./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-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_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/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_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/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_4a0064e0-1c5b-43fc-acea-f84abce527c2/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 2913f965e0d9fa4df5794a69da1eb9ae7e20a4f8b2461420582f4690c4751bfe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:08:54,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:08:54,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:08:54,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:08:54,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:08:54,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:08:54,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:08:54,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:08:54,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:08:54,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:08:54,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:08:54,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:08:54,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:08:54,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:08:54,480 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:08:54,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:08:54,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:08:54,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:08:54,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:08:54,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:08:54,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:08:54,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:08:54,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:08:54,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:08:54,482 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:08:54,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:08:54,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:08:54,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:08:54,483 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:08:54,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:08:54,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:08:54,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:08:54,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:54,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:08:54,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:08:54,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:08:54,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:08:54,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:54,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:08:54,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:08:54,485 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:08:54,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:08:54,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:08:54,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:08:54,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:08:54,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:08:54,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:08:54,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:08:54,486 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_4a0064e0-1c5b-43fc-acea-f84abce527c2/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 -> 2913f965e0d9fa4df5794a69da1eb9ae7e20a4f8b2461420582f4690c4751bfe [2024-11-24 01:08:54,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:08:54,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:08:54,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:08:54,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:08:54,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:08:54,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i [2024-11-24 01:08:58,002 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/data/7c79b55f5/a0ea57d724f54c2e823ff137c60ac780/FLAG17395a2e5 [2024-11-24 01:08:58,339 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:08:58,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i [2024-11-24 01:08:58,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/data/7c79b55f5/a0ea57d724f54c2e823ff137c60ac780/FLAG17395a2e5 [2024-11-24 01:08:58,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/data/7c79b55f5/a0ea57d724f54c2e823ff137c60ac780 [2024-11-24 01:08:58,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:08:58,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:08:58,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:08:58,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:08:58,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:08:58,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c7c010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58, skipping insertion in model container [2024-11-24 01:08:58,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:08:58,587 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_4a0064e0-1c5b-43fc-acea-f84abce527c2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i[919,932] [2024-11-24 01:08:58,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:08:58,707 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:08:58,721 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_4a0064e0-1c5b-43fc-acea-f84abce527c2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i[919,932] [2024-11-24 01:08:58,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:08:58,819 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:08:58,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58 WrapperNode [2024-11-24 01:08:58,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:08:58,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:08:58,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:08:58,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:08:58,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,927 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249 [2024-11-24 01:08:58,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:08:58,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:08:58,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:08:58,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:08:58,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,983 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]. [2024-11-24 01:08:58,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:58,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:59,005 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:59,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:59,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:59,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:59,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:59,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:08:59,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:08:59,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:08:59,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:08:59,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (1/1) ... [2024-11-24 01:08:59,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:59,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:08:59,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:08:59,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:08:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:08:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:08:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:08:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:08:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:08:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:08:59,212 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:08:59,214 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:08:59,910 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-24 01:08:59,910 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:08:59,923 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:08:59,923 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:08:59,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:08:59 BoogieIcfgContainer [2024-11-24 01:08:59,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:08:59,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:08:59,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:08:59,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:08:59,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:08:58" (1/3) ... [2024-11-24 01:08:59,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b66ecb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:08:59, skipping insertion in model container [2024-11-24 01:08:59,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:58" (2/3) ... [2024-11-24 01:08:59,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b66ecb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:08:59, skipping insertion in model container [2024-11-24 01:08:59,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:08:59" (3/3) ... [2024-11-24 01:08:59,936 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i [2024-11-24 01:08:59,956 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:08:59,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i that has 2 procedures, 106 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:09:00,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:09:00,061 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;@4547306f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:09:00,063 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:09:00,068 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) [2024-11-24 01:09:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-24 01:09:00,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:00,089 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] [2024-11-24 01:09:00,090 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:00,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash 774158255, now seen corresponding path program 1 times [2024-11-24 01:09:00,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:00,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502692453] [2024-11-24 01:09:00,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:00,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-24 01:09:00,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502692453] [2024-11-24 01:09:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502692453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:09:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252833057] [2024-11-24 01:09:00,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:00,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:00,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:00,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:09:00,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:09:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:00,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:09:00,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:09:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-24 01:09:01,071 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:09:01,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252833057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:01,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:09:01,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:09:01,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399305698] [2024-11-24 01:09:01,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:01,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:09:01,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:01,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:09:01,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:09:01,107 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) [2024-11-24 01:09:01,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:01,148 INFO L93 Difference]: Finished difference Result 205 states and 361 transitions. [2024-11-24 01:09:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:09:01,150 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 [2024-11-24 01:09:01,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:01,159 INFO L225 Difference]: With dead ends: 205 [2024-11-24 01:09:01,160 INFO L226 Difference]: Without dead ends: 102 [2024-11-24 01:09:01,164 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 [2024-11-24 01:09:01,168 INFO L435 NwaCegarLoop]: 161 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, 161 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 [2024-11-24 01:09:01,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:01,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-24 01:09:01,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-24 01:09:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 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) [2024-11-24 01:09:01,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 161 transitions. [2024-11-24 01:09:01,223 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 161 transitions. Word has length 202 [2024-11-24 01:09:01,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:01,224 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 161 transitions. [2024-11-24 01:09:01,224 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) [2024-11-24 01:09:01,224 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 161 transitions. [2024-11-24 01:09:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-24 01:09:01,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:01,229 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] [2024-11-24 01:09:01,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:09:01,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:09:01,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:01,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:01,451 INFO L85 PathProgramCache]: Analyzing trace with hash -927856859, now seen corresponding path program 1 times [2024-11-24 01:09:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:01,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74655189] [2024-11-24 01:09:01,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:01,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:09:02,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:02,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74655189] [2024-11-24 01:09:02,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74655189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:02,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:02,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:02,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464273369] [2024-11-24 01:09:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:02,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:02,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:02,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:02,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:02,064 INFO L87 Difference]: Start difference. First operand 102 states and 161 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-11-24 01:09:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:02,226 INFO L93 Difference]: Finished difference Result 283 states and 453 transitions. [2024-11-24 01:09:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:02,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 [2024-11-24 01:09:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:02,230 INFO L225 Difference]: With dead ends: 283 [2024-11-24 01:09:02,230 INFO L226 Difference]: Without dead ends: 184 [2024-11-24 01:09:02,231 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 [2024-11-24 01:09:02,232 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 76 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:02,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 295 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-24 01:09:02,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 169. [2024-11-24 01:09:02,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 104 states have internal predecessors, (142), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 01:09:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 266 transitions. [2024-11-24 01:09:02,267 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 266 transitions. Word has length 202 [2024-11-24 01:09:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:02,269 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 266 transitions. [2024-11-24 01:09:02,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-24 01:09:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 266 transitions. [2024-11-24 01:09:02,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 01:09:02,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:02,273 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] [2024-11-24 01:09:02,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:09:02,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:02,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:02,274 INFO L85 PathProgramCache]: Analyzing trace with hash -954396203, now seen corresponding path program 1 times [2024-11-24 01:09:02,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:02,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416161353] [2024-11-24 01:09:02,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:09:02,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:02,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416161353] [2024-11-24 01:09:02,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416161353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:02,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:02,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:02,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169032761] [2024-11-24 01:09:02,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:02,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:02,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:02,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:02,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:02,603 INFO L87 Difference]: Start difference. First operand 169 states and 266 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2024-11-24 01:09:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:02,852 INFO L93 Difference]: Finished difference Result 399 states and 625 transitions. [2024-11-24 01:09:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:02,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 [2024-11-24 01:09:02,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:02,862 INFO L225 Difference]: With dead ends: 399 [2024-11-24 01:09:02,863 INFO L226 Difference]: Without dead ends: 300 [2024-11-24 01:09:02,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:02,864 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 140 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:02,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 450 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:09:02,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-24 01:09:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 273. [2024-11-24 01:09:02,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 202 states have (on average 1.4851485148514851) internal successors, (300), 203 states have internal predecessors, (300), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-24 01:09:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 432 transitions. [2024-11-24 01:09:02,927 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 432 transitions. Word has length 204 [2024-11-24 01:09:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:02,928 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 432 transitions. [2024-11-24 01:09:02,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2024-11-24 01:09:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 432 transitions. [2024-11-24 01:09:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 01:09:02,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:02,932 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] [2024-11-24 01:09:02,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:09:02,933 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:02,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1347423213, now seen corresponding path program 1 times [2024-11-24 01:09:02,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:02,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816297686] [2024-11-24 01:09:02,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:02,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:09:03,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:03,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816297686] [2024-11-24 01:09:03,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816297686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:03,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:03,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:03,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527345623] [2024-11-24 01:09:03,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:03,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:03,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:03,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:03,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:03,372 INFO L87 Difference]: Start difference. First operand 273 states and 432 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2024-11-24 01:09:03,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:03,518 INFO L93 Difference]: Finished difference Result 505 states and 807 transitions. [2024-11-24 01:09:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:03,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 [2024-11-24 01:09:03,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:03,524 INFO L225 Difference]: With dead ends: 505 [2024-11-24 01:09:03,525 INFO L226 Difference]: Without dead ends: 317 [2024-11-24 01:09:03,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:03,528 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 74 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:03,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 442 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:03,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-24 01:09:03,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 273. [2024-11-24 01:09:03,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 202 states have (on average 1.4702970297029703) internal successors, (297), 203 states have internal predecessors, (297), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-24 01:09:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 429 transitions. [2024-11-24 01:09:03,607 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 429 transitions. Word has length 204 [2024-11-24 01:09:03,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:03,612 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 429 transitions. [2024-11-24 01:09:03,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2024-11-24 01:09:03,612 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 429 transitions. [2024-11-24 01:09:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-24 01:09:03,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:03,619 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] [2024-11-24 01:09:03,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:09:03,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:03,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:03,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2084473112, now seen corresponding path program 1 times [2024-11-24 01:09:03,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:03,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319893648] [2024-11-24 01:09:03,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:03,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:09:04,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319893648] [2024-11-24 01:09:04,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319893648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:04,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:04,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:04,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660906157] [2024-11-24 01:09:04,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:04,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:04,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:04,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:04,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:04,386 INFO L87 Difference]: Start difference. First operand 273 states and 429 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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) [2024-11-24 01:09:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:04,644 INFO L93 Difference]: Finished difference Result 504 states and 789 transitions. [2024-11-24 01:09:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:09:04,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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 [2024-11-24 01:09:04,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:04,650 INFO L225 Difference]: With dead ends: 504 [2024-11-24 01:09:04,650 INFO L226 Difference]: Without dead ends: 307 [2024-11-24 01:09:04,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:04,654 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 74 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:04,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 505 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:09:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-24 01:09:04,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 255. [2024-11-24 01:09:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 188 states have (on average 1.425531914893617) internal successors, (268), 188 states have internal predecessors, (268), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 01:09:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 392 transitions. [2024-11-24 01:09:04,706 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 392 transitions. Word has length 205 [2024-11-24 01:09:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:04,706 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 392 transitions. [2024-11-24 01:09:04,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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) [2024-11-24 01:09:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 392 transitions. [2024-11-24 01:09:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-24 01:09:04,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:04,712 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] [2024-11-24 01:09:04,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:09:04,713 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:04,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:04,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1116402596, now seen corresponding path program 1 times [2024-11-24 01:09:04,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:04,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334334571] [2024-11-24 01:09:04,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:04,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:09:06,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:06,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334334571] [2024-11-24 01:09:06,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334334571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:06,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:06,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:09:06,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509600455] [2024-11-24 01:09:06,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:06,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:09:06,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:06,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:09:06,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:09:06,694 INFO L87 Difference]: Start difference. First operand 255 states and 392 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) [2024-11-24 01:09:08,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:08,197 INFO L93 Difference]: Finished difference Result 690 states and 1053 transitions. [2024-11-24 01:09:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:09:08,198 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 [2024-11-24 01:09:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:08,202 INFO L225 Difference]: With dead ends: 690 [2024-11-24 01:09:08,202 INFO L226 Difference]: Without dead ends: 528 [2024-11-24 01:09:08,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:09:08,204 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 555 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:08,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 785 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:09:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-24 01:09:08,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 349. [2024-11-24 01:09:08,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 280 states have (on average 1.4428571428571428) internal successors, (404), 280 states have internal predecessors, (404), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 01:09:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 528 transitions. [2024-11-24 01:09:08,252 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 528 transitions. Word has length 205 [2024-11-24 01:09:08,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:08,253 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 528 transitions. [2024-11-24 01:09:08,253 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) [2024-11-24 01:09:08,253 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 528 transitions. [2024-11-24 01:09:08,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-24 01:09:08,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:08,257 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] [2024-11-24 01:09:08,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:09:08,258 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:08,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:08,258 INFO L85 PathProgramCache]: Analyzing trace with hash -105285346, now seen corresponding path program 1 times [2024-11-24 01:09:08,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:08,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282463088] [2024-11-24 01:09:08,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:08,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:36,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:09:36,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:36,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282463088] [2024-11-24 01:09:36,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282463088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:36,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:36,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:09:36,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659796215] [2024-11-24 01:09:36,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:36,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:09:36,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:36,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:09:36,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:09:36,927 INFO L87 Difference]: Start difference. First operand 349 states and 528 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), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:09:45,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:45,731 INFO L93 Difference]: Finished difference Result 742 states and 1121 transitions. [2024-11-24 01:09:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:09:45,732 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), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 205 [2024-11-24 01:09:45,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:45,740 INFO L225 Difference]: With dead ends: 742 [2024-11-24 01:09:45,740 INFO L226 Difference]: Without dead ends: 580 [2024-11-24 01:09:45,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:09:45,743 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 691 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:45,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 882 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:09:45,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-24 01:09:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 361. [2024-11-24 01:09:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 292 states have (on average 1.4417808219178083) internal successors, (421), 292 states have internal predecessors, (421), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 01:09:45,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 545 transitions. [2024-11-24 01:09:45,782 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 545 transitions. Word has length 205 [2024-11-24 01:09:45,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:45,783 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 545 transitions. [2024-11-24 01:09:45,783 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), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:09:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 545 transitions. [2024-11-24 01:09:45,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-24 01:09:45,786 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:45,786 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] [2024-11-24 01:09:45,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:09:45,787 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:45,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:45,788 INFO L85 PathProgramCache]: Analyzing trace with hash 152880092, now seen corresponding path program 1 times [2024-11-24 01:09:45,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:45,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969259205] [2024-11-24 01:09:45,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:45,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:09:48,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969259205] [2024-11-24 01:09:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969259205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:48,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:48,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:09:48,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913785047] [2024-11-24 01:09:48,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:48,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:09:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:48,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:09:48,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:09:48,227 INFO L87 Difference]: Start difference. First operand 361 states and 545 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 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) [2024-11-24 01:09:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:51,699 INFO L93 Difference]: Finished difference Result 762 states and 1149 transitions. [2024-11-24 01:09:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:09:51,700 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 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 205 [2024-11-24 01:09:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:51,704 INFO L225 Difference]: With dead ends: 762 [2024-11-24 01:09:51,704 INFO L226 Difference]: Without dead ends: 600 [2024-11-24 01:09:51,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:09:51,706 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 742 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:51,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1099 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:09:51,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-24 01:09:51,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 407. [2024-11-24 01:09:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 326 states have (on average 1.4325153374233128) internal successors, (467), 327 states have internal predecessors, (467), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 01:09:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 611 transitions. [2024-11-24 01:09:51,752 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 611 transitions. Word has length 205 [2024-11-24 01:09:51,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:51,753 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 611 transitions. [2024-11-24 01:09:51,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 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) [2024-11-24 01:09:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 611 transitions. [2024-11-24 01:09:51,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:09:51,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:51,756 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] [2024-11-24 01:09:51,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:09:51,757 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:51,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:51,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1170818138, now seen corresponding path program 1 times [2024-11-24 01:09:51,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:51,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795618369] [2024-11-24 01:09:51,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:51,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:10:05,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:05,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795618369] [2024-11-24 01:10:05,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795618369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:05,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:05,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:10:05,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020989369] [2024-11-24 01:10:05,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:05,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:10:05,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:05,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:10:05,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:10:05,282 INFO L87 Difference]: Start difference. First operand 407 states and 611 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 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) [2024-11-24 01:10:08,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:08,708 INFO L93 Difference]: Finished difference Result 808 states and 1201 transitions. [2024-11-24 01:10:08,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:10:08,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 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 [2024-11-24 01:10:08,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:08,715 INFO L225 Difference]: With dead ends: 808 [2024-11-24 01:10:08,715 INFO L226 Difference]: Without dead ends: 618 [2024-11-24 01:10:08,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:10:08,716 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 412 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:08,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 794 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:10:08,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-24 01:10:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 455. [2024-11-24 01:10:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 374 states have (on average 1.4385026737967914) internal successors, (538), 375 states have internal predecessors, (538), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 01:10:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 682 transitions. [2024-11-24 01:10:08,777 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 682 transitions. Word has length 206 [2024-11-24 01:10:08,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:08,778 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 682 transitions. [2024-11-24 01:10:08,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 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) [2024-11-24 01:10:08,778 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 682 transitions. [2024-11-24 01:10:08,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:10:08,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:08,783 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] [2024-11-24 01:10:08,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:10:08,784 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:08,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:08,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1428983576, now seen corresponding path program 1 times [2024-11-24 01:10:08,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:08,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206161585] [2024-11-24 01:10:08,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:08,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:10:09,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:09,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206161585] [2024-11-24 01:10:09,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206161585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:09,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:09,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:10:09,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691751963] [2024-11-24 01:10:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:09,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:10:09,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:09,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:10:09,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:10:09,546 INFO L87 Difference]: Start difference. First operand 455 states and 682 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2024-11-24 01:10:10,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:10,131 INFO L93 Difference]: Finished difference Result 741 states and 1119 transitions. [2024-11-24 01:10:10,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:10:10,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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 [2024-11-24 01:10:10,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:10,135 INFO L225 Difference]: With dead ends: 741 [2024-11-24 01:10:10,135 INFO L226 Difference]: Without dead ends: 509 [2024-11-24 01:10:10,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:10:10,136 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 188 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:10,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 603 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:10:10,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-24 01:10:10,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 471. [2024-11-24 01:10:10,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 390 states have (on average 1.4102564102564104) internal successors, (550), 391 states have internal predecessors, (550), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 01:10:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 694 transitions. [2024-11-24 01:10:10,183 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 694 transitions. Word has length 206 [2024-11-24 01:10:10,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:10,184 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 694 transitions. [2024-11-24 01:10:10,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2024-11-24 01:10:10,184 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 694 transitions. [2024-11-24 01:10:10,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:10:10,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:10,186 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] [2024-11-24 01:10:10,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:10:10,186 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:10,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2113031908, now seen corresponding path program 1 times [2024-11-24 01:10:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:10,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121032643] [2024-11-24 01:10:10,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:10:18,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:18,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121032643] [2024-11-24 01:10:18,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121032643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:18,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:18,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:10:18,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2233982] [2024-11-24 01:10:18,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:18,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:10:18,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:18,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:10:18,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:10:18,996 INFO L87 Difference]: Start difference. First operand 471 states and 694 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) [2024-11-24 01:10:23,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:23,390 INFO L93 Difference]: Finished difference Result 755 states and 1111 transitions. [2024-11-24 01:10:23,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:10:23,391 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 [2024-11-24 01:10:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:23,394 INFO L225 Difference]: With dead ends: 755 [2024-11-24 01:10:23,394 INFO L226 Difference]: Without dead ends: 565 [2024-11-24 01:10:23,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:10:23,396 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 295 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:23,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 810 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:10:23,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-24 01:10:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 471. [2024-11-24 01:10:23,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 390 states have (on average 1.4102564102564104) internal successors, (550), 391 states have internal predecessors, (550), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 01:10:23,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 694 transitions. [2024-11-24 01:10:23,446 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 694 transitions. Word has length 206 [2024-11-24 01:10:23,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:23,446 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 694 transitions. [2024-11-24 01:10:23,447 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) [2024-11-24 01:10:23,447 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 694 transitions. [2024-11-24 01:10:23,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:10:23,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:23,452 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] [2024-11-24 01:10:23,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:10:23,453 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:23,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:23,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1487967977, now seen corresponding path program 1 times [2024-11-24 01:10:23,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:23,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994566598] [2024-11-24 01:10:23,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:10:30,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:30,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994566598] [2024-11-24 01:10:30,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994566598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:30,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:30,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:10:30,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11894380] [2024-11-24 01:10:30,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:30,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:10:30,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:30,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:10:30,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:10:30,990 INFO L87 Difference]: Start difference. First operand 471 states and 694 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:10:33,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:33,764 INFO L93 Difference]: Finished difference Result 933 states and 1351 transitions. [2024-11-24 01:10:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:10:33,765 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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 [2024-11-24 01:10:33,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:33,770 INFO L225 Difference]: With dead ends: 933 [2024-11-24 01:10:33,770 INFO L226 Difference]: Without dead ends: 740 [2024-11-24 01:10:33,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:10:33,772 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 531 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:33,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 957 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:10:33,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-24 01:10:33,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 590. [2024-11-24 01:10:33,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 495 states have (on average 1.404040404040404) internal successors, (695), 497 states have internal predecessors, (695), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:10:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 863 transitions. [2024-11-24 01:10:33,839 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 863 transitions. Word has length 206 [2024-11-24 01:10:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:33,839 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 863 transitions. [2024-11-24 01:10:33,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:10:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 863 transitions. [2024-11-24 01:10:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:10:33,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:33,842 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] [2024-11-24 01:10:33,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:10:33,843 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:33,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:33,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1712907731, now seen corresponding path program 1 times [2024-11-24 01:10:33,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:33,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051997190] [2024-11-24 01:10:33,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:33,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:10:43,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:43,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051997190] [2024-11-24 01:10:43,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051997190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:43,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:43,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:10:43,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269724278] [2024-11-24 01:10:43,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:43,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:10:43,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:43,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:10:43,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:10:43,975 INFO L87 Difference]: Start difference. First operand 590 states and 863 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 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) [2024-11-24 01:10:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:47,478 INFO L93 Difference]: Finished difference Result 867 states and 1263 transitions. [2024-11-24 01:10:47,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:10:47,478 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 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 [2024-11-24 01:10:47,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:47,483 INFO L225 Difference]: With dead ends: 867 [2024-11-24 01:10:47,483 INFO L226 Difference]: Without dead ends: 670 [2024-11-24 01:10:47,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:10:47,487 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 742 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:47,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 926 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:10:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-24 01:10:47,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 597. [2024-11-24 01:10:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 502 states have (on average 1.404382470119522) internal successors, (705), 504 states have internal predecessors, (705), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:10:47,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 873 transitions. [2024-11-24 01:10:47,548 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 873 transitions. Word has length 206 [2024-11-24 01:10:47,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:47,549 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 873 transitions. [2024-11-24 01:10:47,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 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) [2024-11-24 01:10:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 873 transitions. [2024-11-24 01:10:47,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:10:47,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:47,551 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] [2024-11-24 01:10:47,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:10:47,551 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:47,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:47,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2105934741, now seen corresponding path program 1 times [2024-11-24 01:10:47,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:47,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934177129] [2024-11-24 01:10:47,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:47,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:10:54,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:54,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934177129] [2024-11-24 01:10:54,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934177129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:54,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:54,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:10:54,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335677119] [2024-11-24 01:10:54,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:54,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:10:54,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:54,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:10:54,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:10:54,956 INFO L87 Difference]: Start difference. First operand 597 states and 873 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 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) [2024-11-24 01:10:59,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:59,159 INFO L93 Difference]: Finished difference Result 864 states and 1261 transitions. [2024-11-24 01:10:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:10:59,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 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 [2024-11-24 01:10:59,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:59,164 INFO L225 Difference]: With dead ends: 864 [2024-11-24 01:10:59,164 INFO L226 Difference]: Without dead ends: 667 [2024-11-24 01:10:59,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=225, Invalid=767, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:10:59,166 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 474 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:59,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 876 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:10:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-24 01:10:59,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 602. [2024-11-24 01:10:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 507 states have (on average 1.4043392504930967) internal successors, (712), 509 states have internal predecessors, (712), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:10:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 880 transitions. [2024-11-24 01:10:59,226 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 880 transitions. Word has length 206 [2024-11-24 01:10:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:59,226 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 880 transitions. [2024-11-24 01:10:59,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 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) [2024-11-24 01:10:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 880 transitions. [2024-11-24 01:10:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:10:59,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:59,228 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] [2024-11-24 01:10:59,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:10:59,229 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:59,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash -803012951, now seen corresponding path program 1 times [2024-11-24 01:10:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:59,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475901500] [2024-11-24 01:10:59,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:59,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:07,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475901500] [2024-11-24 01:11:07,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475901500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:07,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:07,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:11:07,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748592280] [2024-11-24 01:11:07,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:07,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:11:07,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:07,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:11:07,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:11:07,665 INFO L87 Difference]: Start difference. First operand 602 states and 880 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:11:10,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:10,527 INFO L93 Difference]: Finished difference Result 896 states and 1304 transitions. [2024-11-24 01:11:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:11:10,528 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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 [2024-11-24 01:11:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:10,533 INFO L225 Difference]: With dead ends: 896 [2024-11-24 01:11:10,533 INFO L226 Difference]: Without dead ends: 699 [2024-11-24 01:11:10,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=231, Invalid=525, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:11:10,536 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 467 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:10,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1018 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:11:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-24 01:11:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 602. [2024-11-24 01:11:10,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 507 states have (on average 1.4043392504930967) internal successors, (712), 509 states have internal predecessors, (712), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 880 transitions. [2024-11-24 01:11:10,596 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 880 transitions. Word has length 206 [2024-11-24 01:11:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:10,596 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 880 transitions. [2024-11-24 01:11:10,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:11:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 880 transitions. [2024-11-24 01:11:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:11:10,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:10,599 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] [2024-11-24 01:11:10,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:11:10,599 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:10,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:10,600 INFO L85 PathProgramCache]: Analyzing trace with hash 291078637, now seen corresponding path program 1 times [2024-11-24 01:11:10,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:10,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151984929] [2024-11-24 01:11:10,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:10,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:10,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151984929] [2024-11-24 01:11:10,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151984929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:10,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:10,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:11:10,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913940293] [2024-11-24 01:11:10,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:10,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:11:10,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:10,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:11:10,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:11:10,840 INFO L87 Difference]: Start difference. First operand 602 states and 880 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2024-11-24 01:11:11,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:11,010 INFO L93 Difference]: Finished difference Result 979 states and 1430 transitions. [2024-11-24 01:11:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:11:11,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 [2024-11-24 01:11:11,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:11,015 INFO L225 Difference]: With dead ends: 979 [2024-11-24 01:11:11,015 INFO L226 Difference]: Without dead ends: 700 [2024-11-24 01:11:11,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:11:11,017 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 88 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:11,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 506 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:11:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-24 01:11:11,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 588. [2024-11-24 01:11:11,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 493 states have (on average 1.3874239350912778) internal successors, (684), 495 states have internal predecessors, (684), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:11,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 852 transitions. [2024-11-24 01:11:11,091 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 852 transitions. Word has length 206 [2024-11-24 01:11:11,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:11,092 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 852 transitions. [2024-11-24 01:11:11,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2024-11-24 01:11:11,092 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 852 transitions. [2024-11-24 01:11:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:11:11,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:11,095 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] [2024-11-24 01:11:11,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:11:11,096 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:11,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:11,096 INFO L85 PathProgramCache]: Analyzing trace with hash -101948373, now seen corresponding path program 1 times [2024-11-24 01:11:11,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:11,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031227661] [2024-11-24 01:11:11,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:11,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:17,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:17,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031227661] [2024-11-24 01:11:17,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031227661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:17,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:17,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:11:17,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575867504] [2024-11-24 01:11:17,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:17,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:11:17,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:17,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:11:17,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:11:17,011 INFO L87 Difference]: Start difference. First operand 588 states and 852 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:11:19,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:19,418 INFO L93 Difference]: Finished difference Result 870 states and 1257 transitions. [2024-11-24 01:11:19,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:11:19,419 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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 [2024-11-24 01:11:19,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:19,422 INFO L225 Difference]: With dead ends: 870 [2024-11-24 01:11:19,423 INFO L226 Difference]: Without dead ends: 673 [2024-11-24 01:11:19,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:11:19,424 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 475 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:19,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1036 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:11:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-24 01:11:19,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 591. [2024-11-24 01:11:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 496 states have (on average 1.3870967741935485) internal successors, (688), 498 states have internal predecessors, (688), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:19,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 856 transitions. [2024-11-24 01:11:19,487 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 856 transitions. Word has length 206 [2024-11-24 01:11:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:19,488 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 856 transitions. [2024-11-24 01:11:19,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:11:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 856 transitions. [2024-11-24 01:11:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:11:19,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:19,491 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] [2024-11-24 01:11:19,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:11:19,491 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:19,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:19,492 INFO L85 PathProgramCache]: Analyzing trace with hash 909168877, now seen corresponding path program 1 times [2024-11-24 01:11:19,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:19,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209370541] [2024-11-24 01:11:19,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:19,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:28,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:28,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209370541] [2024-11-24 01:11:28,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209370541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:28,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:28,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:11:28,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98452414] [2024-11-24 01:11:28,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:28,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:11:28,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:28,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:11:28,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:11:28,780 INFO L87 Difference]: Start difference. First operand 591 states and 856 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:11:31,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:31,544 INFO L93 Difference]: Finished difference Result 838 states and 1215 transitions. [2024-11-24 01:11:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:11:31,544 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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 [2024-11-24 01:11:31,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:31,547 INFO L225 Difference]: With dead ends: 838 [2024-11-24 01:11:31,547 INFO L226 Difference]: Without dead ends: 641 [2024-11-24 01:11:31,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:11:31,548 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 381 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:31,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 995 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:11:31,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-24 01:11:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 581. [2024-11-24 01:11:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 486 states have (on average 1.3868312757201646) internal successors, (674), 488 states have internal predecessors, (674), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 842 transitions. [2024-11-24 01:11:31,618 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 842 transitions. Word has length 206 [2024-11-24 01:11:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:31,619 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 842 transitions. [2024-11-24 01:11:31,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 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) [2024-11-24 01:11:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 842 transitions. [2024-11-24 01:11:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:11:31,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:31,622 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] [2024-11-24 01:11:31,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:11:31,622 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:31,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:31,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1633750551, now seen corresponding path program 1 times [2024-11-24 01:11:31,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:31,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050859051] [2024-11-24 01:11:31,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:31,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:32,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:32,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050859051] [2024-11-24 01:11:32,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050859051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:32,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:32,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:11:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45012348] [2024-11-24 01:11:32,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:32,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:11:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:32,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:11:32,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:11:32,952 INFO L87 Difference]: Start difference. First operand 581 states and 842 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2024-11-24 01:11:33,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:33,787 INFO L93 Difference]: Finished difference Result 996 states and 1437 transitions. [2024-11-24 01:11:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:11:33,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 [2024-11-24 01:11:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:33,793 INFO L225 Difference]: With dead ends: 996 [2024-11-24 01:11:33,793 INFO L226 Difference]: Without dead ends: 739 [2024-11-24 01:11:33,794 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 [2024-11-24 01:11:33,795 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 302 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:33,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 564 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:11:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-24 01:11:33,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 576. [2024-11-24 01:11:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 481 states have (on average 1.3825363825363826) internal successors, (665), 483 states have internal predecessors, (665), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 833 transitions. [2024-11-24 01:11:33,868 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 833 transitions. Word has length 207 [2024-11-24 01:11:33,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:33,869 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 833 transitions. [2024-11-24 01:11:33,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2024-11-24 01:11:33,870 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 833 transitions. [2024-11-24 01:11:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:11:33,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:33,872 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] [2024-11-24 01:11:33,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:11:33,872 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:33,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:33,873 INFO L85 PathProgramCache]: Analyzing trace with hash -539658963, now seen corresponding path program 1 times [2024-11-24 01:11:33,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:33,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718979679] [2024-11-24 01:11:33,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:33,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:40,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:40,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718979679] [2024-11-24 01:11:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718979679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:40,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:40,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:11:40,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145496111] [2024-11-24 01:11:40,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:11:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:40,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:11:40,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:11:40,548 INFO L87 Difference]: Start difference. First operand 576 states and 833 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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) [2024-11-24 01:11:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:41,292 INFO L93 Difference]: Finished difference Result 937 states and 1355 transitions. [2024-11-24 01:11:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:11:41,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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 [2024-11-24 01:11:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:41,295 INFO L225 Difference]: With dead ends: 937 [2024-11-24 01:11:41,296 INFO L226 Difference]: Without dead ends: 716 [2024-11-24 01:11:41,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:11:41,297 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 184 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:41,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 545 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:11:41,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-24 01:11:41,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 537. [2024-11-24 01:11:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 442 states have (on average 1.3891402714932126) internal successors, (614), 444 states have internal predecessors, (614), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 782 transitions. [2024-11-24 01:11:41,357 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 782 transitions. Word has length 207 [2024-11-24 01:11:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:41,357 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 782 transitions. [2024-11-24 01:11:41,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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) [2024-11-24 01:11:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 782 transitions. [2024-11-24 01:11:41,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:11:41,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:41,359 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] [2024-11-24 01:11:41,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:11:41,360 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:41,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash -622633301, now seen corresponding path program 1 times [2024-11-24 01:11:41,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:41,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713682195] [2024-11-24 01:11:41,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:46,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:46,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:46,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713682195] [2024-11-24 01:11:46,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713682195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:46,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:46,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:11:46,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803197902] [2024-11-24 01:11:46,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:46,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:11:46,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:46,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:11:46,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:11:46,532 INFO L87 Difference]: Start difference. First operand 537 states and 782 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 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) [2024-11-24 01:11:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:48,757 INFO L93 Difference]: Finished difference Result 1051 states and 1505 transitions. [2024-11-24 01:11:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:11:48,758 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 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 207 [2024-11-24 01:11:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:48,762 INFO L225 Difference]: With dead ends: 1051 [2024-11-24 01:11:48,762 INFO L226 Difference]: Without dead ends: 817 [2024-11-24 01:11:48,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:11:48,764 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 311 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:48,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 817 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:11:48,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-11-24 01:11:48,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 562. [2024-11-24 01:11:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 467 states have (on average 1.39186295503212) internal successors, (650), 469 states have internal predecessors, (650), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 818 transitions. [2024-11-24 01:11:48,826 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 818 transitions. Word has length 207 [2024-11-24 01:11:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:48,826 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 818 transitions. [2024-11-24 01:11:48,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 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) [2024-11-24 01:11:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 818 transitions. [2024-11-24 01:11:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:11:48,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:48,828 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] [2024-11-24 01:11:48,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:11:48,829 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:48,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:48,829 INFO L85 PathProgramCache]: Analyzing trace with hash 78431277, now seen corresponding path program 1 times [2024-11-24 01:11:48,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:48,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927494369] [2024-11-24 01:11:48,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:48,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:11:53,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:53,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927494369] [2024-11-24 01:11:53,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927494369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:53,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:53,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:11:53,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250251779] [2024-11-24 01:11:53,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:53,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:11:53,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:53,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:11:53,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:11:53,834 INFO L87 Difference]: Start difference. First operand 562 states and 818 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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) [2024-11-24 01:11:54,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:54,542 INFO L93 Difference]: Finished difference Result 995 states and 1435 transitions. [2024-11-24 01:11:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:11:54,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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 [2024-11-24 01:11:54,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:54,546 INFO L225 Difference]: With dead ends: 995 [2024-11-24 01:11:54,546 INFO L226 Difference]: Without dead ends: 761 [2024-11-24 01:11:54,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:11:54,549 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 178 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:54,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 669 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:11:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-24 01:11:54,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 567. [2024-11-24 01:11:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 472 states have (on average 1.3919491525423728) internal successors, (657), 474 states have internal predecessors, (657), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:11:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 825 transitions. [2024-11-24 01:11:54,611 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 825 transitions. Word has length 207 [2024-11-24 01:11:54,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:54,611 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 825 transitions. [2024-11-24 01:11:54,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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) [2024-11-24 01:11:54,612 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 825 transitions. [2024-11-24 01:11:54,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:11:54,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:54,613 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] [2024-11-24 01:11:54,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:11:54,614 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:54,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1381353067, now seen corresponding path program 1 times [2024-11-24 01:11:54,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:54,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603698513] [2024-11-24 01:11:54,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:54,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:12:02,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:02,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603698513] [2024-11-24 01:12:02,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603698513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:02,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:02,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:12:02,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117882493] [2024-11-24 01:12:02,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:02,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:12:02,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:02,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:12:02,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:12:02,703 INFO L87 Difference]: Start difference. First operand 567 states and 825 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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) [2024-11-24 01:12:03,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:03,474 INFO L93 Difference]: Finished difference Result 938 states and 1362 transitions. [2024-11-24 01:12:03,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:12:03,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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 [2024-11-24 01:12:03,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:03,477 INFO L225 Difference]: With dead ends: 938 [2024-11-24 01:12:03,477 INFO L226 Difference]: Without dead ends: 693 [2024-11-24 01:12:03,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:12:03,478 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 150 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:03,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 587 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:12:03,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-24 01:12:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 568. [2024-11-24 01:12:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 473 states have (on average 1.3932346723044398) internal successors, (659), 475 states have internal predecessors, (659), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:12:03,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 827 transitions. [2024-11-24 01:12:03,541 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 827 transitions. Word has length 207 [2024-11-24 01:12:03,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:03,541 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 827 transitions. [2024-11-24 01:12:03,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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) [2024-11-24 01:12:03,542 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 827 transitions. [2024-11-24 01:12:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:12:03,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:03,544 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] [2024-11-24 01:12:03,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:12:03,544 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:03,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:03,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2082417645, now seen corresponding path program 1 times [2024-11-24 01:12:03,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:03,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096996256] [2024-11-24 01:12:03,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:03,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:12:09,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:09,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096996256] [2024-11-24 01:12:09,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096996256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:09,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:09,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:12:09,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728711248] [2024-11-24 01:12:09,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:09,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:12:09,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:09,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:12:09,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:12:09,786 INFO L87 Difference]: Start difference. First operand 568 states and 827 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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) [2024-11-24 01:12:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:10,600 INFO L93 Difference]: Finished difference Result 905 states and 1318 transitions. [2024-11-24 01:12:10,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:12:10,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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 [2024-11-24 01:12:10,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:10,606 INFO L225 Difference]: With dead ends: 905 [2024-11-24 01:12:10,606 INFO L226 Difference]: Without dead ends: 659 [2024-11-24 01:12:10,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:12:10,608 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 154 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:10,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 654 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:12:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-24 01:12:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 541. [2024-11-24 01:12:10,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 446 states have (on average 1.390134529147982) internal successors, (620), 448 states have internal predecessors, (620), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:12:10,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 788 transitions. [2024-11-24 01:12:10,704 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 788 transitions. Word has length 207 [2024-11-24 01:12:10,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:10,705 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 788 transitions. [2024-11-24 01:12:10,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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) [2024-11-24 01:12:10,705 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 788 transitions. [2024-11-24 01:12:10,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:12:10,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:10,707 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] [2024-11-24 01:12:10,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:12:10,708 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:10,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1065849177, now seen corresponding path program 1 times [2024-11-24 01:12:10,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:10,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115951179] [2024-11-24 01:12:10,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:10,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:13:27,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:27,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115951179] [2024-11-24 01:13:27,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115951179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:27,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:27,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:13:27,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286803215] [2024-11-24 01:13:27,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:27,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:13:27,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:27,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:13:27,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:13:27,451 INFO L87 Difference]: Start difference. First operand 541 states and 788 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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) [2024-11-24 01:13:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:29,675 INFO L93 Difference]: Finished difference Result 676 states and 955 transitions. [2024-11-24 01:13:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:13:29,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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 [2024-11-24 01:13:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:29,678 INFO L225 Difference]: With dead ends: 676 [2024-11-24 01:13:29,678 INFO L226 Difference]: Without dead ends: 674 [2024-11-24 01:13:29,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:13:29,679 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 89 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:29,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 933 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:13:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-24 01:13:29,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 585. [2024-11-24 01:13:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 487 states have (on average 1.37782340862423) internal successors, (671), 489 states have internal predecessors, (671), 84 states have call successors, (84), 13 states have call predecessors, (84), 13 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:13:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 839 transitions. [2024-11-24 01:13:29,771 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 839 transitions. Word has length 207 [2024-11-24 01:13:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:29,772 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 839 transitions. [2024-11-24 01:13:29,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 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) [2024-11-24 01:13:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 839 transitions. [2024-11-24 01:13:29,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-24 01:13:29,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:29,774 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] [2024-11-24 01:13:29,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:13:29,774 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:29,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:29,775 INFO L85 PathProgramCache]: Analyzing trace with hash 309691364, now seen corresponding path program 1 times [2024-11-24 01:13:29,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:29,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383847139] [2024-11-24 01:13:29,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:29,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:13:29,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:29,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383847139] [2024-11-24 01:13:29,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383847139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:29,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:29,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:13:29,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109475105] [2024-11-24 01:13:29,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:29,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:13:29,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:29,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:13:29,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:13:29,882 INFO L87 Difference]: Start difference. First operand 585 states and 839 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2024-11-24 01:13:30,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:30,074 INFO L93 Difference]: Finished difference Result 975 states and 1382 transitions. [2024-11-24 01:13:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:13:30,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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 [2024-11-24 01:13:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:30,078 INFO L225 Difference]: With dead ends: 975 [2024-11-24 01:13:30,078 INFO L226 Difference]: Without dead ends: 702 [2024-11-24 01:13:30,079 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 [2024-11-24 01:13:30,080 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 41 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:30,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 319 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:13:30,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-24 01:13:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 604. [2024-11-24 01:13:30,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 493 states have (on average 1.359026369168357) internal successors, (670), 496 states have internal predecessors, (670), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 01:13:30,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 858 transitions. [2024-11-24 01:13:30,188 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 858 transitions. Word has length 208 [2024-11-24 01:13:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:30,189 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 858 transitions. [2024-11-24 01:13:30,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2024-11-24 01:13:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 858 transitions. [2024-11-24 01:13:30,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-24 01:13:30,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:30,191 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] [2024-11-24 01:13:30,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:13:30,192 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:30,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:30,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1982554589, now seen corresponding path program 1 times [2024-11-24 01:13:30,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:30,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259533771] [2024-11-24 01:13:30,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:30,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:14:19,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:19,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259533771] [2024-11-24 01:14:19,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259533771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:19,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:19,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:14:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669935931] [2024-11-24 01:14:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:19,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:14:19,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:19,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:14:19,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:14:19,561 INFO L87 Difference]: Start difference. First operand 604 states and 858 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) [2024-11-24 01:14:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:20,680 INFO L93 Difference]: Finished difference Result 777 states and 1065 transitions. [2024-11-24 01:14:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:14:20,681 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 [2024-11-24 01:14:20,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:20,683 INFO L225 Difference]: With dead ends: 777 [2024-11-24 01:14:20,683 INFO L226 Difference]: Without dead ends: 775 [2024-11-24 01:14:20,683 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 [2024-11-24 01:14:20,684 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 133 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:20,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1207 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:14:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-24 01:14:20,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 604. [2024-11-24 01:14:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 493 states have (on average 1.359026369168357) internal successors, (670), 496 states have internal predecessors, (670), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 01:14:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 858 transitions. [2024-11-24 01:14:20,803 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 858 transitions. Word has length 208 [2024-11-24 01:14:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:20,803 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 858 transitions. [2024-11-24 01:14:20,803 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) [2024-11-24 01:14:20,803 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 858 transitions. [2024-11-24 01:14:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-24 01:14:20,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:20,805 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] [2024-11-24 01:14:20,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:14:20,805 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:20,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:20,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1897765835, now seen corresponding path program 1 times [2024-11-24 01:14:20,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:20,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045330980] [2024-11-24 01:14:20,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:20,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:14:20,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:20,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045330980] [2024-11-24 01:14:20,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045330980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:20,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:20,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:14:20,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398931133] [2024-11-24 01:14:20,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:20,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:14:20,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:20,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:14:20,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:14:20,917 INFO L87 Difference]: Start difference. First operand 604 states and 858 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) [2024-11-24 01:14:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:21,097 INFO L93 Difference]: Finished difference Result 931 states and 1314 transitions. [2024-11-24 01:14:21,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:14:21,098 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 [2024-11-24 01:14:21,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:21,101 INFO L225 Difference]: With dead ends: 931 [2024-11-24 01:14:21,101 INFO L226 Difference]: Without dead ends: 649 [2024-11-24 01:14:21,102 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 [2024-11-24 01:14:21,103 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 48 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:21,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 293 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:14:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-24 01:14:21,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 509. [2024-11-24 01:14:21,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 422 states have (on average 1.3791469194312795) internal successors, (582), 423 states have internal predecessors, (582), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:14:21,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 730 transitions. [2024-11-24 01:14:21,186 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 730 transitions. Word has length 209 [2024-11-24 01:14:21,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:21,187 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 730 transitions. [2024-11-24 01:14:21,187 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) [2024-11-24 01:14:21,187 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 730 transitions. [2024-11-24 01:14:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-24 01:14:21,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:21,188 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] [2024-11-24 01:14:21,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:14:21,189 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:21,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:21,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1069236556, now seen corresponding path program 1 times [2024-11-24 01:14:21,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:21,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503019546] [2024-11-24 01:14:21,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:21,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:14:35,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:35,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503019546] [2024-11-24 01:14:35,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503019546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:35,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:35,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:14:35,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859000203] [2024-11-24 01:14:35,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:35,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:14:35,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:35,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:14:35,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:14:35,434 INFO L87 Difference]: Start difference. First operand 509 states and 730 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2024-11-24 01:14:36,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:36,702 INFO L93 Difference]: Finished difference Result 658 states and 905 transitions. [2024-11-24 01:14:36,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:14:36,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 [2024-11-24 01:14:36,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:36,705 INFO L225 Difference]: With dead ends: 658 [2024-11-24 01:14:36,705 INFO L226 Difference]: Without dead ends: 656 [2024-11-24 01:14:36,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:14:36,706 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 127 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:36,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1062 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:14:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-24 01:14:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 521. [2024-11-24 01:14:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 434 states have (on average 1.3755760368663594) internal successors, (597), 435 states have internal predecessors, (597), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:14:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 745 transitions. [2024-11-24 01:14:36,784 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 745 transitions. Word has length 209 [2024-11-24 01:14:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:36,785 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 745 transitions. [2024-11-24 01:14:36,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2024-11-24 01:14:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 745 transitions. [2024-11-24 01:14:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-24 01:14:36,786 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:36,787 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] [2024-11-24 01:14:36,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 01:14:36,787 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:36,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1736455562, now seen corresponding path program 1 times [2024-11-24 01:14:36,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:36,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521592945] [2024-11-24 01:14:36,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:15:53,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:15:53,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521592945] [2024-11-24 01:15:53,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521592945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:15:53,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:15:53,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:15:53,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633751364] [2024-11-24 01:15:53,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:15:53,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:15:53,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:15:53,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:15:53,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:15:53,828 INFO L87 Difference]: Start difference. First operand 521 states and 745 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) [2024-11-24 01:15:55,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:55,150 INFO L93 Difference]: Finished difference Result 641 states and 890 transitions. [2024-11-24 01:15:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:15:55,150 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 [2024-11-24 01:15:55,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:55,153 INFO L225 Difference]: With dead ends: 641 [2024-11-24 01:15:55,153 INFO L226 Difference]: Without dead ends: 639 [2024-11-24 01:15:55,153 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 [2024-11-24 01:15:55,154 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 132 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:55,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1519 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:15:55,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-24 01:15:55,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 513. [2024-11-24 01:15:55,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 426 states have (on average 1.380281690140845) internal successors, (588), 427 states have internal predecessors, (588), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:15:55,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 736 transitions. [2024-11-24 01:15:55,205 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 736 transitions. Word has length 209 [2024-11-24 01:15:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:15:55,205 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 736 transitions. [2024-11-24 01:15:55,205 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) [2024-11-24 01:15:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 736 transitions. [2024-11-24 01:15:55,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-24 01:15:55,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:15:55,206 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] [2024-11-24 01:15:55,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 01:15:55,206 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:15:55,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:15:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 501362570, now seen corresponding path program 1 times [2024-11-24 01:15:55,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:15:55,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842155520] [2024-11-24 01:15:55,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:55,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:15:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:16:45,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:45,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842155520] [2024-11-24 01:16:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842155520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:16:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:16:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:16:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509180231] [2024-11-24 01:16:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:16:45,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:16:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:16:45,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:16:45,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:16:45,957 INFO L87 Difference]: Start difference. First operand 513 states and 736 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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) [2024-11-24 01:16:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:16:47,163 INFO L93 Difference]: Finished difference Result 660 states and 912 transitions. [2024-11-24 01:16:47,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:16:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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 210 [2024-11-24 01:16:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:16:47,167 INFO L225 Difference]: With dead ends: 660 [2024-11-24 01:16:47,167 INFO L226 Difference]: Without dead ends: 658 [2024-11-24 01:16:47,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:16:47,167 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 104 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:16:47,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1532 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:16:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-24 01:16:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 529. [2024-11-24 01:16:47,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 442 states have (on average 1.3800904977375565) internal successors, (610), 443 states have internal predecessors, (610), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:16:47,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 758 transitions. [2024-11-24 01:16:47,235 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 758 transitions. Word has length 210 [2024-11-24 01:16:47,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:16:47,235 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 758 transitions. [2024-11-24 01:16:47,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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) [2024-11-24 01:16:47,235 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 758 transitions. [2024-11-24 01:16:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-24 01:16:47,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:16:47,237 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] [2024-11-24 01:16:47,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 01:16:47,237 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:16:47,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:16:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash -428983615, now seen corresponding path program 1 times [2024-11-24 01:16:47,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:16:47,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070559664] [2024-11-24 01:16:47,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:47,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:17:14,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:17:14,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070559664] [2024-11-24 01:17:14,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070559664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:17:14,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:17:14,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:17:14,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879269027] [2024-11-24 01:17:14,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:17:14,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:17:14,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:17:14,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:17:14,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:17:14,179 INFO L87 Difference]: Start difference. First operand 529 states and 758 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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) [2024-11-24 01:17:16,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:17:16,171 INFO L93 Difference]: Finished difference Result 638 states and 890 transitions. [2024-11-24 01:17:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:17:16,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 210 [2024-11-24 01:17:16,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:17:16,175 INFO L225 Difference]: With dead ends: 638 [2024-11-24 01:17:16,175 INFO L226 Difference]: Without dead ends: 636 [2024-11-24 01:17:16,176 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 [2024-11-24 01:17:16,180 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 85 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:17:16,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 935 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:17:16,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-24 01:17:16,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 532. [2024-11-24 01:17:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 445 states have (on average 1.3842696629213482) internal successors, (616), 446 states have internal predecessors, (616), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:17:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 764 transitions. [2024-11-24 01:17:16,252 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 764 transitions. Word has length 210 [2024-11-24 01:17:16,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:17:16,252 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 764 transitions. [2024-11-24 01:17:16,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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) [2024-11-24 01:17:16,253 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 764 transitions. [2024-11-24 01:17:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-24 01:17:16,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:17:16,254 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] [2024-11-24 01:17:16,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 01:17:16,254 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:17:16,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:17:16,255 INFO L85 PathProgramCache]: Analyzing trace with hash 277750517, now seen corresponding path program 1 times [2024-11-24 01:17:16,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:17:16,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100045379] [2024-11-24 01:17:16,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:16,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:17:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:17:16,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:17:16,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100045379] [2024-11-24 01:17:16,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100045379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:17:16,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:17:16,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:17:16,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112655469] [2024-11-24 01:17:16,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:17:16,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:17:16,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:17:16,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:17:16,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:17:16,348 INFO L87 Difference]: Start difference. First operand 532 states and 764 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-24 01:17:16,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:17:16,627 INFO L93 Difference]: Finished difference Result 904 states and 1278 transitions. [2024-11-24 01:17:16,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:17:16,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 211 [2024-11-24 01:17:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:17:16,632 INFO L225 Difference]: With dead ends: 904 [2024-11-24 01:17:16,632 INFO L226 Difference]: Without dead ends: 633 [2024-11-24 01:17:16,633 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 [2024-11-24 01:17:16,635 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 42 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:17:16,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 298 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:17:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-24 01:17:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 555. [2024-11-24 01:17:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 468 states have (on average 1.3696581196581197) internal successors, (641), 469 states have internal predecessors, (641), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:17:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 789 transitions. [2024-11-24 01:17:16,731 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 789 transitions. Word has length 211 [2024-11-24 01:17:16,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:17:16,731 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 789 transitions. [2024-11-24 01:17:16,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-24 01:17:16,732 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 789 transitions. [2024-11-24 01:17:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-24 01:17:16,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:17:16,735 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] [2024-11-24 01:17:16,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 01:17:16,735 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:17:16,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:17:16,736 INFO L85 PathProgramCache]: Analyzing trace with hash 76363184, now seen corresponding path program 1 times [2024-11-24 01:17:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:17:16,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411142369] [2024-11-24 01:17:16,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:16,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:17:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:17:16,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:17:16,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411142369] [2024-11-24 01:17:16,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411142369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:17:16,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:17:16,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:17:16,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798846551] [2024-11-24 01:17:16,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:17:16,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:17:16,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:17:16,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:17:16,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:17:16,834 INFO L87 Difference]: Start difference. First operand 555 states and 789 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-24 01:17:16,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:17:16,967 INFO L93 Difference]: Finished difference Result 920 states and 1292 transitions. [2024-11-24 01:17:16,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:17:16,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 211 [2024-11-24 01:17:16,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:17:16,970 INFO L225 Difference]: With dead ends: 920 [2024-11-24 01:17:16,970 INFO L226 Difference]: Without dead ends: 633 [2024-11-24 01:17:16,970 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 [2024-11-24 01:17:16,971 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 40 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:17:16,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 330 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:17:16,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-24 01:17:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 545. [2024-11-24 01:17:17,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 458 states have (on average 1.3624454148471616) internal successors, (624), 459 states have internal predecessors, (624), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:17:17,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 772 transitions. [2024-11-24 01:17:17,033 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 772 transitions. Word has length 211 [2024-11-24 01:17:17,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:17:17,033 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 772 transitions. [2024-11-24 01:17:17,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-24 01:17:17,033 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 772 transitions. [2024-11-24 01:17:17,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-24 01:17:17,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:17:17,035 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] [2024-11-24 01:17:17,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 01:17:17,036 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:17:17,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:17:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash -732605729, now seen corresponding path program 1 times [2024-11-24 01:17:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:17:17,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423694420] [2024-11-24 01:17:17,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:17,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:17:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:17:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:17:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423694420] [2024-11-24 01:17:23,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423694420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:17:23,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:17:23,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:17:23,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629940922] [2024-11-24 01:17:23,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:17:23,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:17:23,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:17:23,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:17:23,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:17:23,425 INFO L87 Difference]: Start difference. First operand 545 states and 772 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 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) [2024-11-24 01:17:24,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:17:24,195 INFO L93 Difference]: Finished difference Result 675 states and 926 transitions. [2024-11-24 01:17:24,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:17:24,196 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 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 211 [2024-11-24 01:17:24,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:17:24,198 INFO L225 Difference]: With dead ends: 675 [2024-11-24 01:17:24,198 INFO L226 Difference]: Without dead ends: 673 [2024-11-24 01:17:24,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:17:24,199 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 151 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:17:24,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1382 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:17:24,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-24 01:17:24,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 535. [2024-11-24 01:17:24,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 448 states have (on average 1.3683035714285714) internal successors, (613), 449 states have internal predecessors, (613), 74 states have call successors, (74), 12 states have call predecessors, (74), 12 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-24 01:17:24,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 761 transitions. [2024-11-24 01:17:24,255 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 761 transitions. Word has length 211 [2024-11-24 01:17:24,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:17:24,255 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 761 transitions. [2024-11-24 01:17:24,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 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) [2024-11-24 01:17:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 761 transitions. [2024-11-24 01:17:24,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-24 01:17:24,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:17:24,257 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, 1] [2024-11-24 01:17:24,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 01:17:24,257 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:17:24,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:17:24,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1734324133, now seen corresponding path program 1 times [2024-11-24 01:17:24,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:17:24,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205626946] [2024-11-24 01:17:24,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:24,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:17:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-24 01:17:24,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:17:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205626946] [2024-11-24 01:17:24,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205626946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:17:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109139409] [2024-11-24 01:17:24,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:24,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:17:24,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:17:24,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:17:24,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064e0-1c5b-43fc-acea-f84abce527c2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:17:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:25,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:17:25,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:18:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 750 proven. 66 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2024-11-24 01:18:40,814 INFO L312 TraceCheckSpWp]: Computing backward predicates...