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:04:23,245 INFO L87 Difference]: Start difference. First operand 433 states and 662 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:04:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:27,517 INFO L93 Difference]: Finished difference Result 1164 states and 1774 transitions. [2024-11-23 23:04:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:04:27,517 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 203 [2024-11-23 23:04:27,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:27,520 INFO L225 Difference]: With dead ends: 1164 [2024-11-23 23:04:27,520 INFO L226 Difference]: Without dead ends: 894 [2024-11-23 23:04:27,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2024-11-23 23:04:27,521 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1208 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:27,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 698 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 23:04:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-11-23 23:04:27,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 469. [2024-11-23 23:04:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 396 states have (on average 1.4848484848484849) internal successors, (588), 397 states have internal predecessors, (588), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:04:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 720 transitions. [2024-11-23 23:04:27,585 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 720 transitions. Word has length 203 [2024-11-23 23:04:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:27,586 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 720 transitions. [2024-11-23 23:04:27,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:04:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 720 transitions. [2024-11-23 23:04:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:04:27,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:27,588 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:27,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:04:27,588 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:04:27,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:27,589 INFO L85 PathProgramCache]: Analyzing trace with hash -290074933, now seen corresponding path program 1 times [2024-11-23 23:04:27,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:27,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049916859] [2024-11-23 23:04:27,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:27,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:39,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:04:39,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:39,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049916859] [2024-11-23 23:04:39,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049916859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:39,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:39,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:04:39,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756514117] [2024-11-23 23:04:39,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:39,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:04:39,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:39,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:04:39,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:04:39,740 INFO L87 Difference]: Start difference. First operand 469 states and 720 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:44,757 INFO L93 Difference]: Finished difference Result 1157 states and 1776 transitions. [2024-11-23 23:04:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:04:44,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:04:44,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:44,760 INFO L225 Difference]: With dead ends: 1157 [2024-11-23 23:04:44,760 INFO L226 Difference]: Without dead ends: 854 [2024-11-23 23:04:44,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:04:44,761 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 573 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:44,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 944 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 23:04:44,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-23 23:04:44,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 484. [2024-11-23 23:04:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 411 states have (on average 1.489051094890511) internal successors, (612), 412 states have internal predecessors, (612), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:04:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 744 transitions. [2024-11-23 23:04:44,811 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 744 transitions. Word has length 203 [2024-11-23 23:04:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:44,811 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 744 transitions. [2024-11-23 23:04:44,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 744 transitions. [2024-11-23 23:04:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:04:44,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:44,813 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:44,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:04:44,814 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:04:44,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1878422835, now seen corresponding path program 1 times [2024-11-23 23:04:44,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:44,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363967057] [2024-11-23 23:04:44,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:44,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:51,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:04:51,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:51,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363967057] [2024-11-23 23:04:51,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363967057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:51,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:51,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:04:51,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002955007] [2024-11-23 23:04:51,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:51,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:04:51,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:51,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:04:51,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:04:51,101 INFO L87 Difference]: Start difference. First operand 484 states and 744 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:54,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:54,166 INFO L93 Difference]: Finished difference Result 1241 states and 1897 transitions. [2024-11-23 23:04:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:04:54,167 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:04:54,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:54,169 INFO L225 Difference]: With dead ends: 1241 [2024-11-23 23:04:54,169 INFO L226 Difference]: Without dead ends: 938 [2024-11-23 23:04:54,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-11-23 23:04:54,171 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 781 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:54,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 950 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:04:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-23 23:04:54,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 482. [2024-11-23 23:04:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 409 states have (on average 1.488997555012225) internal successors, (609), 410 states have internal predecessors, (609), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 23:04:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 741 transitions. [2024-11-23 23:04:54,238 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 741 transitions. Word has length 203 [2024-11-23 23:04:54,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:54,238 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 741 transitions. [2024-11-23 23:04:54,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:54,239 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 741 transitions. [2024-11-23 23:04:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:04:54,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:54,240 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:54,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:04:54,241 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:04:54,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:54,241 INFO L85 PathProgramCache]: Analyzing trace with hash -910678009, now seen corresponding path program 1 times [2024-11-23 23:04:54,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:54,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961580989] [2024-11-23 23:04:54,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:54,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:04:54,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961580989] [2024-11-23 23:04:54,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961580989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:54,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:54,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:04:54,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044090566] [2024-11-23 23:04:54,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:54,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:04:54,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:54,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:04:54,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:04:54,415 INFO L87 Difference]: Start difference. First operand 482 states and 741 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:54,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:54,532 INFO L93 Difference]: Finished difference Result 856 states and 1317 transitions. [2024-11-23 23:04:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:04:54,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:04:54,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:54,535 INFO L225 Difference]: With dead ends: 856 [2024-11-23 23:04:54,535 INFO L226 Difference]: Without dead ends: 545 [2024-11-23 23:04:54,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:04:54,537 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 115 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:54,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 518 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:04:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-23 23:04:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 440. [2024-11-23 23:04:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 370 states have (on average 1.4675675675675677) internal successors, (543), 370 states have internal predecessors, (543), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:04:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 667 transitions. [2024-11-23 23:04:54,597 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 667 transitions. Word has length 203 [2024-11-23 23:04:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:54,598 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 667 transitions. [2024-11-23 23:04:54,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:04:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 667 transitions. [2024-11-23 23:04:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:04:54,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:54,600 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:54,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:04:54,600 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:04:54,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:54,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1921795259, now seen corresponding path program 1 times [2024-11-23 23:04:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:54,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629769427] [2024-11-23 23:04:54,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:54,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:05:00,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:00,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629769427] [2024-11-23 23:05:00,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629769427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:05:00,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:05:00,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 23:05:00,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317227607] [2024-11-23 23:05:00,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:05:00,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:05:00,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:00,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:05:00,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:05:00,077 INFO L87 Difference]: Start difference. First operand 440 states and 667 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:05:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:05:03,924 INFO L93 Difference]: Finished difference Result 990 states and 1493 transitions. [2024-11-23 23:05:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:05:03,926 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 203 [2024-11-23 23:05:03,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:05:03,929 INFO L225 Difference]: With dead ends: 990 [2024-11-23 23:05:03,929 INFO L226 Difference]: Without dead ends: 729 [2024-11-23 23:05:03,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2024-11-23 23:05:03,932 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 627 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:05:03,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1164 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 23:05:03,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-23 23:05:03,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 461. [2024-11-23 23:05:03,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 391 states have (on average 1.4757033248081841) internal successors, (577), 391 states have internal predecessors, (577), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:05:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 701 transitions. [2024-11-23 23:05:03,995 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 701 transitions. Word has length 203 [2024-11-23 23:05:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:05:03,996 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 701 transitions. [2024-11-23 23:05:03,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:05:03,996 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 701 transitions. [2024-11-23 23:05:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:05:03,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:05:03,998 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:05:03,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:05:03,998 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:05:03,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:05:03,998 INFO L85 PathProgramCache]: Analyzing trace with hash 784824135, now seen corresponding path program 1 times [2024-11-23 23:05:03,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:05:03,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882526845] [2024-11-23 23:05:03,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:03,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:05:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:05:15,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:15,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882526845] [2024-11-23 23:05:15,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882526845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:05:15,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:05:15,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:05:15,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711168006] [2024-11-23 23:05:15,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:05:15,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:05:15,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:15,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:05:15,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:05:15,198 INFO L87 Difference]: Start difference. First operand 461 states and 701 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:05:16,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:05:16,398 INFO L93 Difference]: Finished difference Result 872 states and 1319 transitions. [2024-11-23 23:05:16,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:05:16,399 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-23 23:05:16,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:05:16,402 INFO L225 Difference]: With dead ends: 872 [2024-11-23 23:05:16,402 INFO L226 Difference]: Without dead ends: 611 [2024-11-23 23:05:16,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:05:16,404 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 357 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:05:16,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 519 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:05:16,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-23 23:05:16,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 480. [2024-11-23 23:05:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 410 states have (on average 1.4829268292682927) internal successors, (608), 410 states have internal predecessors, (608), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:05:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 732 transitions. [2024-11-23 23:05:16,491 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 732 transitions. Word has length 203 [2024-11-23 23:05:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:05:16,492 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 732 transitions. [2024-11-23 23:05:16,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:05:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 732 transitions. [2024-11-23 23:05:16,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:05:16,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:05:16,494 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:05:16,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:05:16,494 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:05:16,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:05:16,495 INFO L85 PathProgramCache]: Analyzing trace with hash 10077501, now seen corresponding path program 1 times [2024-11-23 23:05:16,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:05:16,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702119334] [2024-11-23 23:05:16,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:16,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:05:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:05:40,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:40,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702119334] [2024-11-23 23:05:40,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702119334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:05:40,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:05:40,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:05:40,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432176516] [2024-11-23 23:05:40,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:05:40,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:05:40,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:40,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:05:40,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:05:40,692 INFO L87 Difference]: Start difference. First operand 480 states and 732 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:05:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:05:42,499 INFO L93 Difference]: Finished difference Result 535 states and 800 transitions. [2024-11-23 23:05:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:05:42,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-11-23 23:05:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:05:42,501 INFO L225 Difference]: With dead ends: 535 [2024-11-23 23:05:42,501 INFO L226 Difference]: Without dead ends: 533 [2024-11-23 23:05:42,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:05:42,502 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 118 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:05:42,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 980 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:05:42,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-23 23:05:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 502. [2024-11-23 23:05:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 431 states have (on average 1.4756380510440836) internal successors, (636), 431 states have internal predecessors, (636), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:05:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 760 transitions. [2024-11-23 23:05:42,562 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 760 transitions. Word has length 204 [2024-11-23 23:05:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:05:42,562 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 760 transitions. [2024-11-23 23:05:42,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:05:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 760 transitions. [2024-11-23 23:05:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:05:42,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:05:42,564 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:05:42,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 23:05:42,565 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:05:42,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:05:42,565 INFO L85 PathProgramCache]: Analyzing trace with hash -47491707, now seen corresponding path program 1 times [2024-11-23 23:05:42,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:05:42,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764769114] [2024-11-23 23:05:42,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:42,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:05:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:05:54,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:54,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764769114] [2024-11-23 23:05:54,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764769114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:05:54,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:05:54,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:05:54,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036827273] [2024-11-23 23:05:54,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:05:54,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:05:54,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:54,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:05:54,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:05:54,831 INFO L87 Difference]: Start difference. First operand 502 states and 760 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:05:57,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:05:57,860 INFO L93 Difference]: Finished difference Result 908 states and 1370 transitions. [2024-11-23 23:05:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:05:57,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-11-23 23:05:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:05:57,864 INFO L225 Difference]: With dead ends: 908 [2024-11-23 23:05:57,864 INFO L226 Difference]: Without dead ends: 608 [2024-11-23 23:05:57,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:05:57,865 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 227 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:05:57,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 506 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:05:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-23 23:05:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 482. [2024-11-23 23:05:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 411 states have (on average 1.4744525547445255) internal successors, (606), 411 states have internal predecessors, (606), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:05:57,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 730 transitions. [2024-11-23 23:05:57,934 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 730 transitions. Word has length 204 [2024-11-23 23:05:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:05:57,934 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 730 transitions. [2024-11-23 23:05:57,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:05:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 730 transitions. [2024-11-23 23:05:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:05:57,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:05:57,936 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:05:57,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 23:05:57,937 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:05:57,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:05:57,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1884603051, now seen corresponding path program 1 times [2024-11-23 23:05:57,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:05:57,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361257133] [2024-11-23 23:05:57,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:57,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:05:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:06:10,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:10,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361257133] [2024-11-23 23:06:10,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361257133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:06:10,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:06:10,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:06:10,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326605435] [2024-11-23 23:06:10,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:06:10,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:06:10,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:10,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:06:10,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:06:10,797 INFO L87 Difference]: Start difference. First operand 482 states and 730 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:06:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:15,282 INFO L93 Difference]: Finished difference Result 1184 states and 1764 transitions. [2024-11-23 23:06:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:06:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-11-23 23:06:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:15,285 INFO L225 Difference]: With dead ends: 1184 [2024-11-23 23:06:15,285 INFO L226 Difference]: Without dead ends: 893 [2024-11-23 23:06:15,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:06:15,286 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 460 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:15,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 728 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 23:06:15,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2024-11-23 23:06:15,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 491. [2024-11-23 23:06:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 420 states have (on average 1.4785714285714286) internal successors, (621), 420 states have internal predecessors, (621), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:06:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 745 transitions. [2024-11-23 23:06:15,342 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 745 transitions. Word has length 204 [2024-11-23 23:06:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:15,343 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 745 transitions. [2024-11-23 23:06:15,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:06:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 745 transitions. [2024-11-23 23:06:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:06:15,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:15,345 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:15,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 23:06:15,345 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:15,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 604739373, now seen corresponding path program 1 times [2024-11-23 23:06:15,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:15,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145808985] [2024-11-23 23:06:15,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:15,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:06:24,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:24,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145808985] [2024-11-23 23:06:24,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145808985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:06:24,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:06:24,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:06:24,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208339861] [2024-11-23 23:06:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:06:24,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:06:24,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:24,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:06:24,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:06:24,234 INFO L87 Difference]: Start difference. First operand 491 states and 745 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:06:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:27,271 INFO L93 Difference]: Finished difference Result 1159 states and 1744 transitions. [2024-11-23 23:06:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:06:27,271 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-11-23 23:06:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:27,274 INFO L225 Difference]: With dead ends: 1159 [2024-11-23 23:06:27,274 INFO L226 Difference]: Without dead ends: 868 [2024-11-23 23:06:27,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:06:27,275 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 636 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:27,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1168 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 23:06:27,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-23 23:06:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 508. [2024-11-23 23:06:27,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 437 states have (on average 1.4851258581235698) internal successors, (649), 437 states have internal predecessors, (649), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:06:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 773 transitions. [2024-11-23 23:06:27,320 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 773 transitions. Word has length 204 [2024-11-23 23:06:27,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:27,321 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 773 transitions. [2024-11-23 23:06:27,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:06:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 773 transitions. [2024-11-23 23:06:27,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:06:27,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:27,323 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:27,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 23:06:27,323 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:27,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash -109541655, now seen corresponding path program 1 times [2024-11-23 23:06:27,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:27,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797448658] [2024-11-23 23:06:27,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:06:40,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:40,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797448658] [2024-11-23 23:06:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797448658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:06:40,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:06:40,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 23:06:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13031309] [2024-11-23 23:06:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:06:40,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:06:40,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:40,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:06:40,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:06:40,562 INFO L87 Difference]: Start difference. First operand 508 states and 773 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:06:48,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:48,717 INFO L93 Difference]: Finished difference Result 1165 states and 1745 transitions. [2024-11-23 23:06:48,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 23:06:48,717 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 204 [2024-11-23 23:06:48,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:48,721 INFO L225 Difference]: With dead ends: 1165 [2024-11-23 23:06:48,721 INFO L226 Difference]: Without dead ends: 874 [2024-11-23 23:06:48,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 23:06:48,723 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 1338 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:48,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 857 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-23 23:06:48,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-11-23 23:06:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 507. [2024-11-23 23:06:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 436 states have (on average 1.4839449541284404) internal successors, (647), 436 states have internal predecessors, (647), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:06:48,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 771 transitions. [2024-11-23 23:06:48,780 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 771 transitions. Word has length 204 [2024-11-23 23:06:48,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:48,780 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 771 transitions. [2024-11-23 23:06:48,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:06:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 771 transitions. [2024-11-23 23:06:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:06:48,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:48,781 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:48,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 23:06:48,781 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:48,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:48,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1389405333, now seen corresponding path program 1 times [2024-11-23 23:06:48,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:48,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628661178] [2024-11-23 23:06:48,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:48,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:06:56,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:56,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628661178] [2024-11-23 23:06:56,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628661178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:06:56,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:06:56,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:06:56,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324401693] [2024-11-23 23:06:56,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:06:56,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:06:56,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:56,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:06:56,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:06:56,259 INFO L87 Difference]: Start difference. First operand 507 states and 771 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:06:58,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:58,644 INFO L93 Difference]: Finished difference Result 1083 states and 1630 transitions. [2024-11-23 23:06:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:06:58,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-11-23 23:06:58,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:58,648 INFO L225 Difference]: With dead ends: 1083 [2024-11-23 23:06:58,648 INFO L226 Difference]: Without dead ends: 792 [2024-11-23 23:06:58,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:06:58,650 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 690 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:58,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 932 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 23:06:58,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-11-23 23:06:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 504. [2024-11-23 23:06:58,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 433 states have (on average 1.4826789838337182) internal successors, (642), 433 states have internal predecessors, (642), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:06:58,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 766 transitions. [2024-11-23 23:06:58,711 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 766 transitions. Word has length 204 [2024-11-23 23:06:58,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:58,711 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 766 transitions. [2024-11-23 23:06:58,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:06:58,711 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 766 transitions. [2024-11-23 23:06:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:06:58,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:58,713 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:58,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 23:06:58,713 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:58,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash 823594091, now seen corresponding path program 1 times [2024-11-23 23:06:58,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:58,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695500152] [2024-11-23 23:06:58,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:06:59,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:59,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695500152] [2024-11-23 23:06:59,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695500152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:06:59,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:06:59,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:06:59,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686054332] [2024-11-23 23:06:59,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:06:59,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:06:59,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:59,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:06:59,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:06:59,549 INFO L87 Difference]: Start difference. First operand 504 states and 766 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:00,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:00,530 INFO L93 Difference]: Finished difference Result 1020 states and 1529 transitions. [2024-11-23 23:07:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:07:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-11-23 23:07:00,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:00,533 INFO L225 Difference]: With dead ends: 1020 [2024-11-23 23:07:00,534 INFO L226 Difference]: Without dead ends: 719 [2024-11-23 23:07:00,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:07:00,535 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 492 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:00,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 606 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:07:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-23 23:07:00,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 491. [2024-11-23 23:07:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 420 states have (on average 1.4785714285714286) internal successors, (621), 420 states have internal predecessors, (621), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:07:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 745 transitions. [2024-11-23 23:07:00,585 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 745 transitions. Word has length 204 [2024-11-23 23:07:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:00,586 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 745 transitions. [2024-11-23 23:07:00,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:00,586 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 745 transitions. [2024-11-23 23:07:00,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:07:00,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:00,587 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:00,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 23:07:00,587 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:00,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:00,588 INFO L85 PathProgramCache]: Analyzing trace with hash 109313063, now seen corresponding path program 1 times [2024-11-23 23:07:00,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:00,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692485848] [2024-11-23 23:07:00,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:00,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:07:07,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:07,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692485848] [2024-11-23 23:07:07,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692485848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:07,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:07,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:07:07,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427990207] [2024-11-23 23:07:07,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:07,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:07:07,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:07,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:07:07,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:07:07,330 INFO L87 Difference]: Start difference. First operand 491 states and 745 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:08,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:08,794 INFO L93 Difference]: Finished difference Result 928 states and 1395 transitions. [2024-11-23 23:07:08,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:07:08,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-11-23 23:07:08,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:08,797 INFO L225 Difference]: With dead ends: 928 [2024-11-23 23:07:08,797 INFO L226 Difference]: Without dead ends: 637 [2024-11-23 23:07:08,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:07:08,798 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 445 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:08,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 513 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:07:08,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-23 23:07:08,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 467. [2024-11-23 23:07:08,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 396 states have (on average 1.4772727272727273) internal successors, (585), 396 states have internal predecessors, (585), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:07:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 709 transitions. [2024-11-23 23:07:08,842 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 709 transitions. Word has length 204 [2024-11-23 23:07:08,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:08,842 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 709 transitions. [2024-11-23 23:07:08,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:08,842 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 709 transitions. [2024-11-23 23:07:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:07:08,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:08,844 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:08,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 23:07:08,844 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:08,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash 745287983, now seen corresponding path program 1 times [2024-11-23 23:07:08,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:08,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785320082] [2024-11-23 23:07:08,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:07:10,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:10,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785320082] [2024-11-23 23:07:10,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785320082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:10,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:10,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:07:10,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227428459] [2024-11-23 23:07:10,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:10,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:07:10,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:10,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:07:10,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:07:10,046 INFO L87 Difference]: Start difference. First operand 467 states and 709 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:07:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:11,601 INFO L93 Difference]: Finished difference Result 907 states and 1360 transitions. [2024-11-23 23:07:11,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:07:11,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-11-23 23:07:11,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:11,605 INFO L225 Difference]: With dead ends: 907 [2024-11-23 23:07:11,605 INFO L226 Difference]: Without dead ends: 631 [2024-11-23 23:07:11,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:07:11,608 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 517 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:11,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 841 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:07:11,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-23 23:07:11,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 476. [2024-11-23 23:07:11,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 405 states have (on average 1.4790123456790123) internal successors, (599), 405 states have internal predecessors, (599), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:07:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 723 transitions. [2024-11-23 23:07:11,766 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 723 transitions. Word has length 204 [2024-11-23 23:07:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:11,769 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 723 transitions. [2024-11-23 23:07:11,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:07:11,770 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 723 transitions. [2024-11-23 23:07:11,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:07:11,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:11,771 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:11,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 23:07:11,771 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:11,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:11,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2075746768, now seen corresponding path program 1 times [2024-11-23 23:07:11,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:11,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18753263] [2024-11-23 23:07:11,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:11,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:13,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:07:13,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:13,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18753263] [2024-11-23 23:07:13,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18753263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:13,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:13,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:07:13,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707548759] [2024-11-23 23:07:13,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:13,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:07:13,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:13,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:07:13,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:07:13,132 INFO L87 Difference]: Start difference. First operand 476 states and 723 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:07:15,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:15,292 INFO L93 Difference]: Finished difference Result 1024 states and 1532 transitions. [2024-11-23 23:07:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:07:15,293 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-11-23 23:07:15,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:15,296 INFO L225 Difference]: With dead ends: 1024 [2024-11-23 23:07:15,296 INFO L226 Difference]: Without dead ends: 741 [2024-11-23 23:07:15,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:07:15,297 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 553 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:15,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 931 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:07:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-23 23:07:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 480. [2024-11-23 23:07:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 409 states have (on average 1.4792176039119804) internal successors, (605), 409 states have internal predecessors, (605), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:07:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 729 transitions. [2024-11-23 23:07:15,360 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 729 transitions. Word has length 204 [2024-11-23 23:07:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:15,360 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 729 transitions. [2024-11-23 23:07:15,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:07:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 729 transitions. [2024-11-23 23:07:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:07:15,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:15,361 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:15,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 23:07:15,361 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:15,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:15,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1395688398, now seen corresponding path program 1 times [2024-11-23 23:07:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:15,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630643286] [2024-11-23 23:07:15,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:15,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:07:15,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:15,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630643286] [2024-11-23 23:07:15,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630643286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:15,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:15,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:15,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426589975] [2024-11-23 23:07:15,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:15,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:15,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:15,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:15,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:15,562 INFO L87 Difference]: Start difference. First operand 480 states and 729 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:15,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:15,784 INFO L93 Difference]: Finished difference Result 858 states and 1290 transitions. [2024-11-23 23:07:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-11-23 23:07:15,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:15,787 INFO L225 Difference]: With dead ends: 858 [2024-11-23 23:07:15,787 INFO L226 Difference]: Without dead ends: 569 [2024-11-23 23:07:15,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:15,788 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 125 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:15,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 416 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:07:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-23 23:07:15,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 529. [2024-11-23 23:07:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 455 states have (on average 1.4615384615384615) internal successors, (665), 456 states have internal predecessors, (665), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:07:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 793 transitions. [2024-11-23 23:07:15,843 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 793 transitions. Word has length 204 [2024-11-23 23:07:15,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:15,843 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 793 transitions. [2024-11-23 23:07:15,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:15,844 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 793 transitions. [2024-11-23 23:07:15,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:07:15,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:15,845 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:15,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 23:07:15,846 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:15,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:15,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1861561919, now seen corresponding path program 1 times [2024-11-23 23:07:15,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:15,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109212315] [2024-11-23 23:07:15,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:15,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:07:15,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:15,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109212315] [2024-11-23 23:07:15,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109212315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:15,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:15,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:07:15,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685066184] [2024-11-23 23:07:15,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:15,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:07:15,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:15,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:07:15,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:15,982 INFO L87 Difference]: Start difference. First operand 529 states and 793 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:16,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:16,097 INFO L93 Difference]: Finished difference Result 867 states and 1307 transitions. [2024-11-23 23:07:16,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:07:16,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-11-23 23:07:16,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:16,100 INFO L225 Difference]: With dead ends: 867 [2024-11-23 23:07:16,100 INFO L226 Difference]: Without dead ends: 534 [2024-11-23 23:07:16,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:16,101 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:16,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:07:16,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-23 23:07:16,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 533. [2024-11-23 23:07:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 459 states have (on average 1.457516339869281) internal successors, (669), 460 states have internal predecessors, (669), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:07:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 797 transitions. [2024-11-23 23:07:16,156 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 797 transitions. Word has length 204 [2024-11-23 23:07:16,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:16,157 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 797 transitions. [2024-11-23 23:07:16,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:07:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 797 transitions. [2024-11-23 23:07:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 23:07:16,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:16,158 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:16,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 23:07:16,158 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:16,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:16,159 INFO L85 PathProgramCache]: Analyzing trace with hash -351738177, now seen corresponding path program 1 times [2024-11-23 23:07:16,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:16,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552767194] [2024-11-23 23:07:16,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:16,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:04,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552767194] [2024-11-23 23:08:04,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552767194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:04,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:04,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:08:04,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880641401] [2024-11-23 23:08:04,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:04,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:08:04,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:04,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:08:04,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:08:04,404 INFO L87 Difference]: Start difference. First operand 533 states and 797 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:05,437 INFO L93 Difference]: Finished difference Result 637 states and 925 transitions. [2024-11-23 23:08:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:08:05,437 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-23 23:08:05,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:05,439 INFO L225 Difference]: With dead ends: 637 [2024-11-23 23:08:05,440 INFO L226 Difference]: Without dead ends: 635 [2024-11-23 23:08:05,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:08:05,440 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:05,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1293 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:08:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-23 23:08:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 535. [2024-11-23 23:08:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 461 states have (on average 1.4555314533622559) internal successors, (671), 462 states have internal predecessors, (671), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:08:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 799 transitions. [2024-11-23 23:08:05,496 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 799 transitions. Word has length 205 [2024-11-23 23:08:05,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:05,497 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 799 transitions. [2024-11-23 23:08:05,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 799 transitions. [2024-11-23 23:08:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 23:08:05,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:05,498 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:05,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 23:08:05,498 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:05,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:05,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1000544890, now seen corresponding path program 1 times [2024-11-23 23:08:05,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:05,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780990037] [2024-11-23 23:08:05,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:05,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:15,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:15,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780990037] [2024-11-23 23:08:15,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780990037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:15,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:15,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:08:15,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025469749] [2024-11-23 23:08:15,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:15,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:08:15,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:15,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:08:15,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:08:15,670 INFO L87 Difference]: Start difference. First operand 535 states and 799 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:16,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:16,875 INFO L93 Difference]: Finished difference Result 980 states and 1458 transitions. [2024-11-23 23:08:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:08:16,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-23 23:08:16,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:16,878 INFO L225 Difference]: With dead ends: 980 [2024-11-23 23:08:16,879 INFO L226 Difference]: Without dead ends: 643 [2024-11-23 23:08:16,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:08:16,880 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 329 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:16,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 636 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:08:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-23 23:08:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 558. [2024-11-23 23:08:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 484 states have (on average 1.4607438016528926) internal successors, (707), 485 states have internal predecessors, (707), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:08:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 835 transitions. [2024-11-23 23:08:16,960 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 835 transitions. Word has length 205 [2024-11-23 23:08:16,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:16,961 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 835 transitions. [2024-11-23 23:08:16,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 835 transitions. [2024-11-23 23:08:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 23:08:16,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:16,962 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:16,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-23 23:08:16,962 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:16,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:16,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1605478664, now seen corresponding path program 1 times [2024-11-23 23:08:16,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:16,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650538128] [2024-11-23 23:08:16,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:16,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:30,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:30,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650538128] [2024-11-23 23:08:30,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650538128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:30,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:30,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 23:08:30,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121586317] [2024-11-23 23:08:30,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:30,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:08:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:30,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:08:30,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:08:30,824 INFO L87 Difference]: Start difference. First operand 558 states and 835 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:08:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:36,409 INFO L93 Difference]: Finished difference Result 1247 states and 1845 transitions. [2024-11-23 23:08:36,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:08:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 205 [2024-11-23 23:08:36,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:36,414 INFO L225 Difference]: With dead ends: 1247 [2024-11-23 23:08:36,414 INFO L226 Difference]: Without dead ends: 895 [2024-11-23 23:08:36,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=250, Invalid=680, Unknown=0, NotChecked=0, Total=930 [2024-11-23 23:08:36,415 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 771 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:36,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 930 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:08:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-23 23:08:36,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 568. [2024-11-23 23:08:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 494 states have (on average 1.4635627530364372) internal successors, (723), 495 states have internal predecessors, (723), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:08:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 851 transitions. [2024-11-23 23:08:36,504 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 851 transitions. Word has length 205 [2024-11-23 23:08:36,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:36,504 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 851 transitions. [2024-11-23 23:08:36,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:08:36,504 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 851 transitions. [2024-11-23 23:08:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 23:08:36,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:36,506 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:36,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 23:08:36,507 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:36,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:36,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2009430262, now seen corresponding path program 1 times [2024-11-23 23:08:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:36,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870027511] [2024-11-23 23:08:36,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:36,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:51,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:51,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870027511] [2024-11-23 23:08:51,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870027511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:51,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:51,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:08:51,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131709449] [2024-11-23 23:08:51,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:51,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:08:51,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:51,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:08:51,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:08:51,526 INFO L87 Difference]: Start difference. First operand 568 states and 851 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:53,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:53,325 INFO L93 Difference]: Finished difference Result 968 states and 1446 transitions. [2024-11-23 23:08:53,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:08:53,325 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-23 23:08:53,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:53,328 INFO L225 Difference]: With dead ends: 968 [2024-11-23 23:08:53,328 INFO L226 Difference]: Without dead ends: 616 [2024-11-23 23:08:53,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:08:53,330 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 227 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:53,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 625 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:08:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-23 23:08:53,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 548. [2024-11-23 23:08:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 474 states have (on average 1.4578059071729959) internal successors, (691), 475 states have internal predecessors, (691), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:08:53,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 819 transitions. [2024-11-23 23:08:53,389 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 819 transitions. Word has length 205 [2024-11-23 23:08:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:53,389 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 819 transitions. [2024-11-23 23:08:53,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:53,389 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 819 transitions. [2024-11-23 23:08:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 23:08:53,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:53,391 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:53,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-23 23:08:53,391 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:53,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:53,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1818193340, now seen corresponding path program 1 times [2024-11-23 23:08:53,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:53,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814206720] [2024-11-23 23:08:53,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:53,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:54,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:54,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814206720] [2024-11-23 23:08:54,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814206720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:54,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:54,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:08:54,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493335483] [2024-11-23 23:08:54,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:54,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:08:54,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:54,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:08:54,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:08:54,648 INFO L87 Difference]: Start difference. First operand 548 states and 819 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:56,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:56,596 INFO L93 Difference]: Finished difference Result 1083 states and 1607 transitions. [2024-11-23 23:08:56,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:08:56,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-23 23:08:56,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:56,600 INFO L225 Difference]: With dead ends: 1083 [2024-11-23 23:08:56,600 INFO L226 Difference]: Without dead ends: 727 [2024-11-23 23:08:56,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:08:56,601 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 334 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:56,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 923 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:08:56,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-23 23:08:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 548. [2024-11-23 23:08:56,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 474 states have (on average 1.4556962025316456) internal successors, (690), 475 states have internal predecessors, (690), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:08:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 818 transitions. [2024-11-23 23:08:56,666 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 818 transitions. Word has length 205 [2024-11-23 23:08:56,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:56,666 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 818 transitions. [2024-11-23 23:08:56,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:56,667 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 818 transitions. [2024-11-23 23:08:56,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 23:08:56,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:56,668 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:56,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-23 23:08:56,668 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:56,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash 671335622, now seen corresponding path program 1 times [2024-11-23 23:08:56,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:56,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272824355] [2024-11-23 23:08:56,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:56,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:57,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:57,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272824355] [2024-11-23 23:08:57,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272824355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:57,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:57,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:08:57,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707219471] [2024-11-23 23:08:57,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:57,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:08:57,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:57,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:08:57,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:08:57,088 INFO L87 Difference]: Start difference. First operand 548 states and 818 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:57,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:57,627 INFO L93 Difference]: Finished difference Result 1004 states and 1493 transitions. [2024-11-23 23:08:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:08:57,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-23 23:08:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:57,630 INFO L225 Difference]: With dead ends: 1004 [2024-11-23 23:08:57,630 INFO L226 Difference]: Without dead ends: 648 [2024-11-23 23:08:57,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:08:57,631 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 172 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:57,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 592 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:08:57,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-23 23:08:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 539. [2024-11-23 23:08:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 465 states have (on average 1.4537634408602151) internal successors, (676), 466 states have internal predecessors, (676), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:08:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 804 transitions. [2024-11-23 23:08:57,703 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 804 transitions. Word has length 205 [2024-11-23 23:08:57,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:57,703 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 804 transitions. [2024-11-23 23:08:57,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 804 transitions. [2024-11-23 23:08:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-23 23:08:57,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:57,705 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:57,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-23 23:08:57,705 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:57,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:57,705 INFO L85 PathProgramCache]: Analyzing trace with hash -74486418, now seen corresponding path program 1 times [2024-11-23 23:08:57,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:57,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980332172] [2024-11-23 23:08:57,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:57,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:57,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:57,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980332172] [2024-11-23 23:08:57,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980332172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:57,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:57,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:57,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898163233] [2024-11-23 23:08:57,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:57,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:57,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:57,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:57,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:57,800 INFO L87 Difference]: Start difference. First operand 539 states and 804 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:57,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:57,937 INFO L93 Difference]: Finished difference Result 949 states and 1403 transitions. [2024-11-23 23:08:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:57,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-11-23 23:08:57,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:57,940 INFO L225 Difference]: With dead ends: 949 [2024-11-23 23:08:57,940 INFO L226 Difference]: Without dead ends: 602 [2024-11-23 23:08:57,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:57,941 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 41 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:57,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 318 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:57,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-23 23:08:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 581. [2024-11-23 23:08:58,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 491 states have (on average 1.4276985743380854) internal successors, (701), 494 states have internal predecessors, (701), 76 states have call successors, (76), 13 states have call predecessors, (76), 13 states have return successors, (76), 73 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-23 23:08:58,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 853 transitions. [2024-11-23 23:08:58,039 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 853 transitions. Word has length 206 [2024-11-23 23:08:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:58,039 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 853 transitions. [2024-11-23 23:08:58,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 853 transitions. [2024-11-23 23:08:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-23 23:08:58,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:58,040 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:58,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-23 23:08:58,041 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:58,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:58,041 INFO L85 PathProgramCache]: Analyzing trace with hash -129766895, now seen corresponding path program 1 times [2024-11-23 23:08:58,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:58,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869732854] [2024-11-23 23:08:58,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:58,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:08:58,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:58,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869732854] [2024-11-23 23:08:58,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869732854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:58,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:58,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:58,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895263455] [2024-11-23 23:08:58,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:58,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:58,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:58,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:58,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:58,110 INFO L87 Difference]: Start difference. First operand 581 states and 853 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:58,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:58,272 INFO L93 Difference]: Finished difference Result 991 states and 1445 transitions. [2024-11-23 23:08:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:58,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-11-23 23:08:58,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:58,274 INFO L225 Difference]: With dead ends: 991 [2024-11-23 23:08:58,274 INFO L226 Difference]: Without dead ends: 592 [2024-11-23 23:08:58,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:58,275 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 48 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:58,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 294 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:58,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-23 23:08:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 543. [2024-11-23 23:08:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 467 states have (on average 1.4411134903640257) internal successors, (673), 468 states have internal predecessors, (673), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:08:58,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 801 transitions. [2024-11-23 23:08:58,344 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 801 transitions. Word has length 206 [2024-11-23 23:08:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:58,344 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 801 transitions. [2024-11-23 23:08:58,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:08:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 801 transitions. [2024-11-23 23:08:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-23 23:08:58,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:58,345 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:58,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-23 23:08:58,346 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:58,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash 908403158, now seen corresponding path program 1 times [2024-11-23 23:08:58,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:58,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956398001] [2024-11-23 23:08:58,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:58,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:10:18,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:18,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956398001] [2024-11-23 23:10:18,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956398001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:18,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:18,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:10:18,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142220950] [2024-11-23 23:10:18,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:18,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:10:18,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:18,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:10:18,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:10:18,773 INFO L87 Difference]: Start difference. First operand 543 states and 801 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:20,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:20,116 INFO L93 Difference]: Finished difference Result 645 states and 929 transitions. [2024-11-23 23:10:20,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:10:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-11-23 23:10:20,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:20,118 INFO L225 Difference]: With dead ends: 645 [2024-11-23 23:10:20,118 INFO L226 Difference]: Without dead ends: 643 [2024-11-23 23:10:20,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:10:20,119 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 104 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:20,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1569 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:10:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-23 23:10:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 533. [2024-11-23 23:10:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 457 states have (on average 1.4463894967177242) internal successors, (661), 458 states have internal predecessors, (661), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:10:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 789 transitions. [2024-11-23 23:10:20,237 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 789 transitions. Word has length 206 [2024-11-23 23:10:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:20,237 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 789 transitions. [2024-11-23 23:10:20,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 789 transitions. [2024-11-23 23:10:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-23 23:10:20,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:20,239 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:20,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-23 23:10:20,239 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:20,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1900298796, now seen corresponding path program 1 times [2024-11-23 23:10:20,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:20,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736269136] [2024-11-23 23:10:20,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:10:33,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:33,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736269136] [2024-11-23 23:10:33,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736269136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:33,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:33,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:10:33,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242757596] [2024-11-23 23:10:33,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:33,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:10:33,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:33,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:10:33,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:10:33,445 INFO L87 Difference]: Start difference. First operand 533 states and 789 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:34,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:34,774 INFO L93 Difference]: Finished difference Result 635 states and 913 transitions. [2024-11-23 23:10:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:10:34,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 207 [2024-11-23 23:10:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:34,777 INFO L225 Difference]: With dead ends: 635 [2024-11-23 23:10:34,777 INFO L226 Difference]: Without dead ends: 633 [2024-11-23 23:10:34,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:10:34,778 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 134 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:34,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 898 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:10:34,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-23 23:10:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 540. [2024-11-23 23:10:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 464 states have (on average 1.4439655172413792) internal successors, (670), 465 states have internal predecessors, (670), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:10:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 798 transitions. [2024-11-23 23:10:34,857 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 798 transitions. Word has length 207 [2024-11-23 23:10:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:34,858 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 798 transitions. [2024-11-23 23:10:34,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 798 transitions. [2024-11-23 23:10:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-23 23:10:34,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:34,859 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:34,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-23 23:10:34,859 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:34,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 379959907, now seen corresponding path program 1 times [2024-11-23 23:10:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:34,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185901419] [2024-11-23 23:10:34,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:10:35,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:35,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185901419] [2024-11-23 23:10:35,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185901419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:35,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:35,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:10:35,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679036174] [2024-11-23 23:10:35,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:35,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:10:35,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:35,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:10:35,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:35,011 INFO L87 Difference]: Start difference. First operand 540 states and 798 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:35,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:35,251 INFO L93 Difference]: Finished difference Result 1040 states and 1528 transitions. [2024-11-23 23:10:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:10:35,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 207 [2024-11-23 23:10:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:35,254 INFO L225 Difference]: With dead ends: 1040 [2024-11-23 23:10:35,254 INFO L226 Difference]: Without dead ends: 686 [2024-11-23 23:10:35,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:35,256 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 109 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:35,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 620 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:10:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-23 23:10:35,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 507. [2024-11-23 23:10:35,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 431 states have (on average 1.445475638051044) internal successors, (623), 432 states have internal predecessors, (623), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:10:35,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 751 transitions. [2024-11-23 23:10:35,373 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 751 transitions. Word has length 207 [2024-11-23 23:10:35,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:35,375 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 751 transitions. [2024-11-23 23:10:35,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:35,375 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 751 transitions. [2024-11-23 23:10:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 23:10:35,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:35,376 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:35,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-23 23:10:35,376 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:35,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:35,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1932322030, now seen corresponding path program 1 times [2024-11-23 23:10:35,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:35,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732801420] [2024-11-23 23:10:35,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:35,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:38,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:10:38,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:38,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732801420] [2024-11-23 23:10:38,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732801420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:38,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:38,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:10:38,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293163079] [2024-11-23 23:10:38,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:38,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:10:38,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:38,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:10:38,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:10:38,668 INFO L87 Difference]: Start difference. First operand 507 states and 751 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:39,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:39,097 INFO L93 Difference]: Finished difference Result 601 states and 867 transitions. [2024-11-23 23:10:39,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:10:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 208 [2024-11-23 23:10:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:39,100 INFO L225 Difference]: With dead ends: 601 [2024-11-23 23:10:39,100 INFO L226 Difference]: Without dead ends: 599 [2024-11-23 23:10:39,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:10:39,100 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 88 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:39,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1266 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:10:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-23 23:10:39,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 517. [2024-11-23 23:10:39,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 441 states have (on average 1.4444444444444444) internal successors, (637), 442 states have internal predecessors, (637), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:10:39,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 765 transitions. [2024-11-23 23:10:39,174 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 765 transitions. Word has length 208 [2024-11-23 23:10:39,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:39,174 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 765 transitions. [2024-11-23 23:10:39,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:10:39,174 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 765 transitions. [2024-11-23 23:10:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 23:10:39,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:39,175 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:39,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-23 23:10:39,176 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:39,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:39,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1878558459, now seen corresponding path program 1 times [2024-11-23 23:10:39,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:39,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326204761] [2024-11-23 23:10:39,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:39,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:11:04,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:04,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326204761] [2024-11-23 23:11:04,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326204761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:04,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:04,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:11:04,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085689281] [2024-11-23 23:11:04,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:04,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:11:04,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:04,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:11:04,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:11:04,721 INFO L87 Difference]: Start difference. First operand 517 states and 765 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:06,562 INFO L93 Difference]: Finished difference Result 602 states and 869 transitions. [2024-11-23 23:11:06,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:11:06,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 208 [2024-11-23 23:11:06,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:06,564 INFO L225 Difference]: With dead ends: 602 [2024-11-23 23:11:06,565 INFO L226 Difference]: Without dead ends: 600 [2024-11-23 23:11:06,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:11:06,565 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 92 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:06,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1293 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:11:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-23 23:11:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 527. [2024-11-23 23:11:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 451 states have (on average 1.4478935698447895) internal successors, (653), 452 states have internal predecessors, (653), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:11:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 781 transitions. [2024-11-23 23:11:06,651 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 781 transitions. Word has length 208 [2024-11-23 23:11:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:06,651 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 781 transitions. [2024-11-23 23:11:06,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:06,652 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 781 transitions. [2024-11-23 23:11:06,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 23:11:06,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:06,653 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:06,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-23 23:11:06,653 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:06,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2142939245, now seen corresponding path program 1 times [2024-11-23 23:11:06,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:06,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853155539] [2024-11-23 23:11:06,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:11:06,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:06,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853155539] [2024-11-23 23:11:06,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853155539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:06,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:06,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:11:06,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778912454] [2024-11-23 23:11:06,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:06,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:11:06,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:06,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:11:06,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:06,734 INFO L87 Difference]: Start difference. First operand 527 states and 781 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:06,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:06,951 INFO L93 Difference]: Finished difference Result 978 states and 1430 transitions. [2024-11-23 23:11:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:11:06,952 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 209 [2024-11-23 23:11:06,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:06,954 INFO L225 Difference]: With dead ends: 978 [2024-11-23 23:11:06,954 INFO L226 Difference]: Without dead ends: 602 [2024-11-23 23:11:06,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:06,956 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 42 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:06,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 297 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:11:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-23 23:11:07,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 549. [2024-11-23 23:11:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 473 states have (on average 1.4334038054968288) internal successors, (678), 474 states have internal predecessors, (678), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:11:07,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 806 transitions. [2024-11-23 23:11:07,070 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 806 transitions. Word has length 209 [2024-11-23 23:11:07,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:07,071 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 806 transitions. [2024-11-23 23:11:07,071 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 806 transitions. [2024-11-23 23:11:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 23:11:07,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:07,073 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:07,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-23 23:11:07,073 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:07,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1941551912, now seen corresponding path program 1 times [2024-11-23 23:11:07,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:07,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511940454] [2024-11-23 23:11:07,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:11:07,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:07,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511940454] [2024-11-23 23:11:07,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511940454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:07,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:07,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:11:07,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281341546] [2024-11-23 23:11:07,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:07,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:11:07,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:07,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:11:07,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:07,155 INFO L87 Difference]: Start difference. First operand 549 states and 806 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:07,346 INFO L93 Difference]: Finished difference Result 1001 states and 1453 transitions. [2024-11-23 23:11:07,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:11:07,346 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 209 [2024-11-23 23:11:07,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:07,349 INFO L225 Difference]: With dead ends: 1001 [2024-11-23 23:11:07,349 INFO L226 Difference]: Without dead ends: 606 [2024-11-23 23:11:07,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:07,350 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 40 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:07,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 329 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:11:07,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-23 23:11:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 543. [2024-11-23 23:11:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 467 states have (on average 1.4261241970021414) internal successors, (666), 468 states have internal predecessors, (666), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:11:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 794 transitions. [2024-11-23 23:11:07,472 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 794 transitions. Word has length 209 [2024-11-23 23:11:07,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:07,472 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 794 transitions. [2024-11-23 23:11:07,472 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 794 transitions. [2024-11-23 23:11:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 23:11:07,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:07,474 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:07,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-23 23:11:07,474 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:07,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:07,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1575214363, now seen corresponding path program 1 times [2024-11-23 23:11:07,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:07,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122556563] [2024-11-23 23:11:07,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:07,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:13,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-23 23:11:13,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:13,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122556563] [2024-11-23 23:11:13,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122556563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:13,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:13,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:11:13,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536191713] [2024-11-23 23:11:13,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:13,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:11:13,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:13,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:11:13,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:11:13,842 INFO L87 Difference]: Start difference. First operand 543 states and 794 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:14,451 INFO L93 Difference]: Finished difference Result 644 states and 918 transitions. [2024-11-23 23:11:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:11:14,451 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 209 [2024-11-23 23:11:14,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:14,453 INFO L225 Difference]: With dead ends: 644 [2024-11-23 23:11:14,453 INFO L226 Difference]: Without dead ends: 642 [2024-11-23 23:11:14,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:11:14,454 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 147 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:14,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1315 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:11:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-23 23:11:14,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 531. [2024-11-23 23:11:14,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 455 states have (on average 1.432967032967033) internal successors, (652), 456 states have internal predecessors, (652), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:11:14,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 780 transitions. [2024-11-23 23:11:14,563 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 780 transitions. Word has length 209 [2024-11-23 23:11:14,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:14,564 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 780 transitions. [2024-11-23 23:11:14,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-23 23:11:14,564 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 780 transitions. [2024-11-23 23:11:14,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 23:11:14,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:14,565 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:14,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-23 23:11:14,565 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:14,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash -574367443, now seen corresponding path program 1 times [2024-11-23 23:11:14,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:14,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896331264] [2024-11-23 23:11:14,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:14,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-23 23:11:15,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:15,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896331264] [2024-11-23 23:11:15,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896331264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:15,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537296102] [2024-11-23 23:11:15,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:15,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:15,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:15,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:11:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:15,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:11:15,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1278 proven. 48 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2024-11-23 23:11:15,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:16,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-23 23:11:16,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537296102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:11:16,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:11:16,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 20 [2024-11-23 23:11:16,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163365931] [2024-11-23 23:11:16,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:16,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:11:16,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:16,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:11:16,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:11:16,265 INFO L87 Difference]: Start difference. First operand 531 states and 780 transitions. Second operand has 20 states, 20 states have (on average 6.7) internal successors, (134), 20 states have internal predecessors, (134), 8 states have call successors, (69), 4 states have call predecessors, (69), 6 states have return successors, (71), 8 states have call predecessors, (71), 8 states have call successors, (71) [2024-11-23 23:11:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:17,571 INFO L93 Difference]: Finished difference Result 1049 states and 1502 transitions. [2024-11-23 23:11:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-23 23:11:17,572 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.7) internal successors, (134), 20 states have internal predecessors, (134), 8 states have call successors, (69), 4 states have call predecessors, (69), 6 states have return successors, (71), 8 states have call predecessors, (71), 8 states have call successors, (71) Word has length 210 [2024-11-23 23:11:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:17,574 INFO L225 Difference]: With dead ends: 1049 [2024-11-23 23:11:17,574 INFO L226 Difference]: Without dead ends: 618 [2024-11-23 23:11:17,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=447, Invalid=1359, Unknown=0, NotChecked=0, Total=1806 [2024-11-23 23:11:17,576 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 311 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:17,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 784 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:11:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-23 23:11:17,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 539. [2024-11-23 23:11:17,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 457 states have (on average 1.387308533916849) internal successors, (634), 458 states have internal predecessors, (634), 64 states have call successors, (64), 17 states have call predecessors, (64), 17 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:11:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 762 transitions. [2024-11-23 23:11:17,664 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 762 transitions. Word has length 210 [2024-11-23 23:11:17,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:17,665 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 762 transitions. [2024-11-23 23:11:17,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.7) internal successors, (134), 20 states have internal predecessors, (134), 8 states have call successors, (69), 4 states have call predecessors, (69), 6 states have return successors, (71), 8 states have call predecessors, (71), 8 states have call successors, (71) [2024-11-23 23:11:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 762 transitions. [2024-11-23 23:11:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 23:11:17,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:17,667 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:17,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:11:17,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:17,871 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:17,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:17,872 INFO L85 PathProgramCache]: Analyzing trace with hash 411289536, now seen corresponding path program 1 times [2024-11-23 23:11:17,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:17,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792012581] [2024-11-23 23:11:17,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:17,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-23 23:11:18,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:18,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792012581] [2024-11-23 23:11:18,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792012581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:18,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957148022] [2024-11-23 23:11:18,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:18,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:18,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:18,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:18,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:11:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:18,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 23:11:18,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 750 proven. 66 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2024-11-23 23:11:18,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-23 23:11:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957148022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:11:24,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:11:24,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 13] total 25 [2024-11-23 23:11:24,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864124529] [2024-11-23 23:11:24,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:24,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 23:11:24,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:24,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 23:11:24,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:11:24,312 INFO L87 Difference]: Start difference. First operand 539 states and 762 transitions. Second operand has 25 states, 25 states have (on average 4.92) internal successors, (123), 25 states have internal predecessors, (123), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2024-11-23 23:11:27,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:27,097 INFO L93 Difference]: Finished difference Result 1292 states and 1783 transitions. [2024-11-23 23:11:27,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-23 23:11:27,098 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 25 states have internal predecessors, (123), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 210 [2024-11-23 23:11:27,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:27,100 INFO L225 Difference]: With dead ends: 1292 [2024-11-23 23:11:27,100 INFO L226 Difference]: Without dead ends: 923 [2024-11-23 23:11:27,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=972, Invalid=2934, Unknown=0, NotChecked=0, Total=3906 [2024-11-23 23:11:27,102 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 463 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:27,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1770 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 23:11:27,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2024-11-23 23:11:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 545. [2024-11-23 23:11:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 463 states have (on average 1.3520518358531317) internal successors, (626), 464 states have internal predecessors, (626), 64 states have call successors, (64), 17 states have call predecessors, (64), 17 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:11:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 754 transitions. [2024-11-23 23:11:27,243 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 754 transitions. Word has length 210 [2024-11-23 23:11:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:27,244 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 754 transitions. [2024-11-23 23:11:27,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 25 states have internal predecessors, (123), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2024-11-23 23:11:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 754 transitions. [2024-11-23 23:11:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-23 23:11:27,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:27,246 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:27,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:11:27,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:27,446 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:27,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:27,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1314647180, now seen corresponding path program 1 times [2024-11-23 23:11:27,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:27,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341855672] [2024-11-23 23:11:27,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:27,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-23 23:11:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341855672] [2024-11-23 23:11:28,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341855672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728970093] [2024-11-23 23:11:28,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:28,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:28,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:28,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:28,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d64caa46-740b-4827-9db5-1f84d4c12db7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:11:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:28,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-23 23:11:28,339 INFO L279 TraceCheckSpWp]: Computing forward predicates...