./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.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_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/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_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/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_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/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 aa1b7e3020c9e54f93d45078f4a249ca3b737cc17c725ce83b71e2a4a5a42766 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:26:19,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:26:19,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:26:19,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:26:19,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:26:19,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:26:19,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:26:19,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:26:19,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:26:19,245 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:26:19,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:26:19,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:26:19,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:26:19,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:26:19,247 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:26:19,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:26:19,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:26:19,247 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:26:19,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:26:19,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:26:19,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:26:19,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:26:19,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:26:19,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:26:19,249 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:26:19,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:26:19,249 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:26:19,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:26:19,249 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:26:19,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:19,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:19,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:19,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:19,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:26:19,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:19,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:19,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:19,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:19,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:26:19,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:26:19,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:26:19,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:26:19,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:26:19,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:26:19,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:26:19,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:26:19,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:26:19,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:26:19,253 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_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/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 -> aa1b7e3020c9e54f93d45078f4a249ca3b737cc17c725ce83b71e2a4a5a42766 [2024-11-23 18:26:19,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:26:19,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:26:19,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:26:19,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:26:19,665 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:26:19,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.i [2024-11-23 18:26:22,993 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/data/4a6dbb053/799b9753c1b84f3bba8795efd1969276/FLAG2fb859f7f [2024-11-23 18:26:23,440 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:26:23,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.i [2024-11-23 18:26:23,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/data/4a6dbb053/799b9753c1b84f3bba8795efd1969276/FLAG2fb859f7f [2024-11-23 18:26:23,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/data/4a6dbb053/799b9753c1b84f3bba8795efd1969276 [2024-11-23 18:26:23,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:26:23,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:26:23,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:23,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:26:23,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:26:23,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:23,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29260e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23, skipping insertion in model container [2024-11-23 18:26:23,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:23,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:26:23,757 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_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.i[915,928] [2024-11-23 18:26:23,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:23,883 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:26:23,896 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_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.i[915,928] [2024-11-23 18:26:23,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:23,959 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:26:23,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23 WrapperNode [2024-11-23 18:26:23,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:23,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:23,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:26:23,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:26:23,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:23,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,023 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 180 [2024-11-23 18:26:24,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:24,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:26:24,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:26:24,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:26:24,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,059 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:26:24,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,068 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,074 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,076 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:26:24,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:26:24,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:26:24,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:26:24,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (1/1) ... [2024-11-23 18:26:24,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:24,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:24,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:26:24,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:26:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:26:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:26:24,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:26:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:26:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:26:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:26:24,287 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:26:24,290 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:26:24,841 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-23 18:26:24,841 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:26:24,854 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:26:24,855 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 18:26:24,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:24 BoogieIcfgContainer [2024-11-23 18:26:24,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:26:24,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:26:24,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:26:24,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:26:24,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:26:23" (1/3) ... [2024-11-23 18:26:24,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235bf03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:24, skipping insertion in model container [2024-11-23 18:26:24,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:23" (2/3) ... [2024-11-23 18:26:24,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235bf03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:24, skipping insertion in model container [2024-11-23 18:26:24,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:24" (3/3) ... [2024-11-23 18:26:24,868 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-34.i [2024-11-23 18:26:24,887 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:26:24,889 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-34.i that has 2 procedures, 72 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:26:24,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:26:24,974 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;@16b27a84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:26:24,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:26:24,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-23 18:26:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 18:26:24,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:24,997 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:24,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:25,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:25,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1237371207, now seen corresponding path program 1 times [2024-11-23 18:26:25,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:25,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676892862] [2024-11-23 18:26:25,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:25,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:25,436 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-23 18:26:25,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:25,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676892862] [2024-11-23 18:26:25,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676892862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:26:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627539999] [2024-11-23 18:26:25,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:25,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:25,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:25,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:26:25,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:26:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:25,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:26:25,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:26:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-23 18:26:25,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:26:25,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627539999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:25,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:26:25,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:26:25,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654396816] [2024-11-23 18:26:25,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:25,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:26:25,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:25,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:26:25,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:25,817 INFO L87 Difference]: Start difference. First operand has 72 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:26:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:25,850 INFO L93 Difference]: Finished difference Result 141 states and 228 transitions. [2024-11-23 18:26:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:26:25,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2024-11-23 18:26:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:25,861 INFO L225 Difference]: With dead ends: 141 [2024-11-23 18:26:25,861 INFO L226 Difference]: Without dead ends: 68 [2024-11-23 18:26:25,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:25,870 INFO L435 NwaCegarLoop]: 106 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, 106 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:25,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:26:25,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-23 18:26:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-23 18:26:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 53 states have internal predecessors, (76), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-23 18:26:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 102 transitions. [2024-11-23 18:26:25,919 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 102 transitions. Word has length 95 [2024-11-23 18:26:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:25,919 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 102 transitions. [2024-11-23 18:26:25,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:26:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 102 transitions. [2024-11-23 18:26:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 18:26:25,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:25,924 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:25,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 18:26:26,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e0b64b-6b68-46e8-8d9b-4ff583d73d1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:26,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:26,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:26,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1365102277, now seen corresponding path program 1 times [2024-11-23 18:26:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:26,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544406791] [2024-11-23 18:26:26,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:26,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:26:26,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:26,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544406791] [2024-11-23 18:26:26,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544406791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:26,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:26,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:26:26,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921657185] [2024-11-23 18:26:26,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:26,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:26:26,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:26,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:26:26,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:26:26,907 INFO L87 Difference]: Start difference. First operand 68 states and 102 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:27,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:27,145 INFO L93 Difference]: Finished difference Result 229 states and 346 transitions. [2024-11-23 18:26:27,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:26:27,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-23 18:26:27,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:27,150 INFO L225 Difference]: With dead ends: 229 [2024-11-23 18:26:27,150 INFO L226 Difference]: Without dead ends: 164 [2024-11-23 18:26:27,153 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 [2024-11-23 18:26:27,154 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 131 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:27,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 324 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:26:27,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-23 18:26:27,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 133. [2024-11-23 18:26:27,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 104 states have internal predecessors, (149), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-23 18:26:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 201 transitions. [2024-11-23 18:26:27,212 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 201 transitions. Word has length 95 [2024-11-23 18:26:27,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:27,213 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 201 transitions. [2024-11-23 18:26:27,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:27,213 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 201 transitions. [2024-11-23 18:26:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-23 18:26:27,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:27,218 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:27,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:26:27,218 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:27,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash -228754600, now seen corresponding path program 1 times [2024-11-23 18:26:27,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:27,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728973317] [2024-11-23 18:26:27,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:27,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:26:27,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:27,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728973317] [2024-11-23 18:26:27,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728973317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:27,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:27,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:26:27,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146790817] [2024-11-23 18:26:27,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:27,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:26:27,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:27,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:26:27,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:26:27,663 INFO L87 Difference]: Start difference. First operand 133 states and 201 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:28,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:28,036 INFO L93 Difference]: Finished difference Result 389 states and 587 transitions. [2024-11-23 18:26:28,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:26:28,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-23 18:26:28,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:28,044 INFO L225 Difference]: With dead ends: 389 [2024-11-23 18:26:28,044 INFO L226 Difference]: Without dead ends: 259 [2024-11-23 18:26:28,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:26:28,048 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 137 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:28,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 361 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:26:28,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-23 18:26:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 137. [2024-11-23 18:26:28,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 108 states have (on average 1.4166666666666667) internal successors, (153), 108 states have internal predecessors, (153), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-23 18:26:28,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 205 transitions. [2024-11-23 18:26:28,121 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 205 transitions. Word has length 96 [2024-11-23 18:26:28,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:28,122 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 205 transitions. [2024-11-23 18:26:28,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 205 transitions. [2024-11-23 18:26:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 18:26:28,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:28,124 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:28,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:26:28,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:28,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1588230275, now seen corresponding path program 1 times [2024-11-23 18:26:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:28,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778513173] [2024-11-23 18:26:28,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:28,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:26:45,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:45,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778513173] [2024-11-23 18:26:45,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778513173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:45,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:45,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 18:26:45,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184567221] [2024-11-23 18:26:45,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:45,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 18:26:45,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:45,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 18:26:45,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:26:45,479 INFO L87 Difference]: Start difference. First operand 137 states and 205 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:50,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:50,281 INFO L93 Difference]: Finished difference Result 590 states and 860 transitions. [2024-11-23 18:26:50,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 18:26:50,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2024-11-23 18:26:50,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:50,290 INFO L225 Difference]: With dead ends: 590 [2024-11-23 18:26:50,290 INFO L226 Difference]: Without dead ends: 456 [2024-11-23 18:26:50,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2024-11-23 18:26:50,292 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 802 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:50,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 547 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 18:26:50,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-23 18:26:50,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 200. [2024-11-23 18:26:50,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 157 states have (on average 1.4076433121019107) internal successors, (221), 157 states have internal predecessors, (221), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:26:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 299 transitions. [2024-11-23 18:26:50,353 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 299 transitions. Word has length 97 [2024-11-23 18:26:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:50,354 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 299 transitions. [2024-11-23 18:26:50,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 299 transitions. [2024-11-23 18:26:50,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 18:26:50,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:50,356 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:50,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:26:50,356 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:50,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash -931729659, now seen corresponding path program 1 times [2024-11-23 18:26:50,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:50,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291538115] [2024-11-23 18:26:50,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:50,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:26:53,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:53,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291538115] [2024-11-23 18:26:53,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291538115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:53,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:53,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:26:53,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924620114] [2024-11-23 18:26:53,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:53,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:26:53,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:53,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:26:53,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:26:53,036 INFO L87 Difference]: Start difference. First operand 200 states and 299 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:54,627 INFO L93 Difference]: Finished difference Result 510 states and 755 transitions. [2024-11-23 18:26:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:26:54,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2024-11-23 18:26:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:54,631 INFO L225 Difference]: With dead ends: 510 [2024-11-23 18:26:54,631 INFO L226 Difference]: Without dead ends: 376 [2024-11-23 18:26:54,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:26:54,633 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 404 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:54,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 354 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:26:54,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-23 18:26:54,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 214. [2024-11-23 18:26:54,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 171 states have (on average 1.409356725146199) internal successors, (241), 171 states have internal predecessors, (241), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:26:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 319 transitions. [2024-11-23 18:26:54,665 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 319 transitions. Word has length 97 [2024-11-23 18:26:54,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:54,665 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 319 transitions. [2024-11-23 18:26:54,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:54,666 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 319 transitions. [2024-11-23 18:26:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 18:26:54,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:54,667 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:54,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:26:54,668 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:54,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:54,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2026678651, now seen corresponding path program 1 times [2024-11-23 18:26:54,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:54,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229633494] [2024-11-23 18:26:54,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:54,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:26:57,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:57,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229633494] [2024-11-23 18:26:57,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229633494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:57,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:57,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:26:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703646959] [2024-11-23 18:26:57,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:57,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:26:57,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:57,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:26:57,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:26:57,028 INFO L87 Difference]: Start difference. First operand 214 states and 319 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:57,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:57,971 INFO L93 Difference]: Finished difference Result 586 states and 856 transitions. [2024-11-23 18:26:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:26:57,972 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2024-11-23 18:26:57,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:57,975 INFO L225 Difference]: With dead ends: 586 [2024-11-23 18:26:57,975 INFO L226 Difference]: Without dead ends: 409 [2024-11-23 18:26:57,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:26:57,976 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 340 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:57,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 356 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:26:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-23 18:26:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 327. [2024-11-23 18:26:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 284 states have (on average 1.426056338028169) internal successors, (405), 284 states have internal predecessors, (405), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:26:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 483 transitions. [2024-11-23 18:26:58,006 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 483 transitions. Word has length 97 [2024-11-23 18:26:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:58,007 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 483 transitions. [2024-11-23 18:26:58,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:26:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 483 transitions. [2024-11-23 18:26:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 18:26:58,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:58,008 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:58,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:26:58,009 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:58,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash 318097204, now seen corresponding path program 1 times [2024-11-23 18:26:58,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:58,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790619916] [2024-11-23 18:26:58,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:58,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:26:59,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:59,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790619916] [2024-11-23 18:26:59,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790619916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:59,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:59,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:26:59,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995751474] [2024-11-23 18:26:59,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:59,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:26:59,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:59,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:26:59,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:26:59,841 INFO L87 Difference]: Start difference. First operand 327 states and 483 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:00,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:00,394 INFO L93 Difference]: Finished difference Result 617 states and 903 transitions. [2024-11-23 18:27:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:27:00,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2024-11-23 18:27:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:00,398 INFO L225 Difference]: With dead ends: 617 [2024-11-23 18:27:00,398 INFO L226 Difference]: Without dead ends: 437 [2024-11-23 18:27:00,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:27:00,401 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 165 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:00,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 347 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:27:00,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-23 18:27:00,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 333. [2024-11-23 18:27:00,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 290 states have (on average 1.410344827586207) internal successors, (409), 290 states have internal predecessors, (409), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:27:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 487 transitions. [2024-11-23 18:27:00,438 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 487 transitions. Word has length 97 [2024-11-23 18:27:00,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:00,439 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 487 transitions. [2024-11-23 18:27:00,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 487 transitions. [2024-11-23 18:27:00,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 18:27:00,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:00,441 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:00,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:27:00,441 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:00,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash 577113025, now seen corresponding path program 1 times [2024-11-23 18:27:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:00,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422539200] [2024-11-23 18:27:00,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:00,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:00,772 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:27:00,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:00,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422539200] [2024-11-23 18:27:00,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422539200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:00,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:00,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:27:00,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651227654] [2024-11-23 18:27:00,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:00,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:27:00,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:00,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:27:00,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:27:00,774 INFO L87 Difference]: Start difference. First operand 333 states and 487 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:01,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:01,060 INFO L93 Difference]: Finished difference Result 529 states and 776 transitions. [2024-11-23 18:27:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:27:01,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2024-11-23 18:27:01,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:01,064 INFO L225 Difference]: With dead ends: 529 [2024-11-23 18:27:01,064 INFO L226 Difference]: Without dead ends: 335 [2024-11-23 18:27:01,065 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 [2024-11-23 18:27:01,066 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 83 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:01,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 233 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:27:01,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-23 18:27:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 305. [2024-11-23 18:27:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 262 states have (on average 1.3702290076335877) internal successors, (359), 262 states have internal predecessors, (359), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:27:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 437 transitions. [2024-11-23 18:27:01,103 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 437 transitions. Word has length 97 [2024-11-23 18:27:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:01,103 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 437 transitions. [2024-11-23 18:27:01,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:01,104 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 437 transitions. [2024-11-23 18:27:01,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:27:01,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:01,106 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:01,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:27:01,106 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:01,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1259952461, now seen corresponding path program 1 times [2024-11-23 18:27:01,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:01,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482008943] [2024-11-23 18:27:01,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:01,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:04,429 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:27:04,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:04,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482008943] [2024-11-23 18:27:04,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482008943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:04,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:04,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:27:04,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870340136] [2024-11-23 18:27:04,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:04,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:27:04,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:04,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:27:04,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:27:04,431 INFO L87 Difference]: Start difference. First operand 305 states and 437 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:06,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:06,396 INFO L93 Difference]: Finished difference Result 631 states and 898 transitions. [2024-11-23 18:27:06,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 18:27:06,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-23 18:27:06,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:06,400 INFO L225 Difference]: With dead ends: 631 [2024-11-23 18:27:06,400 INFO L226 Difference]: Without dead ends: 497 [2024-11-23 18:27:06,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:27:06,401 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 335 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:06,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 437 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:27:06,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-23 18:27:06,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 325. [2024-11-23 18:27:06,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 280 states have (on average 1.3607142857142858) internal successors, (381), 280 states have internal predecessors, (381), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:27:06,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 459 transitions. [2024-11-23 18:27:06,444 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 459 transitions. Word has length 98 [2024-11-23 18:27:06,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:06,444 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 459 transitions. [2024-11-23 18:27:06,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:06,445 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 459 transitions. [2024-11-23 18:27:06,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:27:06,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:06,446 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:06,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:27:06,447 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:06,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:06,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1104918979, now seen corresponding path program 1 times [2024-11-23 18:27:06,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:06,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517447092] [2024-11-23 18:27:06,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:06,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:27:14,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:14,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517447092] [2024-11-23 18:27:14,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517447092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:14,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:14,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 18:27:14,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001162175] [2024-11-23 18:27:14,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:14,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 18:27:14,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:14,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 18:27:14,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:27:14,227 INFO L87 Difference]: Start difference. First operand 325 states and 459 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:16,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:16,948 INFO L93 Difference]: Finished difference Result 727 states and 1009 transitions. [2024-11-23 18:27:16,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 18:27:16,951 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-23 18:27:16,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:16,954 INFO L225 Difference]: With dead ends: 727 [2024-11-23 18:27:16,954 INFO L226 Difference]: Without dead ends: 478 [2024-11-23 18:27:16,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2024-11-23 18:27:16,956 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 260 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:16,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 779 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 18:27:16,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-23 18:27:16,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 356. [2024-11-23 18:27:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 311 states have (on average 1.3569131832797428) internal successors, (422), 311 states have internal predecessors, (422), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:27:16,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 500 transitions. [2024-11-23 18:27:16,997 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 500 transitions. Word has length 98 [2024-11-23 18:27:16,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:16,997 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 500 transitions. [2024-11-23 18:27:16,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 500 transitions. [2024-11-23 18:27:16,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:27:16,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:16,999 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:17,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:27:17,000 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:17,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:17,000 INFO L85 PathProgramCache]: Analyzing trace with hash 493508910, now seen corresponding path program 1 times [2024-11-23 18:27:17,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:17,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239255749] [2024-11-23 18:27:17,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:17,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:27:41,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:41,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239255749] [2024-11-23 18:27:41,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239255749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:41,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:41,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 18:27:41,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135767993] [2024-11-23 18:27:41,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:41,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 18:27:41,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:41,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 18:27:41,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:27:41,876 INFO L87 Difference]: Start difference. First operand 356 states and 500 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:45,173 INFO L93 Difference]: Finished difference Result 608 states and 836 transitions. [2024-11-23 18:27:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 18:27:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-23 18:27:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:45,176 INFO L225 Difference]: With dead ends: 608 [2024-11-23 18:27:45,177 INFO L226 Difference]: Without dead ends: 458 [2024-11-23 18:27:45,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2024-11-23 18:27:45,179 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 370 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:45,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 556 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 18:27:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-23 18:27:45,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 346. [2024-11-23 18:27:45,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 301 states have (on average 1.3621262458471761) internal successors, (410), 301 states have internal predecessors, (410), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:27:45,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 488 transitions. [2024-11-23 18:27:45,224 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 488 transitions. Word has length 99 [2024-11-23 18:27:45,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:45,225 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 488 transitions. [2024-11-23 18:27:45,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 488 transitions. [2024-11-23 18:27:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:27:45,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:45,227 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:45,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:27:45,227 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:45,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:45,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1788633952, now seen corresponding path program 1 times [2024-11-23 18:27:45,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:45,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611005913] [2024-11-23 18:27:45,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:45,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:27:50,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:50,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611005913] [2024-11-23 18:27:50,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611005913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:50,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:50,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 18:27:50,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238285857] [2024-11-23 18:27:50,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:50,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 18:27:50,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:50,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 18:27:50,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:27:50,472 INFO L87 Difference]: Start difference. First operand 346 states and 488 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:56,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:56,619 INFO L93 Difference]: Finished difference Result 774 states and 1085 transitions. [2024-11-23 18:27:56,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 18:27:56,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-23 18:27:56,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:56,624 INFO L225 Difference]: With dead ends: 774 [2024-11-23 18:27:56,624 INFO L226 Difference]: Without dead ends: 624 [2024-11-23 18:27:56,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2024-11-23 18:27:56,626 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 530 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:56,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 480 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-23 18:27:56,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-23 18:27:56,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 356. [2024-11-23 18:27:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 311 states have (on average 1.3633440514469453) internal successors, (424), 311 states have internal predecessors, (424), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:27:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 502 transitions. [2024-11-23 18:27:56,707 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 502 transitions. Word has length 99 [2024-11-23 18:27:56,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:56,708 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 502 transitions. [2024-11-23 18:27:56,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:27:56,708 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 502 transitions. [2024-11-23 18:27:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:27:56,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:56,710 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:56,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:27:56,711 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:56,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:56,713 INFO L85 PathProgramCache]: Analyzing trace with hash -731325982, now seen corresponding path program 1 times [2024-11-23 18:27:56,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:56,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861565203] [2024-11-23 18:27:56,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:56,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:28:05,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861565203] [2024-11-23 18:28:05,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861565203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:05,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:05,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 18:28:05,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940881798] [2024-11-23 18:28:05,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:05,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 18:28:05,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:05,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 18:28:05,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:28:05,350 INFO L87 Difference]: Start difference. First operand 356 states and 502 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:28:17,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:28:17,928 INFO L93 Difference]: Finished difference Result 718 states and 1004 transitions. [2024-11-23 18:28:17,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:28:17,929 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-11-23 18:28:17,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:28:17,932 INFO L225 Difference]: With dead ends: 718 [2024-11-23 18:28:17,932 INFO L226 Difference]: Without dead ends: 560 [2024-11-23 18:28:17,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2024-11-23 18:28:17,934 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 376 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:28:17,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 830 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-23 18:28:17,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-23 18:28:17,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 380. [2024-11-23 18:28:17,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 335 states have (on average 1.3671641791044775) internal successors, (458), 335 states have internal predecessors, (458), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:28:17,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 536 transitions. [2024-11-23 18:28:17,983 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 536 transitions. Word has length 99 [2024-11-23 18:28:17,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:28:17,984 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 536 transitions. [2024-11-23 18:28:17,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:28:17,984 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 536 transitions. [2024-11-23 18:28:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:28:17,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:28:17,986 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:17,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:28:17,986 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:28:17,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:17,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1826274974, now seen corresponding path program 1 times [2024-11-23 18:28:17,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:17,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31151639] [2024-11-23 18:28:17,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:17,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:28:22,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:22,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31151639] [2024-11-23 18:28:22,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31151639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:22,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:22,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 18:28:22,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928405774] [2024-11-23 18:28:22,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:22,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 18:28:22,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:22,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 18:28:22,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:28:22,835 INFO L87 Difference]: Start difference. First operand 380 states and 536 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:28:25,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:28:25,828 INFO L93 Difference]: Finished difference Result 891 states and 1248 transitions. [2024-11-23 18:28:25,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 18:28:25,829 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-23 18:28:25,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:28:25,832 INFO L225 Difference]: With dead ends: 891 [2024-11-23 18:28:25,832 INFO L226 Difference]: Without dead ends: 715 [2024-11-23 18:28:25,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:28:25,834 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 404 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:28:25,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 557 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 18:28:25,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-23 18:28:25,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 446. [2024-11-23 18:28:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 401 states have (on average 1.374064837905237) internal successors, (551), 401 states have internal predecessors, (551), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:28:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 629 transitions. [2024-11-23 18:28:25,906 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 629 transitions. Word has length 99 [2024-11-23 18:28:25,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:28:25,906 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 629 transitions. [2024-11-23 18:28:25,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:28:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 629 transitions. [2024-11-23 18:28:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:28:25,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:28:25,909 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:25,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:28:25,909 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:28:25,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash -51267612, now seen corresponding path program 1 times [2024-11-23 18:28:25,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:25,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225961029] [2024-11-23 18:28:25,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:25,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:28:32,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:32,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225961029] [2024-11-23 18:28:32,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225961029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:32,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:32,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 18:28:32,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97161385] [2024-11-23 18:28:32,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:32,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 18:28:32,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:32,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 18:28:32,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:28:32,681 INFO L87 Difference]: Start difference. First operand 446 states and 629 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:28:38,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:28:38,993 INFO L93 Difference]: Finished difference Result 908 states and 1232 transitions. [2024-11-23 18:28:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:28:38,994 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-11-23 18:28:38,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:28:38,997 INFO L225 Difference]: With dead ends: 908 [2024-11-23 18:28:38,997 INFO L226 Difference]: Without dead ends: 687 [2024-11-23 18:28:38,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2024-11-23 18:28:38,999 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 298 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:28:39,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 805 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-23 18:28:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-23 18:28:39,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 434. [2024-11-23 18:28:39,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 389 states have (on average 1.3573264781491003) internal successors, (528), 389 states have internal predecessors, (528), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:28:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 606 transitions. [2024-11-23 18:28:39,074 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 606 transitions. Word has length 99 [2024-11-23 18:28:39,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:28:39,074 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 606 transitions. [2024-11-23 18:28:39,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:28:39,075 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 606 transitions. [2024-11-23 18:28:39,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-23 18:28:39,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:28:39,077 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:39,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:28:39,077 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:28:39,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:39,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1702251001, now seen corresponding path program 1 times [2024-11-23 18:28:39,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:39,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526096812] [2024-11-23 18:28:39,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:39,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:29:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:29:29,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:29:29,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526096812] [2024-11-23 18:29:29,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526096812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:29:29,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:29:29,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 18:29:29,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344066860] [2024-11-23 18:29:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:29:29,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 18:29:29,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:29:29,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 18:29:29,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:29:29,052 INFO L87 Difference]: Start difference. First operand 434 states and 606 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:29:30,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:29:30,466 INFO L93 Difference]: Finished difference Result 774 states and 1051 transitions. [2024-11-23 18:29:30,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 18:29:30,467 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-11-23 18:29:30,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:29:30,470 INFO L225 Difference]: With dead ends: 774 [2024-11-23 18:29:30,471 INFO L226 Difference]: Without dead ends: 772 [2024-11-23 18:29:30,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-11-23 18:29:30,472 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 341 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:29:30,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 764 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:29:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-11-23 18:29:30,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 507. [2024-11-23 18:29:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 462 states have (on average 1.3506493506493507) internal successors, (624), 462 states have internal predecessors, (624), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:29:30,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 702 transitions. [2024-11-23 18:29:30,531 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 702 transitions. Word has length 100 [2024-11-23 18:29:30,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:29:30,531 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 702 transitions. [2024-11-23 18:29:30,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:29:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 702 transitions. [2024-11-23 18:29:30,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-23 18:29:30,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:29:30,533 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:29:30,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:29:30,534 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:29:30,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:29:30,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1775067845, now seen corresponding path program 1 times [2024-11-23 18:29:30,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:29:30,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274828704] [2024-11-23 18:29:30,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:29:30,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:29:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:30:19,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:19,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274828704] [2024-11-23 18:30:19,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274828704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:19,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:19,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 18:30:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398776468] [2024-11-23 18:30:19,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:19,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 18:30:19,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:19,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 18:30:19,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:30:19,073 INFO L87 Difference]: Start difference. First operand 507 states and 702 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:30:20,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:20,860 INFO L93 Difference]: Finished difference Result 812 states and 1099 transitions. [2024-11-23 18:30:20,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 18:30:20,861 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-11-23 18:30:20,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:20,864 INFO L225 Difference]: With dead ends: 812 [2024-11-23 18:30:20,864 INFO L226 Difference]: Without dead ends: 810 [2024-11-23 18:30:20,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:30:20,865 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 231 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:20,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 799 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 18:30:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-23 18:30:20,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 576. [2024-11-23 18:30:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 531 states have (on average 1.3333333333333333) internal successors, (708), 531 states have internal predecessors, (708), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:30:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 786 transitions. [2024-11-23 18:30:20,921 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 786 transitions. Word has length 100 [2024-11-23 18:30:20,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:20,921 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 786 transitions. [2024-11-23 18:30:20,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:30:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 786 transitions. [2024-11-23 18:30:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-23 18:30:20,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:20,926 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:20,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 18:30:20,926 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:20,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:20,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549175, now seen corresponding path program 1 times [2024-11-23 18:30:20,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:20,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395541028] [2024-11-23 18:30:20,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:20,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:30:21,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:21,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395541028] [2024-11-23 18:30:21,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395541028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:21,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:21,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:30:21,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612564840] [2024-11-23 18:30:21,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:21,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:30:21,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:21,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:30:21,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:30:21,046 INFO L87 Difference]: Start difference. First operand 576 states and 786 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:21,184 INFO L93 Difference]: Finished difference Result 926 states and 1271 transitions. [2024-11-23 18:30:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:30:21,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-23 18:30:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:21,187 INFO L225 Difference]: With dead ends: 926 [2024-11-23 18:30:21,187 INFO L226 Difference]: Without dead ends: 583 [2024-11-23 18:30:21,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:30:21,189 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:21,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 375 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:30:21,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-23 18:30:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 553. [2024-11-23 18:30:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 508 states have (on average 1.3346456692913387) internal successors, (678), 508 states have internal predecessors, (678), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:30:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 756 transitions. [2024-11-23 18:30:21,241 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 756 transitions. Word has length 100 [2024-11-23 18:30:21,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:21,242 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 756 transitions. [2024-11-23 18:30:21,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 756 transitions. [2024-11-23 18:30:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-23 18:30:21,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:21,243 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:21,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 18:30:21,244 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:21,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash -813243156, now seen corresponding path program 1 times [2024-11-23 18:30:21,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:21,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959632235] [2024-11-23 18:30:21,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:21,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:30:25,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:25,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959632235] [2024-11-23 18:30:25,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959632235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:25,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:25,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 18:30:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717089089] [2024-11-23 18:30:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:25,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:30:25,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:25,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:30:25,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:30:25,035 INFO L87 Difference]: Start difference. First operand 553 states and 756 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:27,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:27,604 INFO L93 Difference]: Finished difference Result 993 states and 1372 transitions. [2024-11-23 18:30:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:30:27,605 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-23 18:30:27,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:27,608 INFO L225 Difference]: With dead ends: 993 [2024-11-23 18:30:27,608 INFO L226 Difference]: Without dead ends: 841 [2024-11-23 18:30:27,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2024-11-23 18:30:27,609 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 360 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:27,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 459 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:30:27,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-23 18:30:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 625. [2024-11-23 18:30:27,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 580 states have (on average 1.353448275862069) internal successors, (785), 580 states have internal predecessors, (785), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:30:27,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 863 transitions. [2024-11-23 18:30:27,664 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 863 transitions. Word has length 100 [2024-11-23 18:30:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:27,665 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 863 transitions. [2024-11-23 18:30:27,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 863 transitions. [2024-11-23 18:30:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-23 18:30:27,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:27,667 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:27,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 18:30:27,667 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:27,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash -133184786, now seen corresponding path program 1 times [2024-11-23 18:30:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:27,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290620003] [2024-11-23 18:30:27,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:27,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:30:30,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:30,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290620003] [2024-11-23 18:30:30,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290620003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:30,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:30,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 18:30:30,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802432201] [2024-11-23 18:30:30,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:30,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:30:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:30,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:30:30,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:30:30,833 INFO L87 Difference]: Start difference. First operand 625 states and 863 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:33,360 INFO L93 Difference]: Finished difference Result 1018 states and 1392 transitions. [2024-11-23 18:30:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:30:33,361 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-23 18:30:33,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:33,364 INFO L225 Difference]: With dead ends: 1018 [2024-11-23 18:30:33,364 INFO L226 Difference]: Without dead ends: 802 [2024-11-23 18:30:33,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2024-11-23 18:30:33,365 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 281 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:33,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 476 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 18:30:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-23 18:30:33,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 609. [2024-11-23 18:30:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 564 states have (on average 1.3563829787234043) internal successors, (765), 564 states have internal predecessors, (765), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:30:33,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 843 transitions. [2024-11-23 18:30:33,418 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 843 transitions. Word has length 100 [2024-11-23 18:30:33,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:33,419 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 843 transitions. [2024-11-23 18:30:33,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 843 transitions. [2024-11-23 18:30:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-23 18:30:33,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:33,420 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:33,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 18:30:33,421 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:33,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:33,421 INFO L85 PathProgramCache]: Analyzing trace with hash 657539218, now seen corresponding path program 1 times [2024-11-23 18:30:33,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:33,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571329350] [2024-11-23 18:30:33,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:33,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:37,454 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:30:37,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:37,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571329350] [2024-11-23 18:30:37,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571329350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:37,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:37,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 18:30:37,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981958420] [2024-11-23 18:30:37,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:37,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:30:37,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:37,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:30:37,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:30:37,456 INFO L87 Difference]: Start difference. First operand 609 states and 843 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:40,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:40,393 INFO L93 Difference]: Finished difference Result 979 states and 1372 transitions. [2024-11-23 18:30:40,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:30:40,394 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-23 18:30:40,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:40,396 INFO L225 Difference]: With dead ends: 979 [2024-11-23 18:30:40,396 INFO L226 Difference]: Without dead ends: 771 [2024-11-23 18:30:40,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-11-23 18:30:40,397 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 410 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:40,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 353 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:30:40,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-23 18:30:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 603. [2024-11-23 18:30:40,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 558 states have (on average 1.353046594982079) internal successors, (755), 558 states have internal predecessors, (755), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:30:40,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 833 transitions. [2024-11-23 18:30:40,453 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 833 transitions. Word has length 100 [2024-11-23 18:30:40,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:40,453 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 833 transitions. [2024-11-23 18:30:40,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:30:40,453 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 833 transitions. [2024-11-23 18:30:40,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 18:30:40,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:40,455 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:40,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 18:30:40,455 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1786074883, now seen corresponding path program 1 times [2024-11-23 18:30:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373324591] [2024-11-23 18:30:40,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:31:29,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:29,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373324591] [2024-11-23 18:31:29,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373324591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:29,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:29,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 18:31:29,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455952129] [2024-11-23 18:31:29,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:29,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 18:31:29,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:29,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 18:31:29,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:31:29,831 INFO L87 Difference]: Start difference. First operand 603 states and 833 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:31:32,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:32,850 INFO L93 Difference]: Finished difference Result 875 states and 1201 transitions. [2024-11-23 18:31:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 18:31:32,855 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-23 18:31:32,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:32,858 INFO L225 Difference]: With dead ends: 875 [2024-11-23 18:31:32,858 INFO L226 Difference]: Without dead ends: 873 [2024-11-23 18:31:32,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-23 18:31:32,862 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 515 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:32,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 563 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:31:32,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-23 18:31:32,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 643. [2024-11-23 18:31:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 598 states have (on average 1.3612040133779264) internal successors, (814), 598 states have internal predecessors, (814), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:31:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 892 transitions. [2024-11-23 18:31:32,921 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 892 transitions. Word has length 101 [2024-11-23 18:31:32,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:32,921 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 892 transitions. [2024-11-23 18:31:32,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:31:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 892 transitions. [2024-11-23 18:31:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 18:31:32,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:32,923 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:32,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 18:31:32,924 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:32,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1497775163, now seen corresponding path program 1 times [2024-11-23 18:31:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:32,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815149718] [2024-11-23 18:31:32,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:31:32,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:32,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815149718] [2024-11-23 18:31:32,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815149718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:32,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:32,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:31:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824660666] [2024-11-23 18:31:32,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:32,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:31:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:32,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:31:32,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:31:32,994 INFO L87 Difference]: Start difference. First operand 643 states and 892 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:31:33,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:33,056 INFO L93 Difference]: Finished difference Result 1019 states and 1425 transitions. [2024-11-23 18:31:33,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:31:33,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-11-23 18:31:33,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:33,059 INFO L225 Difference]: With dead ends: 1019 [2024-11-23 18:31:33,059 INFO L226 Difference]: Without dead ends: 689 [2024-11-23 18:31:33,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:31:33,061 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 10 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:33,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 191 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:31:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-23 18:31:33,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 632. [2024-11-23 18:31:33,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 587 states have (on average 1.3356047700170357) internal successors, (784), 587 states have internal predecessors, (784), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:31:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 862 transitions. [2024-11-23 18:31:33,118 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 862 transitions. Word has length 101 [2024-11-23 18:31:33,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:33,118 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 862 transitions. [2024-11-23 18:31:33,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:31:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 862 transitions. [2024-11-23 18:31:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 18:31:33,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:33,120 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:33,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 18:31:33,121 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:33,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:33,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1363373057, now seen corresponding path program 1 times [2024-11-23 18:31:33,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:33,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545456] [2024-11-23 18:31:33,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:33,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:22,890 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:32:22,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:22,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545456] [2024-11-23 18:32:22,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:22,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:22,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 18:32:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456654363] [2024-11-23 18:32:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:22,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 18:32:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:22,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 18:32:22,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:32:22,892 INFO L87 Difference]: Start difference. First operand 632 states and 862 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:32:25,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:25,861 INFO L93 Difference]: Finished difference Result 831 states and 1116 transitions. [2024-11-23 18:32:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 18:32:25,861 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-23 18:32:25,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:25,865 INFO L225 Difference]: With dead ends: 831 [2024-11-23 18:32:25,865 INFO L226 Difference]: Without dead ends: 829 [2024-11-23 18:32:25,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2024-11-23 18:32:25,867 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 324 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:25,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 586 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:32:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-23 18:32:25,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 661. [2024-11-23 18:32:25,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 616 states have (on average 1.3392857142857142) internal successors, (825), 616 states have internal predecessors, (825), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:32:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 903 transitions. [2024-11-23 18:32:25,926 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 903 transitions. Word has length 101 [2024-11-23 18:32:25,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:25,927 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 903 transitions. [2024-11-23 18:32:25,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:32:25,927 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 903 transitions. [2024-11-23 18:32:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 18:32:25,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:25,930 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:25,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 18:32:25,931 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:25,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:25,931 INFO L85 PathProgramCache]: Analyzing trace with hash -192085813, now seen corresponding path program 1 times [2024-11-23 18:32:25,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:25,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746505602] [2024-11-23 18:32:25,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:25,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:32:37,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746505602] [2024-11-23 18:32:37,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746505602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:37,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:37,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 18:32:37,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507557214] [2024-11-23 18:32:37,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:37,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 18:32:37,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:37,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 18:32:37,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:32:37,394 INFO L87 Difference]: Start difference. First operand 661 states and 903 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:32:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:43,433 INFO L93 Difference]: Finished difference Result 1303 states and 1786 transitions. [2024-11-23 18:32:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 18:32:43,434 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-11-23 18:32:43,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:43,437 INFO L225 Difference]: With dead ends: 1303 [2024-11-23 18:32:43,437 INFO L226 Difference]: Without dead ends: 1065 [2024-11-23 18:32:43,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-23 18:32:43,438 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 873 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:43,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 520 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-23 18:32:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-23 18:32:43,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 627. [2024-11-23 18:32:43,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 582 states have (on average 1.331615120274914) internal successors, (775), 582 states have internal predecessors, (775), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 18:32:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 853 transitions. [2024-11-23 18:32:43,509 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 853 transitions. Word has length 101 [2024-11-23 18:32:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:43,509 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 853 transitions. [2024-11-23 18:32:43,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:32:43,510 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 853 transitions. [2024-11-23 18:32:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 18:32:43,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:43,511 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:43,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 18:32:43,512 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:43,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1582921549, now seen corresponding path program 1 times [2024-11-23 18:32:43,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:43,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758706910] [2024-11-23 18:32:43,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:43,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:32:51,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:51,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758706910] [2024-11-23 18:32:51,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758706910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:51,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:51,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 18:32:51,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7876560] [2024-11-23 18:32:51,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:51,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 18:32:51,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:51,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 18:32:51,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:32:51,809 INFO L87 Difference]: Start difference. First operand 627 states and 853 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:32:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:57,200 INFO L93 Difference]: Finished difference Result 1857 states and 2562 transitions. [2024-11-23 18:32:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 18:32:57,200 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-11-23 18:32:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:57,204 INFO L225 Difference]: With dead ends: 1857 [2024-11-23 18:32:57,204 INFO L226 Difference]: Without dead ends: 1629 [2024-11-23 18:32:57,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=218, Invalid=774, Unknown=0, NotChecked=0, Total=992 [2024-11-23 18:32:57,206 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 788 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:57,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 762 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-23 18:32:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2024-11-23 18:32:57,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 925. [2024-11-23 18:32:57,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 850 states have (on average 1.3423529411764705) internal successors, (1141), 850 states have internal predecessors, (1141), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:32:57,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1271 transitions. [2024-11-23 18:32:57,308 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1271 transitions. Word has length 101 [2024-11-23 18:32:57,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:57,308 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1271 transitions. [2024-11-23 18:32:57,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:32:57,308 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1271 transitions. [2024-11-23 18:32:57,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 18:32:57,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:57,310 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:57,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 18:32:57,313 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:57,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2031987377, now seen corresponding path program 1 times [2024-11-23 18:32:57,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:57,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402666727] [2024-11-23 18:32:57,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:14,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:14,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402666727] [2024-11-23 18:33:14,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402666727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:14,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:14,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 18:33:14,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014391978] [2024-11-23 18:33:14,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:14,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 18:33:14,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:14,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 18:33:14,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:33:14,855 INFO L87 Difference]: Start difference. First operand 925 states and 1271 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:19,939 INFO L93 Difference]: Finished difference Result 1587 states and 2188 transitions. [2024-11-23 18:33:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 18:33:19,940 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-11-23 18:33:19,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:19,942 INFO L225 Difference]: With dead ends: 1587 [2024-11-23 18:33:19,942 INFO L226 Difference]: Without dead ends: 1153 [2024-11-23 18:33:19,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2024-11-23 18:33:19,944 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 344 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:19,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 552 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 18:33:19,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-11-23 18:33:20,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 893. [2024-11-23 18:33:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 818 states have (on average 1.3337408312958434) internal successors, (1091), 818 states have internal predecessors, (1091), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1221 transitions. [2024-11-23 18:33:20,010 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1221 transitions. Word has length 101 [2024-11-23 18:33:20,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:20,010 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1221 transitions. [2024-11-23 18:33:20,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1221 transitions. [2024-11-23 18:33:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 18:33:20,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:20,012 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:20,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 18:33:20,013 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:20,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:20,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1767374907, now seen corresponding path program 1 times [2024-11-23 18:33:20,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:20,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597435253] [2024-11-23 18:33:20,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:20,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:20,376 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:20,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:20,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597435253] [2024-11-23 18:33:20,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597435253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:20,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:20,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:33:20,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614038103] [2024-11-23 18:33:20,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:20,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:33:20,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:20,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:33:20,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:33:20,378 INFO L87 Difference]: Start difference. First operand 893 states and 1221 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:20,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:20,949 INFO L93 Difference]: Finished difference Result 1435 states and 1976 transitions. [2024-11-23 18:33:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:33:20,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 102 [2024-11-23 18:33:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:20,952 INFO L225 Difference]: With dead ends: 1435 [2024-11-23 18:33:20,953 INFO L226 Difference]: Without dead ends: 997 [2024-11-23 18:33:20,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:33:20,955 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 155 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:20,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 341 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:33:20,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-23 18:33:21,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 889. [2024-11-23 18:33:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 814 states have (on average 1.3255528255528255) internal successors, (1079), 814 states have internal predecessors, (1079), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1209 transitions. [2024-11-23 18:33:21,047 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1209 transitions. Word has length 102 [2024-11-23 18:33:21,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:21,047 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1209 transitions. [2024-11-23 18:33:21,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:21,048 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1209 transitions. [2024-11-23 18:33:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 18:33:21,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:21,049 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:21,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 18:33:21,049 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:21,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:21,050 INFO L85 PathProgramCache]: Analyzing trace with hash 439127485, now seen corresponding path program 1 times [2024-11-23 18:33:21,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:21,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862889396] [2024-11-23 18:33:21,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:21,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:21,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:21,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862889396] [2024-11-23 18:33:21,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862889396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:21,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:21,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:33:21,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759291521] [2024-11-23 18:33:21,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:21,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:33:21,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:21,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:33:21,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:33:21,536 INFO L87 Difference]: Start difference. First operand 889 states and 1209 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:21,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:21,997 INFO L93 Difference]: Finished difference Result 1501 states and 2044 transitions. [2024-11-23 18:33:21,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:21,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 102 [2024-11-23 18:33:21,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:22,002 INFO L225 Difference]: With dead ends: 1501 [2024-11-23 18:33:22,002 INFO L226 Difference]: Without dead ends: 946 [2024-11-23 18:33:22,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:33:22,004 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 93 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:22,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 260 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:33:22,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-23 18:33:22,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 888. [2024-11-23 18:33:22,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 813 states have (on average 1.3247232472324724) internal successors, (1077), 813 states have internal predecessors, (1077), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1207 transitions. [2024-11-23 18:33:22,100 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1207 transitions. Word has length 102 [2024-11-23 18:33:22,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:22,100 INFO L471 AbstractCegarLoop]: Abstraction has 888 states and 1207 transitions. [2024-11-23 18:33:22,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1207 transitions. [2024-11-23 18:33:22,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 18:33:22,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:22,102 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:22,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 18:33:22,103 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:22,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:22,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1543772928, now seen corresponding path program 1 times [2024-11-23 18:33:22,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:22,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829320772] [2024-11-23 18:33:22,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:22,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:22,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:22,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829320772] [2024-11-23 18:33:22,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829320772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:22,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:22,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:33:22,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506330919] [2024-11-23 18:33:22,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:22,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:33:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:22,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:33:22,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:33:22,184 INFO L87 Difference]: Start difference. First operand 888 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:22,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:22,401 INFO L93 Difference]: Finished difference Result 1581 states and 2190 transitions. [2024-11-23 18:33:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:33:22,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2024-11-23 18:33:22,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:22,406 INFO L225 Difference]: With dead ends: 1581 [2024-11-23 18:33:22,406 INFO L226 Difference]: Without dead ends: 1027 [2024-11-23 18:33:22,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:33:22,409 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 55 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:22,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 174 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:33:22,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-23 18:33:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 903. [2024-11-23 18:33:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 828 states have (on average 1.3429951690821256) internal successors, (1112), 828 states have internal predecessors, (1112), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1242 transitions. [2024-11-23 18:33:22,499 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1242 transitions. Word has length 104 [2024-11-23 18:33:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:22,500 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1242 transitions. [2024-11-23 18:33:22,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:22,500 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1242 transitions. [2024-11-23 18:33:22,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 18:33:22,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:22,501 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:22,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 18:33:22,502 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:22,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:22,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1125265000, now seen corresponding path program 1 times [2024-11-23 18:33:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:22,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373532266] [2024-11-23 18:33:22,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:22,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:22,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:22,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373532266] [2024-11-23 18:33:22,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373532266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:22,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:22,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:33:22,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462431347] [2024-11-23 18:33:22,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:22,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:33:22,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:22,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:33:22,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:33:22,799 INFO L87 Difference]: Start difference. First operand 903 states and 1242 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:23,330 INFO L93 Difference]: Finished difference Result 1666 states and 2287 transitions. [2024-11-23 18:33:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:33:23,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-23 18:33:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:23,334 INFO L225 Difference]: With dead ends: 1666 [2024-11-23 18:33:23,334 INFO L226 Difference]: Without dead ends: 1090 [2024-11-23 18:33:23,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:33:23,335 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 110 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:23,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 441 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:33:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-23 18:33:23,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 954. [2024-11-23 18:33:23,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 879 states have (on average 1.3344709897610922) internal successors, (1173), 879 states have internal predecessors, (1173), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1303 transitions. [2024-11-23 18:33:23,394 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1303 transitions. Word has length 105 [2024-11-23 18:33:23,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:23,394 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1303 transitions. [2024-11-23 18:33:23,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:23,395 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1303 transitions. [2024-11-23 18:33:23,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 18:33:23,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:23,401 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:23,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 18:33:23,401 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:23,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:23,402 INFO L85 PathProgramCache]: Analyzing trace with hash 892001908, now seen corresponding path program 1 times [2024-11-23 18:33:23,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:23,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165504157] [2024-11-23 18:33:23,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:23,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:23,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:23,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165504157] [2024-11-23 18:33:23,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165504157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:23,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:23,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:33:23,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33488399] [2024-11-23 18:33:23,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:23,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:33:23,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:23,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:33:23,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:33:23,674 INFO L87 Difference]: Start difference. First operand 954 states and 1303 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:24,215 INFO L93 Difference]: Finished difference Result 1684 states and 2304 transitions. [2024-11-23 18:33:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:33:24,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-23 18:33:24,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:24,219 INFO L225 Difference]: With dead ends: 1684 [2024-11-23 18:33:24,219 INFO L226 Difference]: Without dead ends: 1092 [2024-11-23 18:33:24,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:33:24,221 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 119 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:24,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 451 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:33:24,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-23 18:33:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 941. [2024-11-23 18:33:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 866 states have (on average 1.3302540415704387) internal successors, (1152), 866 states have internal predecessors, (1152), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:24,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1282 transitions. [2024-11-23 18:33:24,321 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1282 transitions. Word has length 105 [2024-11-23 18:33:24,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:24,322 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1282 transitions. [2024-11-23 18:33:24,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:24,322 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1282 transitions. [2024-11-23 18:33:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 18:33:24,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:24,324 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:24,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 18:33:24,324 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:24,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash -452526011, now seen corresponding path program 1 times [2024-11-23 18:33:24,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:24,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271113254] [2024-11-23 18:33:24,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:24,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:24,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271113254] [2024-11-23 18:33:24,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271113254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:24,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:24,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:33:24,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978308075] [2024-11-23 18:33:24,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:24,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:33:24,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:24,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:33:24,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:33:24,517 INFO L87 Difference]: Start difference. First operand 941 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:24,945 INFO L93 Difference]: Finished difference Result 1571 states and 2170 transitions. [2024-11-23 18:33:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:24,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2024-11-23 18:33:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:24,950 INFO L225 Difference]: With dead ends: 1571 [2024-11-23 18:33:24,951 INFO L226 Difference]: Without dead ends: 936 [2024-11-23 18:33:24,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:33:24,953 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 84 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:24,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 280 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:33:24,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2024-11-23 18:33:25,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 882. [2024-11-23 18:33:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 807 states have (on average 1.339529120198265) internal successors, (1081), 807 states have internal predecessors, (1081), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1211 transitions. [2024-11-23 18:33:25,051 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1211 transitions. Word has length 108 [2024-11-23 18:33:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:25,051 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1211 transitions. [2024-11-23 18:33:25,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1211 transitions. [2024-11-23 18:33:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 18:33:25,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:25,053 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:25,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 18:33:25,054 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:25,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:25,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1180045540, now seen corresponding path program 1 times [2024-11-23 18:33:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:25,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521948959] [2024-11-23 18:33:25,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:33:27,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:27,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521948959] [2024-11-23 18:33:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521948959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:27,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 18:33:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240705352] [2024-11-23 18:33:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:27,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 18:33:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:27,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 18:33:27,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:33:27,723 INFO L87 Difference]: Start difference. First operand 882 states and 1211 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:29,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:29,513 INFO L93 Difference]: Finished difference Result 1610 states and 2208 transitions. [2024-11-23 18:33:29,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 18:33:29,514 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2024-11-23 18:33:29,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:29,516 INFO L225 Difference]: With dead ends: 1610 [2024-11-23 18:33:29,517 INFO L226 Difference]: Without dead ends: 1030 [2024-11-23 18:33:29,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:33:29,518 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 430 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:29,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 498 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:33:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-23 18:33:29,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 926. [2024-11-23 18:33:29,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 851 states have (on average 1.3219741480611047) internal successors, (1125), 851 states have internal predecessors, (1125), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:33:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1255 transitions. [2024-11-23 18:33:29,608 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1255 transitions. Word has length 108 [2024-11-23 18:33:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:29,608 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1255 transitions. [2024-11-23 18:33:29,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:33:29,608 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1255 transitions. [2024-11-23 18:33:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 18:33:29,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:29,609 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:29,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 18:33:29,610 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:29,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:29,610 INFO L85 PathProgramCache]: Analyzing trace with hash 158977186, now seen corresponding path program 1 times [2024-11-23 18:33:29,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:29,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778722915] [2024-11-23 18:33:29,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:29,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:34:09,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:09,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778722915] [2024-11-23 18:34:09,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778722915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:09,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:09,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-23 18:34:09,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346270073] [2024-11-23 18:34:09,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:09,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 18:34:09,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:09,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 18:34:09,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:34:09,308 INFO L87 Difference]: Start difference. First operand 926 states and 1255 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:34:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:15,547 INFO L93 Difference]: Finished difference Result 1137 states and 1480 transitions. [2024-11-23 18:34:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 18:34:15,548 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-23 18:34:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:15,552 INFO L225 Difference]: With dead ends: 1137 [2024-11-23 18:34:15,552 INFO L226 Difference]: Without dead ends: 1135 [2024-11-23 18:34:15,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=420, Invalid=1650, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 18:34:15,553 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 474 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:15,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 583 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 18:34:15,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-23 18:34:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 938. [2024-11-23 18:34:15,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 863 states have (on average 1.3198146002317497) internal successors, (1139), 863 states have internal predecessors, (1139), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:34:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1269 transitions. [2024-11-23 18:34:15,616 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1269 transitions. Word has length 108 [2024-11-23 18:34:15,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:15,616 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1269 transitions. [2024-11-23 18:34:15,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:34:15,617 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1269 transitions. [2024-11-23 18:34:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 18:34:15,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:15,618 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:15,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 18:34:15,618 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:15,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:15,619 INFO L85 PathProgramCache]: Analyzing trace with hash 221016800, now seen corresponding path program 1 times [2024-11-23 18:34:15,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:15,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605467620] [2024-11-23 18:34:15,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:15,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:34:54,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:54,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605467620] [2024-11-23 18:34:54,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605467620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:54,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:54,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-23 18:34:54,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558598277] [2024-11-23 18:34:54,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:54,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 18:34:54,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:54,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 18:34:54,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:34:54,142 INFO L87 Difference]: Start difference. First operand 938 states and 1269 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:34:57,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:34:57,666 INFO L93 Difference]: Finished difference Result 1106 states and 1449 transitions. [2024-11-23 18:34:57,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 18:34:57,667 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-23 18:34:57,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:34:57,672 INFO L225 Difference]: With dead ends: 1106 [2024-11-23 18:34:57,672 INFO L226 Difference]: Without dead ends: 1104 [2024-11-23 18:34:57,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-11-23 18:34:57,674 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 338 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:34:57,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 560 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 18:34:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2024-11-23 18:34:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 950. [2024-11-23 18:34:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 875 states have (on average 1.3177142857142856) internal successors, (1153), 875 states have internal predecessors, (1153), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:34:57,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1283 transitions. [2024-11-23 18:34:57,743 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1283 transitions. Word has length 108 [2024-11-23 18:34:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:34:57,744 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1283 transitions. [2024-11-23 18:34:57,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:34:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1283 transitions. [2024-11-23 18:34:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 18:34:57,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:34:57,745 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:34:57,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 18:34:57,746 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:34:57,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:34:57,746 INFO L85 PathProgramCache]: Analyzing trace with hash 3734054, now seen corresponding path program 1 times [2024-11-23 18:34:57,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:34:57,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944360506] [2024-11-23 18:34:57,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:34:57,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:34:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:34:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:34:58,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:34:58,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944360506] [2024-11-23 18:34:58,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944360506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:34:58,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:34:58,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:34:58,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558911585] [2024-11-23 18:34:58,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:34:58,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:34:58,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:34:58,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:34:58,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:34:58,533 INFO L87 Difference]: Start difference. First operand 950 states and 1283 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:35:00,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:00,414 INFO L93 Difference]: Finished difference Result 1712 states and 2311 transitions. [2024-11-23 18:35:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 18:35:00,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2024-11-23 18:35:00,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:00,420 INFO L225 Difference]: With dead ends: 1712 [2024-11-23 18:35:00,420 INFO L226 Difference]: Without dead ends: 1112 [2024-11-23 18:35:00,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-23 18:35:00,422 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 147 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:00,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 729 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 18:35:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-11-23 18:35:00,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 938. [2024-11-23 18:35:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 863 states have (on average 1.3151796060254926) internal successors, (1135), 863 states have internal predecessors, (1135), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:35:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1265 transitions. [2024-11-23 18:35:00,484 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1265 transitions. Word has length 108 [2024-11-23 18:35:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:00,484 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1265 transitions. [2024-11-23 18:35:00,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:35:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1265 transitions. [2024-11-23 18:35:00,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 18:35:00,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:00,486 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:00,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-23 18:35:00,486 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:00,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:00,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1925059598, now seen corresponding path program 1 times [2024-11-23 18:35:00,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:00,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734136959] [2024-11-23 18:35:00,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:00,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:55,760 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:35:55,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:55,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734136959] [2024-11-23 18:35:55,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734136959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:55,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:55,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-23 18:35:55,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682495297] [2024-11-23 18:35:55,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:55,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 18:35:55,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:55,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 18:35:55,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-23 18:35:55,762 INFO L87 Difference]: Start difference. First operand 938 states and 1265 transitions. Second operand has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:36:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:04,601 INFO L93 Difference]: Finished difference Result 1103 states and 1437 transitions. [2024-11-23 18:36:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-23 18:36:04,602 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-23 18:36:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:04,606 INFO L225 Difference]: With dead ends: 1103 [2024-11-23 18:36:04,606 INFO L226 Difference]: Without dead ends: 1101 [2024-11-23 18:36:04,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=523, Invalid=2027, Unknown=0, NotChecked=0, Total=2550 [2024-11-23 18:36:04,607 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 371 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:04,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 739 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-23 18:36:04,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-23 18:36:04,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 950. [2024-11-23 18:36:04,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 875 states have (on average 1.3131428571428572) internal successors, (1149), 875 states have internal predecessors, (1149), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:36:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1279 transitions. [2024-11-23 18:36:04,686 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1279 transitions. Word has length 109 [2024-11-23 18:36:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:04,686 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1279 transitions. [2024-11-23 18:36:04,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:36:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1279 transitions. [2024-11-23 18:36:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 18:36:04,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:04,688 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:04,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 18:36:04,688 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:04,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1831564, now seen corresponding path program 1 times [2024-11-23 18:36:04,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:04,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820808061] [2024-11-23 18:36:04,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:04,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:57,814 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:36:57,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:57,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820808061] [2024-11-23 18:36:57,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820808061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:57,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:57,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-23 18:36:57,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802757488] [2024-11-23 18:36:57,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:57,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 18:36:57,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:57,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 18:36:57,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2024-11-23 18:36:57,816 INFO L87 Difference]: Start difference. First operand 950 states and 1279 transitions. Second operand has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:37:04,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:04,526 INFO L93 Difference]: Finished difference Result 1104 states and 1438 transitions. [2024-11-23 18:37:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 18:37:04,527 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-23 18:37:04,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:04,531 INFO L225 Difference]: With dead ends: 1104 [2024-11-23 18:37:04,531 INFO L226 Difference]: Without dead ends: 1102 [2024-11-23 18:37:04,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=478, Invalid=1874, Unknown=0, NotChecked=0, Total=2352 [2024-11-23 18:37:04,532 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 394 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:04,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 676 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-23 18:37:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-23 18:37:04,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 962. [2024-11-23 18:37:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 887 states have (on average 1.3111612175873733) internal successors, (1163), 887 states have internal predecessors, (1163), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:37:04,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1293 transitions. [2024-11-23 18:37:04,590 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1293 transitions. Word has length 109 [2024-11-23 18:37:04,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:04,591 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1293 transitions. [2024-11-23 18:37:04,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:37:04,591 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1293 transitions. [2024-11-23 18:37:04,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 18:37:04,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:04,592 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:04,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-23 18:37:04,592 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:04,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:04,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1934287879, now seen corresponding path program 1 times [2024-11-23 18:37:04,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:04,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337175780] [2024-11-23 18:37:04,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:04,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:59,475 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:37:59,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:59,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337175780] [2024-11-23 18:37:59,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337175780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:37:59,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:37:59,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-23 18:37:59,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700073962] [2024-11-23 18:37:59,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:59,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 18:37:59,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:59,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 18:37:59,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:37:59,476 INFO L87 Difference]: Start difference. First operand 962 states and 1293 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:38:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:04,008 INFO L93 Difference]: Finished difference Result 1106 states and 1441 transitions. [2024-11-23 18:38:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 18:38:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 112 [2024-11-23 18:38:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:04,012 INFO L225 Difference]: With dead ends: 1106 [2024-11-23 18:38:04,012 INFO L226 Difference]: Without dead ends: 1104 [2024-11-23 18:38:04,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 18:38:04,013 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 334 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:04,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 762 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 18:38:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2024-11-23 18:38:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 954. [2024-11-23 18:38:04,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 879 states have (on average 1.3117178612059157) internal successors, (1153), 879 states have internal predecessors, (1153), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:38:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1283 transitions. [2024-11-23 18:38:04,102 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1283 transitions. Word has length 112 [2024-11-23 18:38:04,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:04,103 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1283 transitions. [2024-11-23 18:38:04,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:38:04,103 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1283 transitions. [2024-11-23 18:38:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 18:38:04,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:04,104 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:04,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-23 18:38:04,104 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:04,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1872248265, now seen corresponding path program 1 times [2024-11-23 18:38:04,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:04,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30964520] [2024-11-23 18:38:04,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:04,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:56,366 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:38:56,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:56,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30964520] [2024-11-23 18:38:56,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30964520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:38:56,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:38:56,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 18:38:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032309019] [2024-11-23 18:38:56,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:38:56,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 18:38:56,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:38:56,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 18:38:56,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:38:56,367 INFO L87 Difference]: Start difference. First operand 954 states and 1283 transitions. Second operand has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:38:59,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:59,656 INFO L93 Difference]: Finished difference Result 1100 states and 1435 transitions. [2024-11-23 18:38:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:38:59,657 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-11-23 18:38:59,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:59,660 INFO L225 Difference]: With dead ends: 1100 [2024-11-23 18:38:59,660 INFO L226 Difference]: Without dead ends: 1098 [2024-11-23 18:38:59,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=181, Invalid=749, Unknown=0, NotChecked=0, Total=930 [2024-11-23 18:38:59,661 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 261 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:59,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 881 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 18:38:59,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-23 18:38:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 946. [2024-11-23 18:38:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 871 states have (on average 1.3122847301951779) internal successors, (1143), 871 states have internal predecessors, (1143), 65 states have call successors, (65), 9 states have call predecessors, (65), 9 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:38:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1273 transitions. [2024-11-23 18:38:59,739 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1273 transitions. Word has length 112 [2024-11-23 18:38:59,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:59,739 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1273 transitions. [2024-11-23 18:38:59,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:38:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1273 transitions. [2024-11-23 18:38:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 18:38:59,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:59,740 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:59,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-23 18:38:59,741 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:59,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:59,741 INFO L85 PathProgramCache]: Analyzing trace with hash -11059845, now seen corresponding path program 1 times [2024-11-23 18:38:59,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:59,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867653336] [2024-11-23 18:38:59,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:59,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:08,509 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:39:08,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:08,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867653336] [2024-11-23 18:39:08,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867653336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:08,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:08,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:39:08,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673078171] [2024-11-23 18:39:08,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:08,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:39:08,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:08,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:39:08,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:39:08,511 INFO L87 Difference]: Start difference. First operand 946 states and 1273 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:39:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:11,338 INFO L93 Difference]: Finished difference Result 1298 states and 1755 transitions. [2024-11-23 18:39:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 18:39:11,339 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-11-23 18:39:11,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:11,342 INFO L225 Difference]: With dead ends: 1298 [2024-11-23 18:39:11,342 INFO L226 Difference]: Without dead ends: 1002 [2024-11-23 18:39:11,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2024-11-23 18:39:11,343 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 304 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:11,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 488 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 18:39:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-23 18:39:11,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 937. [2024-11-23 18:39:11,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 861 states have (on average 1.3135888501742161) internal successors, (1131), 861 states have internal predecessors, (1131), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:39:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1261 transitions. [2024-11-23 18:39:11,456 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1261 transitions. Word has length 112 [2024-11-23 18:39:11,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:11,456 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1261 transitions. [2024-11-23 18:39:11,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:39:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1261 transitions. [2024-11-23 18:39:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 18:39:11,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:11,458 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:11,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-23 18:39:11,459 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:11,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:11,459 INFO L85 PathProgramCache]: Analyzing trace with hash 50979769, now seen corresponding path program 1 times [2024-11-23 18:39:11,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:11,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124486318] [2024-11-23 18:39:11,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:11,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:39:11,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:11,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124486318] [2024-11-23 18:39:11,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124486318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:11,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:11,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 18:39:11,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767892514] [2024-11-23 18:39:11,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:11,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:39:11,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:11,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:39:11,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:39:11,988 INFO L87 Difference]: Start difference. First operand 937 states and 1261 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:39:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:12,793 INFO L93 Difference]: Finished difference Result 1619 states and 2201 transitions. [2024-11-23 18:39:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:39:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 112 [2024-11-23 18:39:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:12,797 INFO L225 Difference]: With dead ends: 1619 [2024-11-23 18:39:12,797 INFO L226 Difference]: Without dead ends: 993 [2024-11-23 18:39:12,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:39:12,799 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 122 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:12,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 485 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:39:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-11-23 18:39:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 887. [2024-11-23 18:39:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 811 states have (on average 1.3218249075215782) internal successors, (1072), 811 states have internal predecessors, (1072), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:39:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1202 transitions. [2024-11-23 18:39:12,919 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1202 transitions. Word has length 112 [2024-11-23 18:39:12,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:12,919 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1202 transitions. [2024-11-23 18:39:12,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 18:39:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1202 transitions. [2024-11-23 18:39:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 18:39:12,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:12,920 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:12,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-23 18:39:12,920 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:12,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1903200123, now seen corresponding path program 1 times [2024-11-23 18:39:12,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:12,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151860767] [2024-11-23 18:39:12,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:12,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-23 18:40:10,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151860767] [2024-11-23 18:40:10,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151860767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:10,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:10,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 18:40:10,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223171131] [2024-11-23 18:40:10,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:10,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 18:40:10,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:10,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 18:40:10,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-23 18:40:10,713 INFO L87 Difference]: Start difference. First operand 887 states and 1202 transitions. Second operand has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:40:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:15,048 INFO L93 Difference]: Finished difference Result 995 states and 1314 transitions. [2024-11-23 18:40:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 18:40:15,048 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-11-23 18:40:15,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:15,051 INFO L225 Difference]: With dead ends: 995 [2024-11-23 18:40:15,051 INFO L226 Difference]: Without dead ends: 993 [2024-11-23 18:40:15,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 18:40:15,052 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 324 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:15,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 755 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-23 18:40:15,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-11-23 18:40:15,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 879. [2024-11-23 18:40:15,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 803 states have (on average 1.3225404732254047) internal successors, (1062), 803 states have internal predecessors, (1062), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:40:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1192 transitions. [2024-11-23 18:40:15,166 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1192 transitions. Word has length 113 [2024-11-23 18:40:15,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:15,166 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 1192 transitions. [2024-11-23 18:40:15,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 18:40:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1192 transitions. [2024-11-23 18:40:15,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 18:40:15,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:15,168 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:15,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-23 18:40:15,168 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:15,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:15,168 INFO L85 PathProgramCache]: Analyzing trace with hash -468539139, now seen corresponding path program 1 times [2024-11-23 18:40:15,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:15,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482291256] [2024-11-23 18:40:15,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:15,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat