./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.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_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/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_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/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_e5cca2b2-e996-4ff0-8860-a034fe0676d5/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 ead0eea170c5a9d81f9726cf37f718700e7559d903645dc78a3313310603417e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:07:47,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:07:47,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:07:47,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:07:47,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:07:47,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:07:47,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:07:47,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:07:47,441 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:07:47,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:07:47,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:07:47,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:07:47,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:07:47,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:07:47,443 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:07:47,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:07:47,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:07:47,443 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:07:47,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:07:47,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:07:47,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:07:47,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:07:47,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:07:47,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:07:47,444 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:07:47,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:07:47,445 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:07:47,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:07:47,445 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:07:47,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:07:47,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:07:47,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:07:47,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:47,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:07:47,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:07:47,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:07:47,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:07:47,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:47,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:07:47,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:07:47,447 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:07:47,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:07:47,448 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:07:47,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:07:47,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:07:47,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:07:47,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:07:47,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:07:47,449 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_e5cca2b2-e996-4ff0-8860-a034fe0676d5/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 -> ead0eea170c5a9d81f9726cf37f718700e7559d903645dc78a3313310603417e [2024-11-23 23:07:47,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:07:47,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:07:47,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:07:47,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:07:47,819 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:07:47,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.i [2024-11-23 23:07:50,875 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/data/7ed27e144/8f2db095dad84ec4a894358601f1ad40/FLAG2064f35e6 [2024-11-23 23:07:51,274 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:07:51,274 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.i [2024-11-23 23:07:51,294 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/data/7ed27e144/8f2db095dad84ec4a894358601f1ad40/FLAG2064f35e6 [2024-11-23 23:07:51,308 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/data/7ed27e144/8f2db095dad84ec4a894358601f1ad40 [2024-11-23 23:07:51,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:07:51,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:07:51,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:07:51,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:07:51,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:07:51,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:51,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4df9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51, skipping insertion in model container [2024-11-23 23:07:51,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:51,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:07:51,553 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_e5cca2b2-e996-4ff0-8860-a034fe0676d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.i[916,929] [2024-11-23 23:07:51,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:07:51,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:07:51,820 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_e5cca2b2-e996-4ff0-8860-a034fe0676d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.i[916,929] [2024-11-23 23:07:51,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:07:51,959 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:07:51,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51 WrapperNode [2024-11-23 23:07:51,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:07:51,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:07:51,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:07:51,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:07:51,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,149 INFO L138 Inliner]: procedures = 26, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 841 [2024-11-23 23:07:52,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:07:52,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:07:52,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:07:52,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:07:52,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,301 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:07:52,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:07:52,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:07:52,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:07:52,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:07:52,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (1/1) ... [2024-11-23 23:07:52,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:52,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:52,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:07:52,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:07:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:07:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:07:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:07:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:07:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:07:52,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:07:52,745 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:07:52,747 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:07:55,078 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-23 23:07:55,078 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:07:55,114 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:07:55,114 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:07:55,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:55 BoogieIcfgContainer [2024-11-23 23:07:55,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:07:55,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:07:55,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:07:55,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:07:55,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:07:51" (1/3) ... [2024-11-23 23:07:55,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65498588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:55, skipping insertion in model container [2024-11-23 23:07:55,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:51" (2/3) ... [2024-11-23 23:07:55,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65498588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:55, skipping insertion in model container [2024-11-23 23:07:55,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:55" (3/3) ... [2024-11-23 23:07:55,130 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-10.i [2024-11-23 23:07:55,150 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:07:55,153 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-10.i that has 2 procedures, 356 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:07:55,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:07:55,288 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;@5099cf9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:07:55,288 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:07:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 255 states have (on average 1.5960784313725491) internal successors, (407), 256 states have internal predecessors, (407), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-23 23:07:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-23 23:07:55,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:55,365 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:55,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:55,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:55,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1254864149, now seen corresponding path program 1 times [2024-11-23 23:07:55,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:55,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214429193] [2024-11-23 23:07:55,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:55,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:56,531 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2024-11-23 23:07:56,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:56,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214429193] [2024-11-23 23:07:56,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214429193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:56,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638385287] [2024-11-23 23:07:56,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:56,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:56,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:56,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:56,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:07:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:57,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:07:57,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:57,332 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2024-11-23 23:07:57,333 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:57,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638385287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:57,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:57,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:07:57,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847622978] [2024-11-23 23:07:57,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:57,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:07:57,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:57,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:07:57,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:07:57,376 INFO L87 Difference]: Start difference. First operand has 356 states, 255 states have (on average 1.5960784313725491) internal successors, (407), 256 states have internal predecessors, (407), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-23 23:07:57,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:57,470 INFO L93 Difference]: Finished difference Result 704 states and 1296 transitions. [2024-11-23 23:07:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:07:57,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) Word has length 645 [2024-11-23 23:07:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:57,484 INFO L225 Difference]: With dead ends: 704 [2024-11-23 23:07:57,485 INFO L226 Difference]: Without dead ends: 351 [2024-11-23 23:07:57,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:07:57,494 INFO L435 NwaCegarLoop]: 591 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, 591 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:57,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:07:57,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-23 23:07:57,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-23 23:07:57,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 251 states have (on average 1.5737051792828685) internal successors, (395), 251 states have internal predecessors, (395), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-23 23:07:57,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 591 transitions. [2024-11-23 23:07:57,612 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 591 transitions. Word has length 645 [2024-11-23 23:07:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:57,613 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 591 transitions. [2024-11-23 23:07:57,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-23 23:07:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 591 transitions. [2024-11-23 23:07:57,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-23 23:07:57,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:57,636 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:57,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:57,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5cca2b2-e996-4ff0-8860-a034fe0676d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:07:57,841 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:57,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:57,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1368206069, now seen corresponding path program 1 times [2024-11-23 23:07:57,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:57,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331581428] [2024-11-23 23:07:57,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:57,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:07:59,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:59,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331581428] [2024-11-23 23:07:59,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331581428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:59,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:59,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:07:59,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411303214] [2024-11-23 23:07:59,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:59,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:07:59,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:59,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:07:59,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:59,266 INFO L87 Difference]: Start difference. First operand 351 states and 591 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:07:59,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:59,362 INFO L93 Difference]: Finished difference Result 700 states and 1181 transitions. [2024-11-23 23:07:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:07:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-23 23:07:59,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:59,371 INFO L225 Difference]: With dead ends: 700 [2024-11-23 23:07:59,371 INFO L226 Difference]: Without dead ends: 352 [2024-11-23 23:07:59,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:59,377 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 0 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:59,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1175 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:07:59,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-23 23:07:59,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2024-11-23 23:07:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 252 states have (on average 1.5714285714285714) internal successors, (396), 252 states have internal predecessors, (396), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-23 23:07:59,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 592 transitions. [2024-11-23 23:07:59,447 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 592 transitions. Word has length 645 [2024-11-23 23:07:59,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:59,450 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 592 transitions. [2024-11-23 23:07:59,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:07:59,450 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 592 transitions. [2024-11-23 23:07:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-23 23:07:59,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:59,476 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:59,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:07:59,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:59,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash -709130829, now seen corresponding path program 1 times [2024-11-23 23:07:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:59,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950551377] [2024-11-23 23:07:59,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:00,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:00,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950551377] [2024-11-23 23:08:00,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950551377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:00,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:00,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:00,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646257434] [2024-11-23 23:08:00,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:00,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:00,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:00,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:00,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:00,064 INFO L87 Difference]: Start difference. First operand 352 states and 592 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:00,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:00,197 INFO L93 Difference]: Finished difference Result 917 states and 1550 transitions. [2024-11-23 23:08:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:00,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-23 23:08:00,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:00,206 INFO L225 Difference]: With dead ends: 917 [2024-11-23 23:08:00,206 INFO L226 Difference]: Without dead ends: 568 [2024-11-23 23:08:00,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:00,209 INFO L435 NwaCegarLoop]: 671 mSDtfsCounter, 334 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:00,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1253 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-23 23:08:00,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 565. [2024-11-23 23:08:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 434 states have (on average 1.6152073732718895) internal successors, (701), 435 states have internal predecessors, (701), 128 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-23 23:08:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 957 transitions. [2024-11-23 23:08:00,317 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 957 transitions. Word has length 645 [2024-11-23 23:08:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:00,319 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 957 transitions. [2024-11-23 23:08:00,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:00,320 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 957 transitions. [2024-11-23 23:08:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-23 23:08:00,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:00,338 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:00,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:08:00,338 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:00,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:00,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1557250357, now seen corresponding path program 1 times [2024-11-23 23:08:00,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:00,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389447434] [2024-11-23 23:08:00,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:00,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:00,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389447434] [2024-11-23 23:08:00,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389447434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:00,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:00,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:00,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588369443] [2024-11-23 23:08:00,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:00,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:00,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:00,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:00,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:00,827 INFO L87 Difference]: Start difference. First operand 565 states and 957 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:00,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:00,948 INFO L93 Difference]: Finished difference Result 1559 states and 2644 transitions. [2024-11-23 23:08:00,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:00,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-23 23:08:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:00,964 INFO L225 Difference]: With dead ends: 1559 [2024-11-23 23:08:00,964 INFO L226 Difference]: Without dead ends: 997 [2024-11-23 23:08:00,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:00,970 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 368 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:00,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1170 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:00,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-23 23:08:01,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 994. [2024-11-23 23:08:01,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 773 states have (on average 1.6196636481241915) internal successors, (1252), 776 states have internal predecessors, (1252), 216 states have call successors, (216), 4 states have call predecessors, (216), 4 states have return successors, (216), 213 states have call predecessors, (216), 216 states have call successors, (216) [2024-11-23 23:08:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1684 transitions. [2024-11-23 23:08:01,113 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1684 transitions. Word has length 645 [2024-11-23 23:08:01,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:01,117 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1684 transitions. [2024-11-23 23:08:01,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1684 transitions. [2024-11-23 23:08:01,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-23 23:08:01,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:01,128 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:01,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:08:01,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:01,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash 713244855, now seen corresponding path program 1 times [2024-11-23 23:08:01,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:01,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720232765] [2024-11-23 23:08:01,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:01,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:01,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:01,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720232765] [2024-11-23 23:08:01,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720232765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:01,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:01,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:01,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869576622] [2024-11-23 23:08:01,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:01,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:01,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:01,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:01,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:01,607 INFO L87 Difference]: Start difference. First operand 994 states and 1684 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:01,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:01,779 INFO L93 Difference]: Finished difference Result 2909 states and 4927 transitions. [2024-11-23 23:08:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:01,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-23 23:08:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:01,799 INFO L225 Difference]: With dead ends: 2909 [2024-11-23 23:08:01,799 INFO L226 Difference]: Without dead ends: 1918 [2024-11-23 23:08:01,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:01,805 INFO L435 NwaCegarLoop]: 1003 mSDtfsCounter, 548 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:01,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1584 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:01,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2024-11-23 23:08:02,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1916. [2024-11-23 23:08:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1475 states have (on average 1.6033898305084746) internal successors, (2365), 1481 states have internal predecessors, (2365), 432 states have call successors, (432), 8 states have call predecessors, (432), 8 states have return successors, (432), 426 states have call predecessors, (432), 432 states have call successors, (432) [2024-11-23 23:08:02,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 3229 transitions. [2024-11-23 23:08:02,040 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 3229 transitions. Word has length 645 [2024-11-23 23:08:02,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:02,041 INFO L471 AbstractCegarLoop]: Abstraction has 1916 states and 3229 transitions. [2024-11-23 23:08:02,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 3229 transitions. [2024-11-23 23:08:02,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-23 23:08:02,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:02,091 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:02,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:08:02,091 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:02,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:02,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1517945797, now seen corresponding path program 1 times [2024-11-23 23:08:02,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:02,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696382203] [2024-11-23 23:08:02,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:02,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:03,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:03,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696382203] [2024-11-23 23:08:03,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696382203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:03,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:03,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:03,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97697566] [2024-11-23 23:08:03,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:03,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:03,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:03,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:03,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:03,241 INFO L87 Difference]: Start difference. First operand 1916 states and 3229 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:03,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:03,553 INFO L93 Difference]: Finished difference Result 4341 states and 7350 transitions. [2024-11-23 23:08:03,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:03,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-23 23:08:03,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:03,575 INFO L225 Difference]: With dead ends: 4341 [2024-11-23 23:08:03,576 INFO L226 Difference]: Without dead ends: 2428 [2024-11-23 23:08:03,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:03,587 INFO L435 NwaCegarLoop]: 1030 mSDtfsCounter, 573 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:03,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1476 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:03,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2024-11-23 23:08:03,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2082. [2024-11-23 23:08:03,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 1541 states have (on average 1.5671641791044777) internal successors, (2415), 1548 states have internal predecessors, (2415), 530 states have call successors, (530), 10 states have call predecessors, (530), 10 states have return successors, (530), 523 states have call predecessors, (530), 530 states have call successors, (530) [2024-11-23 23:08:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 3475 transitions. [2024-11-23 23:08:03,951 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 3475 transitions. Word has length 645 [2024-11-23 23:08:03,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:03,953 INFO L471 AbstractCegarLoop]: Abstraction has 2082 states and 3475 transitions. [2024-11-23 23:08:03,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:03,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 3475 transitions. [2024-11-23 23:08:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-23 23:08:03,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:03,963 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:03,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:08:03,964 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:03,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1486264016, now seen corresponding path program 1 times [2024-11-23 23:08:03,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:03,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286464990] [2024-11-23 23:08:03,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:03,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:05,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:05,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286464990] [2024-11-23 23:08:05,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286464990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:05,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:05,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:05,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688296530] [2024-11-23 23:08:05,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:05,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:05,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:05,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:05,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:05,013 INFO L87 Difference]: Start difference. First operand 2082 states and 3475 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:05,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:05,470 INFO L93 Difference]: Finished difference Result 5908 states and 9895 transitions. [2024-11-23 23:08:05,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:05,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 646 [2024-11-23 23:08:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:05,499 INFO L225 Difference]: With dead ends: 5908 [2024-11-23 23:08:05,499 INFO L226 Difference]: Without dead ends: 3995 [2024-11-23 23:08:05,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:05,506 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 362 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:05,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1171 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:05,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2024-11-23 23:08:06,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3993. [2024-11-23 23:08:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3993 states, 3012 states have (on average 1.5776892430278884) internal successors, (4752), 3025 states have internal predecessors, (4752), 962 states have call successors, (962), 18 states have call predecessors, (962), 18 states have return successors, (962), 949 states have call predecessors, (962), 962 states have call successors, (962) [2024-11-23 23:08:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3993 states to 3993 states and 6676 transitions. [2024-11-23 23:08:06,185 INFO L78 Accepts]: Start accepts. Automaton has 3993 states and 6676 transitions. Word has length 646 [2024-11-23 23:08:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:06,187 INFO L471 AbstractCegarLoop]: Abstraction has 3993 states and 6676 transitions. [2024-11-23 23:08:06,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3993 states and 6676 transitions. [2024-11-23 23:08:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-23 23:08:06,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:06,230 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:06,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:08:06,230 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:06,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:06,231 INFO L85 PathProgramCache]: Analyzing trace with hash 100060622, now seen corresponding path program 1 times [2024-11-23 23:08:06,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:06,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625365260] [2024-11-23 23:08:06,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:06,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:07,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:07,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625365260] [2024-11-23 23:08:07,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625365260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:07,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:07,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:08:07,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437325776] [2024-11-23 23:08:07,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:07,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:08:07,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:07,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:08:07,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:08:07,536 INFO L87 Difference]: Start difference. First operand 3993 states and 6676 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:08,589 INFO L93 Difference]: Finished difference Result 9445 states and 15825 transitions. [2024-11-23 23:08:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:08:08,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 646 [2024-11-23 23:08:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:08,632 INFO L225 Difference]: With dead ends: 9445 [2024-11-23 23:08:08,632 INFO L226 Difference]: Without dead ends: 5621 [2024-11-23 23:08:08,646 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 23:08:08,646 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 599 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:08,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1744 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:08:08,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5621 states. [2024-11-23 23:08:09,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5621 to 5107. [2024-11-23 23:08:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 4126 states have (on average 1.6250605913717886) internal successors, (6705), 4138 states have internal predecessors, (6705), 962 states have call successors, (962), 18 states have call predecessors, (962), 18 states have return successors, (962), 950 states have call predecessors, (962), 962 states have call successors, (962) [2024-11-23 23:08:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 8629 transitions. [2024-11-23 23:08:09,400 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 8629 transitions. Word has length 646 [2024-11-23 23:08:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:09,401 INFO L471 AbstractCegarLoop]: Abstraction has 5107 states and 8629 transitions. [2024-11-23 23:08:09,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 8629 transitions. [2024-11-23 23:08:09,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-11-23 23:08:09,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:09,422 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:09,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:08:09,422 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:09,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1852259300, now seen corresponding path program 1 times [2024-11-23 23:08:09,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:09,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004236231] [2024-11-23 23:08:09,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:09,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:11,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:11,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004236231] [2024-11-23 23:08:11,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004236231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:11,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:11,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:08:11,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949148528] [2024-11-23 23:08:11,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:11,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:08:11,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:11,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:08:11,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:08:11,063 INFO L87 Difference]: Start difference. First operand 5107 states and 8629 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:14,844 INFO L93 Difference]: Finished difference Result 27059 states and 45807 transitions. [2024-11-23 23:08:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:08:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 647 [2024-11-23 23:08:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:14,975 INFO L225 Difference]: With dead ends: 27059 [2024-11-23 23:08:14,975 INFO L226 Difference]: Without dead ends: 22223 [2024-11-23 23:08:14,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:08:14,998 INFO L435 NwaCegarLoop]: 678 mSDtfsCounter, 2886 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:14,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 2461 Invalid, 1169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [444 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 23:08:15,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22223 states. [2024-11-23 23:08:16,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22223 to 18363. [2024-11-23 23:08:16,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18363 states, 15477 states have (on average 1.649544485365381) internal successors, (25530), 15537 states have internal predecessors, (25530), 2818 states have call successors, (2818), 67 states have call predecessors, (2818), 67 states have return successors, (2818), 2758 states have call predecessors, (2818), 2818 states have call successors, (2818) [2024-11-23 23:08:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18363 states to 18363 states and 31166 transitions. [2024-11-23 23:08:16,502 INFO L78 Accepts]: Start accepts. Automaton has 18363 states and 31166 transitions. Word has length 647 [2024-11-23 23:08:16,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:16,503 INFO L471 AbstractCegarLoop]: Abstraction has 18363 states and 31166 transitions. [2024-11-23 23:08:16,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 18363 states and 31166 transitions. [2024-11-23 23:08:16,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-11-23 23:08:16,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:16,518 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:16,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:08:16,519 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:16,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash 884908646, now seen corresponding path program 1 times [2024-11-23 23:08:16,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:16,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792502543] [2024-11-23 23:08:16,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:16,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:17,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:17,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792502543] [2024-11-23 23:08:17,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792502543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:17,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:17,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:08:17,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813861652] [2024-11-23 23:08:17,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:17,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:17,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:17,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:17,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:17,593 INFO L87 Difference]: Start difference. First operand 18363 states and 31166 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:19,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:19,807 INFO L93 Difference]: Finished difference Result 54720 states and 92921 transitions. [2024-11-23 23:08:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:19,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 647 [2024-11-23 23:08:19,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:19,978 INFO L225 Difference]: With dead ends: 54720 [2024-11-23 23:08:19,979 INFO L226 Difference]: Without dead ends: 36548 [2024-11-23 23:08:20,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:20,036 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 394 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:20,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1122 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:08:20,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36548 states. [2024-11-23 23:08:22,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36548 to 36538. [2024-11-23 23:08:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36538 states, 30868 states have (on average 1.644065051185694) internal successors, (50749), 30988 states have internal predecessors, (50749), 5538 states have call successors, (5538), 131 states have call predecessors, (5538), 131 states have return successors, (5538), 5418 states have call predecessors, (5538), 5538 states have call successors, (5538) [2024-11-23 23:08:22,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36538 states to 36538 states and 61825 transitions. [2024-11-23 23:08:23,004 INFO L78 Accepts]: Start accepts. Automaton has 36538 states and 61825 transitions. Word has length 647 [2024-11-23 23:08:23,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:23,006 INFO L471 AbstractCegarLoop]: Abstraction has 36538 states and 61825 transitions. [2024-11-23 23:08:23,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 36538 states and 61825 transitions. [2024-11-23 23:08:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2024-11-23 23:08:23,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:23,038 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:23,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:08:23,039 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:23,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:23,040 INFO L85 PathProgramCache]: Analyzing trace with hash 86666994, now seen corresponding path program 1 times [2024-11-23 23:08:23,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:23,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479201490] [2024-11-23 23:08:23,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:23,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:24,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479201490] [2024-11-23 23:08:24,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479201490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:24,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:24,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:08:24,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86403537] [2024-11-23 23:08:24,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:24,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:08:24,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:24,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:08:24,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:08:24,970 INFO L87 Difference]: Start difference. First operand 36538 states and 61825 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:33,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:33,257 INFO L93 Difference]: Finished difference Result 128955 states and 216937 transitions. [2024-11-23 23:08:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:08:33,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 648 [2024-11-23 23:08:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:33,784 INFO L225 Difference]: With dead ends: 128955 [2024-11-23 23:08:33,784 INFO L226 Difference]: Without dead ends: 99801 [2024-11-23 23:08:33,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:08:33,878 INFO L435 NwaCegarLoop]: 935 mSDtfsCounter, 1485 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:33,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 3076 Invalid, 1050 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [200 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-23 23:08:33,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99801 states. [2024-11-23 23:08:42,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99801 to 99755. [2024-11-23 23:08:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99755 states, 82949 states have (on average 1.626987667120761) internal successors, (134957), 83309 states have internal predecessors, (134957), 16418 states have call successors, (16418), 387 states have call predecessors, (16418), 387 states have return successors, (16418), 16058 states have call predecessors, (16418), 16418 states have call successors, (16418) [2024-11-23 23:08:43,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99755 states to 99755 states and 167793 transitions. [2024-11-23 23:08:43,261 INFO L78 Accepts]: Start accepts. Automaton has 99755 states and 167793 transitions. Word has length 648 [2024-11-23 23:08:43,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:43,263 INFO L471 AbstractCegarLoop]: Abstraction has 99755 states and 167793 transitions. [2024-11-23 23:08:43,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:43,264 INFO L276 IsEmpty]: Start isEmpty. Operand 99755 states and 167793 transitions. [2024-11-23 23:08:43,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2024-11-23 23:08:43,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:43,327 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:43,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:08:43,329 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:43,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1285140304, now seen corresponding path program 1 times [2024-11-23 23:08:43,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:43,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506132429] [2024-11-23 23:08:43,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:43,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-23 23:08:45,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:45,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506132429] [2024-11-23 23:08:45,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506132429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:45,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:45,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:08:45,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743465320] [2024-11-23 23:08:45,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:45,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:08:45,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:45,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:08:45,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:08:45,528 INFO L87 Difference]: Start difference. First operand 99755 states and 167793 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-23 23:08:57,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:57,720 INFO L93 Difference]: Finished difference Result 330606 states and 554591 transitions. [2024-11-23 23:08:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:08:57,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 648 [2024-11-23 23:08:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:58,720 INFO L225 Difference]: With dead ends: 330606 [2024-11-23 23:08:58,720 INFO L226 Difference]: Without dead ends: 240844 [2024-11-23 23:08:58,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:08:58,937 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 1309 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:58,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 2533 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:08:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240844 states.