./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB --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 24099d82b3ec494380587a5a92596aaf0762a1093bfe7e4cba5f9fda7da3acf4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:59:25,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:59:26,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:59:26,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:59:26,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:59:26,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:59:26,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:59:26,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:59:26,107 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:59:26,107 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:59:26,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:59:26,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:59:26,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:59:26,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:59:26,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:59:26,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:59:26,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:59:26,110 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:59:26,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:59:26,111 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:59:26,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:26,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:26,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:59:26,112 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:59:26,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:59:26,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:59:26,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:59:26,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:59:26,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:59:26,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:59:26,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:59:26,113 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_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 24099d82b3ec494380587a5a92596aaf0762a1093bfe7e4cba5f9fda7da3acf4 [2024-11-28 02:59:26,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:59:26,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:59:26,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:59:26,411 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:59:26,411 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:59:26,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i [2024-11-28 02:59:29,330 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/data/22da1955f/7750a2e0c277449c8b377120d435fe27/FLAG60f9e0d4c [2024-11-28 02:59:29,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:59:29,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i [2024-11-28 02:59:29,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/data/22da1955f/7750a2e0c277449c8b377120d435fe27/FLAG60f9e0d4c [2024-11-28 02:59:29,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/data/22da1955f/7750a2e0c277449c8b377120d435fe27 [2024-11-28 02:59:29,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:59:29,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:59:29,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:29,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:59:29,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:59:29,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:29" (1/1) ... [2024-11-28 02:59:29,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4181aafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:29, skipping insertion in model container [2024-11-28 02:59:29,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:29" (1/1) ... [2024-11-28 02:59:29,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:59:29,810 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_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i[913,926] [2024-11-28 02:59:29,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:29,935 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:59:29,945 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_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i[913,926] [2024-11-28 02:59:29,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:30,003 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:59:30,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30 WrapperNode [2024-11-28 02:59:30,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:30,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:30,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:59:30,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:59:30,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,062 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 165 [2024-11-28 02:59:30,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:30,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:59:30,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:59:30,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:59:30,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,109 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]. [2024-11-28 02:59:30,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,126 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:59:30,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:59:30,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:59:30,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:59:30,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (1/1) ... [2024-11-28 02:59:30,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:30,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:30,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:59:30,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4e27e8-51cb-4c1a-bd28-6637a36f5e90/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:59:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:59:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:59:30,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:59:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:59:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:59:30,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:59:30,306 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:59:30,308 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:59:30,798 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-28 02:59:30,798 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:59:30,812 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:59:30,812 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:59:30,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:30 BoogieIcfgContainer [2024-11-28 02:59:30,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:59:30,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:59:30,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:59:30,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:59:30,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:29" (1/3) ... [2024-11-28 02:59:30,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca7c648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:30, skipping insertion in model container [2024-11-28 02:59:30,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:30" (2/3) ... [2024-11-28 02:59:30,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca7c648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:30, skipping insertion in model container [2024-11-28 02:59:30,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:30" (3/3) ... [2024-11-28 02:59:30,823 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-10.i [2024-11-28 02:59:30,839 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:59:30,840 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-10.i that has 2 procedures, 74 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:59:30,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:59:30,934 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;@1395aa48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:59:30,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:59:30,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 54 states have internal predecessors, (74), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 02:59:30,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 02:59:30,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:30,958 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:30,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:30,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:30,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1915142532, now seen corresponding path program 1 times [2024-11-28 02:59:30,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252050160] [2024-11-28 02:59:30,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:30,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:31,986 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 02:59:31,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:31,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252050160] [2024-11-28 02:59:31,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252050160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:31,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:31,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:59:31,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193837841] [2024-11-28 02:59:31,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:31,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:59:31,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:32,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:59:32,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:32,024 INFO L87 Difference]: Start difference. First operand has 74 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 54 states have internal predecessors, (74), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 02:59:32,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:32,347 INFO L93 Difference]: Finished difference Result 209 states and 357 transitions. [2024-11-28 02:59:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:59:32,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2024-11-28 02:59:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:32,364 INFO L225 Difference]: With dead ends: 209 [2024-11-28 02:59:32,364 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 02:59:32,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:59:32,375 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 72 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:32,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 384 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:59:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 02:59:32,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 104. [2024-11-28 02:59:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 65 states have internal predecessors, (82), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:59:32,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 154 transitions. [2024-11-28 02:59:32,437 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 154 transitions. Word has length 122 [2024-11-28 02:59:32,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:32,438 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 154 transitions. [2024-11-28 02:59:32,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 02:59:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 154 transitions. [2024-11-28 02:59:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 02:59:32,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:32,446 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:32,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:59:32,446 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:32,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:32,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2009744545, now seen corresponding path program 1 times [2024-11-28 02:59:32,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:32,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075328821] [2024-11-28 02:59:32,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:32,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 02:59:53,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:53,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075328821] [2024-11-28 02:59:53,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075328821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:53,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:53,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 02:59:53,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433952759] [2024-11-28 02:59:53,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:53,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:59:53,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:53,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:59:53,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:59:53,969 INFO L87 Difference]: Start difference. First operand 104 states and 154 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:59:56,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:56,199 INFO L93 Difference]: Finished difference Result 341 states and 493 transitions. [2024-11-28 02:59:56,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:59:56,200 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 02:59:56,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:56,205 INFO L225 Difference]: With dead ends: 341 [2024-11-28 02:59:56,208 INFO L226 Difference]: Without dead ends: 274 [2024-11-28 02:59:56,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:59:56,211 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 701 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:56,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 522 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:59:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-28 02:59:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 187. [2024-11-28 02:59:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 128 states have (on average 1.296875) internal successors, (166), 129 states have internal predecessors, (166), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:59:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 274 transitions. [2024-11-28 02:59:56,249 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 274 transitions. Word has length 123 [2024-11-28 02:59:56,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:56,250 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 274 transitions. [2024-11-28 02:59:56,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:59:56,251 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 274 transitions. [2024-11-28 02:59:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 02:59:56,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:56,253 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:56,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:59:56,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:56,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:56,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1329686175, now seen corresponding path program 1 times [2024-11-28 02:59:56,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:56,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819755324] [2024-11-28 02:59:56,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:56,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:01:01,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:01,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819755324] [2024-11-28 03:01:01,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819755324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:01:01,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:01:01,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:01:01,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466693295] [2024-11-28 03:01:01,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:01:01,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:01:01,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:01,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:01:01,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:01:01,606 INFO L87 Difference]: Start difference. First operand 187 states and 274 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:01:04,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:04,118 INFO L93 Difference]: Finished difference Result 343 states and 492 transitions. [2024-11-28 03:01:04,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:01:04,119 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:01:04,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:04,122 INFO L225 Difference]: With dead ends: 343 [2024-11-28 03:01:04,122 INFO L226 Difference]: Without dead ends: 276 [2024-11-28 03:01:04,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:01:04,124 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 476 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:04,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 528 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:01:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-28 03:01:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 187. [2024-11-28 03:01:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 128 states have (on average 1.296875) internal successors, (166), 129 states have internal predecessors, (166), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:01:04,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 274 transitions. [2024-11-28 03:01:04,153 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 274 transitions. Word has length 123 [2024-11-28 03:01:04,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:04,153 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 274 transitions. [2024-11-28 03:01:04,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:01:04,154 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 274 transitions. [2024-11-28 03:01:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:01:04,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:04,156 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:04,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:01:04,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:01:04,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1137097311, now seen corresponding path program 1 times [2024-11-28 03:01:04,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:04,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207763387] [2024-11-28 03:01:04,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:04,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:22,559 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:01:22,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:22,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207763387] [2024-11-28 03:01:22,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207763387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:01:22,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:01:22,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:01:22,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313941104] [2024-11-28 03:01:22,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:01:22,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:01:22,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:22,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:01:22,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:01:22,561 INFO L87 Difference]: Start difference. First operand 187 states and 274 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:01:25,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:25,418 INFO L93 Difference]: Finished difference Result 385 states and 538 transitions. [2024-11-28 03:01:25,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:01:25,420 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 123 [2024-11-28 03:01:25,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:25,423 INFO L225 Difference]: With dead ends: 385 [2024-11-28 03:01:25,424 INFO L226 Difference]: Without dead ends: 318 [2024-11-28 03:01:25,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:01:25,427 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 641 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:25,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 679 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:01:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-28 03:01:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 208. [2024-11-28 03:01:25,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 145 states have (on average 1.2758620689655173) internal successors, (185), 146 states have internal predecessors, (185), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:01:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 293 transitions. [2024-11-28 03:01:25,478 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 293 transitions. Word has length 123 [2024-11-28 03:01:25,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:25,479 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 293 transitions. [2024-11-28 03:01:25,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:01:25,480 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 293 transitions. [2024-11-28 03:01:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:01:25,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:25,485 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:25,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:01:25,485 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:01:25,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1395262749, now seen corresponding path program 1 times [2024-11-28 03:01:25,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:25,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364103954] [2024-11-28 03:01:25,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:25,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:01:44,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:44,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364103954] [2024-11-28 03:01:44,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364103954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:01:44,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:01:44,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:01:44,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137446640] [2024-11-28 03:01:44,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:01:44,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:01:44,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:44,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:01:44,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:01:44,852 INFO L87 Difference]: Start difference. First operand 208 states and 293 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:01:48,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:48,477 INFO L93 Difference]: Finished difference Result 487 states and 671 transitions. [2024-11-28 03:01:48,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:01:48,477 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:01:48,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:48,480 INFO L225 Difference]: With dead ends: 487 [2024-11-28 03:01:48,480 INFO L226 Difference]: Without dead ends: 420 [2024-11-28 03:01:48,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:01:48,482 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 726 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:48,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 647 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:01:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-28 03:01:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 208. [2024-11-28 03:01:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 145 states have (on average 1.2758620689655173) internal successors, (185), 146 states have internal predecessors, (185), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:01:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 293 transitions. [2024-11-28 03:01:48,519 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 293 transitions. Word has length 123 [2024-11-28 03:01:48,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:48,520 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 293 transitions. [2024-11-28 03:01:48,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:01:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 293 transitions. [2024-11-28 03:01:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:01:48,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:48,523 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:48,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:01:48,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:01:48,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:48,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1944212767, now seen corresponding path program 1 times [2024-11-28 03:01:48,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:48,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560930804] [2024-11-28 03:01:48,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:48,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:02:01,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:01,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560930804] [2024-11-28 03:02:01,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560930804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:01,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:01,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:02:01,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055838230] [2024-11-28 03:02:01,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:01,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:02:01,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:01,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:02:01,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:01,920 INFO L87 Difference]: Start difference. First operand 208 states and 293 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:02,980 INFO L93 Difference]: Finished difference Result 460 states and 642 transitions. [2024-11-28 03:02:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:02:02,980 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:02:02,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:02,983 INFO L225 Difference]: With dead ends: 460 [2024-11-28 03:02:02,983 INFO L226 Difference]: Without dead ends: 295 [2024-11-28 03:02:02,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:02:02,984 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 411 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:02,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 564 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:02:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-28 03:02:03,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 210. [2024-11-28 03:02:03,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 147 states have (on average 1.272108843537415) internal successors, (187), 148 states have internal predecessors, (187), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:02:03,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 295 transitions. [2024-11-28 03:02:03,006 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 295 transitions. Word has length 123 [2024-11-28 03:02:03,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:03,006 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 295 transitions. [2024-11-28 03:02:03,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:03,007 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 295 transitions. [2024-11-28 03:02:03,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:02:03,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:03,008 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:03,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:02:03,009 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:02:03,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:03,009 INFO L85 PathProgramCache]: Analyzing trace with hash 291078045, now seen corresponding path program 1 times [2024-11-28 03:02:03,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908798930] [2024-11-28 03:02:03,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:03,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:02:09,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:09,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908798930] [2024-11-28 03:02:09,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908798930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:09,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:09,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:02:09,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482281709] [2024-11-28 03:02:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:09,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:02:09,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:09,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:02:09,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:02:09,897 INFO L87 Difference]: Start difference. First operand 210 states and 295 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:11,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:11,450 INFO L93 Difference]: Finished difference Result 422 states and 595 transitions. [2024-11-28 03:02:11,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:02:11,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:02:11,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:11,455 INFO L225 Difference]: With dead ends: 422 [2024-11-28 03:02:11,455 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 03:02:11,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:02:11,457 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 360 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:11,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 552 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:02:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 03:02:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 294. [2024-11-28 03:02:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 211 states have internal predecessors, (270), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:02:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 414 transitions. [2024-11-28 03:02:11,490 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 414 transitions. Word has length 123 [2024-11-28 03:02:11,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:11,491 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 414 transitions. [2024-11-28 03:02:11,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:11,491 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 414 transitions. [2024-11-28 03:02:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:02:11,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:11,494 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:11,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:02:11,494 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:02:11,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:11,495 INFO L85 PathProgramCache]: Analyzing trace with hash 971136415, now seen corresponding path program 1 times [2024-11-28 03:02:11,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:11,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792875461] [2024-11-28 03:02:11,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:02:27,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:27,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792875461] [2024-11-28 03:02:27,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792875461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:27,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:27,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:02:27,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115109708] [2024-11-28 03:02:27,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:27,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:02:27,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:27,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:02:27,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:02:27,077 INFO L87 Difference]: Start difference. First operand 294 states and 414 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:28,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:28,788 INFO L93 Difference]: Finished difference Result 452 states and 632 transitions. [2024-11-28 03:02:28,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:02:28,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:02:28,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:28,791 INFO L225 Difference]: With dead ends: 452 [2024-11-28 03:02:28,792 INFO L226 Difference]: Without dead ends: 385 [2024-11-28 03:02:28,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:02:28,793 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 577 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:28,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 558 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:02:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-28 03:02:28,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 294. [2024-11-28 03:02:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 211 states have internal predecessors, (270), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:02:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 414 transitions. [2024-11-28 03:02:28,818 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 414 transitions. Word has length 123 [2024-11-28 03:02:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:28,819 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 414 transitions. [2024-11-28 03:02:28,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 414 transitions. [2024-11-28 03:02:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:02:28,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:28,821 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:28,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:02:28,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:02:28,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:28,822 INFO L85 PathProgramCache]: Analyzing trace with hash -857047395, now seen corresponding path program 1 times [2024-11-28 03:02:28,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:28,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951758039] [2024-11-28 03:02:28,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:28,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:02:45,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:45,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951758039] [2024-11-28 03:02:45,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951758039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:45,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:45,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:02:45,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817572761] [2024-11-28 03:02:45,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:45,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:02:45,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:45,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:02:45,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:45,467 INFO L87 Difference]: Start difference. First operand 294 states and 414 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:47,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:47,023 INFO L93 Difference]: Finished difference Result 398 states and 560 transitions. [2024-11-28 03:02:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:02:47,024 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:02:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:47,026 INFO L225 Difference]: With dead ends: 398 [2024-11-28 03:02:47,028 INFO L226 Difference]: Without dead ends: 331 [2024-11-28 03:02:47,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:02:47,029 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 301 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:47,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 604 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:02:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-28 03:02:47,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 278. [2024-11-28 03:02:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 194 states have (on average 1.268041237113402) internal successors, (246), 195 states have internal predecessors, (246), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:02:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 390 transitions. [2024-11-28 03:02:47,058 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 390 transitions. Word has length 123 [2024-11-28 03:02:47,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:47,060 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 390 transitions. [2024-11-28 03:02:47,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:02:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 390 transitions. [2024-11-28 03:02:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:02:47,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:47,063 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:47,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:02:47,063 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:02:47,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:47,063 INFO L85 PathProgramCache]: Analyzing trace with hash -49931939, now seen corresponding path program 1 times [2024-11-28 03:02:47,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:47,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264034683] [2024-11-28 03:02:47,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:47,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:01,007 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:03:01,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:01,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264034683] [2024-11-28 03:03:01,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264034683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:01,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:01,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:03:01,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605608566] [2024-11-28 03:03:01,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:01,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:03:01,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:01,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:03:01,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:03:01,009 INFO L87 Difference]: Start difference. First operand 278 states and 390 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:03:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:02,220 INFO L93 Difference]: Finished difference Result 483 states and 676 transitions. [2024-11-28 03:03:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:03:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:03:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:02,223 INFO L225 Difference]: With dead ends: 483 [2024-11-28 03:03:02,223 INFO L226 Difference]: Without dead ends: 327 [2024-11-28 03:03:02,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:03:02,224 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 259 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:02,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 601 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:03:02,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-28 03:03:02,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 280. [2024-11-28 03:03:02,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 196 states have (on average 1.2653061224489797) internal successors, (248), 197 states have internal predecessors, (248), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:03:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 392 transitions. [2024-11-28 03:03:02,252 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 392 transitions. Word has length 123 [2024-11-28 03:03:02,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:02,253 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 392 transitions. [2024-11-28 03:03:02,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:03:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 392 transitions. [2024-11-28 03:03:02,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:03:02,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:02,255 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:02,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:03:02,255 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:03:02,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:02,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1627607207, now seen corresponding path program 1 times [2024-11-28 03:03:02,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:02,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327353299] [2024-11-28 03:03:02,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:02,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:03:19,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:19,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327353299] [2024-11-28 03:03:19,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327353299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:19,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:19,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:03:19,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352751840] [2024-11-28 03:03:19,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:19,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:03:19,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:19,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:03:19,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:03:19,149 INFO L87 Difference]: Start difference. First operand 280 states and 392 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:03:23,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:23,572 INFO L93 Difference]: Finished difference Result 526 states and 729 transitions. [2024-11-28 03:03:23,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:03:23,573 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-11-28 03:03:23,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:23,575 INFO L225 Difference]: With dead ends: 526 [2024-11-28 03:03:23,575 INFO L226 Difference]: Without dead ends: 459 [2024-11-28 03:03:23,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:03:23,578 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 703 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:23,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 657 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:03:23,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-28 03:03:23,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 291. [2024-11-28 03:03:23,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.285024154589372) internal successors, (266), 208 states have internal predecessors, (266), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:03:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 410 transitions. [2024-11-28 03:03:23,605 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 410 transitions. Word has length 124 [2024-11-28 03:03:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:23,606 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 410 transitions. [2024-11-28 03:03:23,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:03:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 410 transitions. [2024-11-28 03:03:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:03:23,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:23,608 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:23,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:03:23,608 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:03:23,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash 147400155, now seen corresponding path program 1 times [2024-11-28 03:03:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:23,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571234337] [2024-11-28 03:03:23,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:23,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:03:23,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:23,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571234337] [2024-11-28 03:03:23,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571234337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:23,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:23,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:03:23,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585987367] [2024-11-28 03:03:23,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:23,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:03:23,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:23,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:03:23,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:03:23,770 INFO L87 Difference]: Start difference. First operand 291 states and 410 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:03:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:23,861 INFO L93 Difference]: Finished difference Result 408 states and 572 transitions. [2024-11-28 03:03:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:03:23,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-28 03:03:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:23,864 INFO L225 Difference]: With dead ends: 408 [2024-11-28 03:03:23,865 INFO L226 Difference]: Without dead ends: 341 [2024-11-28 03:03:23,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:03:23,867 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 49 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:23,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 224 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:03:23,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-28 03:03:23,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 336. [2024-11-28 03:03:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 241 states have (on average 1.2697095435684647) internal successors, (306), 243 states have internal predecessors, (306), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 03:03:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 466 transitions. [2024-11-28 03:03:23,895 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 466 transitions. Word has length 124 [2024-11-28 03:03:23,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:23,895 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 466 transitions. [2024-11-28 03:03:23,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:03:23,896 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 466 transitions. [2024-11-28 03:03:23,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:03:23,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:23,899 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:23,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:03:23,899 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:03:23,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2020634217, now seen corresponding path program 1 times [2024-11-28 03:03:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:23,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044212231] [2024-11-28 03:03:23,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:04:40,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:40,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044212231] [2024-11-28 03:04:40,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044212231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:40,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:40,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:04:40,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394793284] [2024-11-28 03:04:40,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:40,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:04:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:40,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:04:40,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:04:40,540 INFO L87 Difference]: Start difference. First operand 336 states and 466 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:04:46,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:46,630 INFO L93 Difference]: Finished difference Result 680 states and 935 transitions. [2024-11-28 03:04:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:04:46,630 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-11-28 03:04:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:46,633 INFO L225 Difference]: With dead ends: 680 [2024-11-28 03:04:46,633 INFO L226 Difference]: Without dead ends: 580 [2024-11-28 03:04:46,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:04:46,635 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 1353 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:46,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 561 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:04:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-28 03:04:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 352. [2024-11-28 03:04:46,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 257 states have (on average 1.2879377431906616) internal successors, (331), 258 states have internal predecessors, (331), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 03:04:46,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 491 transitions. [2024-11-28 03:04:46,664 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 491 transitions. Word has length 124 [2024-11-28 03:04:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:46,665 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 491 transitions. [2024-11-28 03:04:46,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:04:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 491 transitions. [2024-11-28 03:04:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:04:46,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:46,666 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:46,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:04:46,667 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:46,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:46,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1435209817, now seen corresponding path program 1 times [2024-11-28 03:04:46,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:46,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690212857] [2024-11-28 03:04:46,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:46,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:54,345 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:08:54,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:54,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690212857] [2024-11-28 03:08:54,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690212857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:54,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:54,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 03:08:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925182610] [2024-11-28 03:08:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:54,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:08:54,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:54,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:08:54,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:08:54,346 INFO L87 Difference]: Start difference. First operand 352 states and 491 transitions. Second operand has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:09:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:08,191 INFO L93 Difference]: Finished difference Result 737 states and 1016 transitions. [2024-11-28 03:09:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:09:08,192 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-11-28 03:09:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:08,194 INFO L225 Difference]: With dead ends: 737 [2024-11-28 03:09:08,194 INFO L226 Difference]: Without dead ends: 637 [2024-11-28 03:09:08,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=383, Invalid=1257, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:09:08,196 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 1191 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:08,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 721 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:09:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-28 03:09:08,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 366. [2024-11-28 03:09:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 271 states have (on average 1.3025830258302582) internal successors, (353), 272 states have internal predecessors, (353), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 03:09:08,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 513 transitions. [2024-11-28 03:09:08,229 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 513 transitions. Word has length 124 [2024-11-28 03:09:08,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:08,229 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 513 transitions. [2024-11-28 03:09:08,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:09:08,230 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 513 transitions. [2024-11-28 03:09:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:09:08,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:08,231 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:08,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:09:08,232 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:08,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:08,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1084750117, now seen corresponding path program 1 times [2024-11-28 03:09:08,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:08,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815490843] [2024-11-28 03:09:08,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:08,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:09:08,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:08,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815490843] [2024-11-28 03:09:08,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815490843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:08,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:08,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:09:08,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667617577] [2024-11-28 03:09:08,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:08,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:09:08,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:08,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:09:08,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:09:08,399 INFO L87 Difference]: Start difference. First operand 366 states and 513 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:09:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:08,536 INFO L93 Difference]: Finished difference Result 813 states and 1136 transitions. [2024-11-28 03:09:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:09:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-28 03:09:08,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:08,539 INFO L225 Difference]: With dead ends: 813 [2024-11-28 03:09:08,540 INFO L226 Difference]: Without dead ends: 519 [2024-11-28 03:09:08,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:09:08,541 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 73 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:08,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 282 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:09:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-28 03:09:08,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 466. [2024-11-28 03:09:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 364 states have (on average 1.3104395604395604) internal successors, (477), 367 states have internal predecessors, (477), 84 states have call successors, (84), 17 states have call predecessors, (84), 17 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 03:09:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 645 transitions. [2024-11-28 03:09:08,578 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 645 transitions. Word has length 124 [2024-11-28 03:09:08,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:08,578 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 645 transitions. [2024-11-28 03:09:08,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:09:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 645 transitions. [2024-11-28 03:09:08,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:09:08,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:08,580 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:08,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:09:08,580 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:08,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:08,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2080554075, now seen corresponding path program 1 times [2024-11-28 03:09:08,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:08,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25387243] [2024-11-28 03:09:08,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:08,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:09:08,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:08,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25387243] [2024-11-28 03:09:08,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25387243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:08,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:09:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824225779] [2024-11-28 03:09:08,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:08,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:09:08,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:08,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:09:08,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:09:08,746 INFO L87 Difference]: Start difference. First operand 466 states and 645 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:09:08,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:08,871 INFO L93 Difference]: Finished difference Result 1069 states and 1468 transitions. [2024-11-28 03:09:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:09:08,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-28 03:09:08,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:08,875 INFO L225 Difference]: With dead ends: 1069 [2024-11-28 03:09:08,875 INFO L226 Difference]: Without dead ends: 676 [2024-11-28 03:09:08,877 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 [2024-11-28 03:09:08,877 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 39 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:08,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 351 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:09:08,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-28 03:09:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 664. [2024-11-28 03:09:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 534 states have (on average 1.2865168539325842) internal successors, (687), 543 states have internal predecessors, (687), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:09:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 895 transitions. [2024-11-28 03:09:08,927 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 895 transitions. Word has length 124 [2024-11-28 03:09:08,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:08,927 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 895 transitions. [2024-11-28 03:09:08,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:09:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 895 transitions. [2024-11-28 03:09:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:09:08,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:08,930 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:08,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:09:08,930 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:08,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:08,931 INFO L85 PathProgramCache]: Analyzing trace with hash 685985177, now seen corresponding path program 1 times [2024-11-28 03:09:08,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:08,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470033366] [2024-11-28 03:09:08,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:08,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:09:38,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:38,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470033366] [2024-11-28 03:09:38,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470033366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:38,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:38,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:09:38,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391250914] [2024-11-28 03:09:38,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:38,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:09:38,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:38,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:09:38,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:09:38,027 INFO L87 Difference]: Start difference. First operand 664 states and 895 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:09:40,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:40,198 INFO L93 Difference]: Finished difference Result 1504 states and 2016 transitions. [2024-11-28 03:09:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:09:40,199 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-11-28 03:09:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:40,203 INFO L225 Difference]: With dead ends: 1504 [2024-11-28 03:09:40,203 INFO L226 Difference]: Without dead ends: 913 [2024-11-28 03:09:40,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:09:40,205 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 364 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:40,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 700 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:09:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-11-28 03:09:40,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 662. [2024-11-28 03:09:40,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 532 states have (on average 1.2857142857142858) internal successors, (684), 541 states have internal predecessors, (684), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:09:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 892 transitions. [2024-11-28 03:09:40,263 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 892 transitions. Word has length 124 [2024-11-28 03:09:40,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:40,263 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 892 transitions. [2024-11-28 03:09:40,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:09:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 892 transitions. [2024-11-28 03:09:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:09:40,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:40,265 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:40,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:09:40,265 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:40,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash 978416347, now seen corresponding path program 1 times [2024-11-28 03:09:40,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:40,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304772808] [2024-11-28 03:09:40,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:40,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:09:53,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:53,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304772808] [2024-11-28 03:09:53,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304772808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:53,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:53,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:09:53,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080089316] [2024-11-28 03:09:53,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:53,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:09:53,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:53,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:09:53,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:09:53,462 INFO L87 Difference]: Start difference. First operand 662 states and 892 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:09:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:55,056 INFO L93 Difference]: Finished difference Result 1397 states and 1868 transitions. [2024-11-28 03:09:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:09:55,056 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-28 03:09:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:55,061 INFO L225 Difference]: With dead ends: 1397 [2024-11-28 03:09:55,061 INFO L226 Difference]: Without dead ends: 1129 [2024-11-28 03:09:55,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:09:55,063 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 509 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:55,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 460 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:09:55,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-11-28 03:09:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 681. [2024-11-28 03:09:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 551 states have (on average 1.2921960072595282) internal successors, (712), 560 states have internal predecessors, (712), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:09:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 920 transitions. [2024-11-28 03:09:55,126 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 920 transitions. Word has length 124 [2024-11-28 03:09:55,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:55,126 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 920 transitions. [2024-11-28 03:09:55,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:09:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 920 transitions. [2024-11-28 03:09:55,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:09:55,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:55,128 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:55,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:09:55,128 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:55,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:55,129 INFO L85 PathProgramCache]: Analyzing trace with hash 585389337, now seen corresponding path program 1 times [2024-11-28 03:09:55,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:55,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649316687] [2024-11-28 03:09:55,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:55,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:09,839 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:10:09,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:09,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649316687] [2024-11-28 03:10:09,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649316687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:09,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:09,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:10:09,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119759544] [2024-11-28 03:10:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:09,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:10:09,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:09,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:10:09,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:10:09,841 INFO L87 Difference]: Start difference. First operand 681 states and 920 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:10:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:12,492 INFO L93 Difference]: Finished difference Result 1282 states and 1718 transitions. [2024-11-28 03:10:12,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:10:12,493 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-11-28 03:10:12,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:12,496 INFO L225 Difference]: With dead ends: 1282 [2024-11-28 03:10:12,496 INFO L226 Difference]: Without dead ends: 1014 [2024-11-28 03:10:12,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:10:12,498 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 418 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:12,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 553 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:10:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-28 03:10:12,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 684. [2024-11-28 03:10:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 554 states have (on average 1.2942238267148014) internal successors, (717), 563 states have internal predecessors, (717), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:10:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 925 transitions. [2024-11-28 03:10:12,563 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 925 transitions. Word has length 124 [2024-11-28 03:10:12,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:12,564 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 925 transitions. [2024-11-28 03:10:12,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:10:12,564 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 925 transitions. [2024-11-28 03:10:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:10:12,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:12,565 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:12,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:10:12,566 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:12,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:12,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1934570597, now seen corresponding path program 1 times [2024-11-28 03:10:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:12,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588162313] [2024-11-28 03:10:12,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:12,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:22,313 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:10:22,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:22,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588162313] [2024-11-28 03:10:22,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588162313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:22,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:22,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:10:22,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730508338] [2024-11-28 03:10:22,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:22,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:10:22,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:22,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:10:22,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:10:22,315 INFO L87 Difference]: Start difference. First operand 684 states and 925 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:10:23,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:23,360 INFO L93 Difference]: Finished difference Result 1185 states and 1595 transitions. [2024-11-28 03:10:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:10:23,361 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-28 03:10:23,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:23,363 INFO L225 Difference]: With dead ends: 1185 [2024-11-28 03:10:23,363 INFO L226 Difference]: Without dead ends: 917 [2024-11-28 03:10:23,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:10:23,364 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 278 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:23,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 510 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:10:23,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-28 03:10:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 687. [2024-11-28 03:10:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 557 states have (on average 1.296229802513465) internal successors, (722), 566 states have internal predecessors, (722), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:10:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 930 transitions. [2024-11-28 03:10:23,429 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 930 transitions. Word has length 124 [2024-11-28 03:10:23,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:23,430 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 930 transitions. [2024-11-28 03:10:23,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:10:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 930 transitions. [2024-11-28 03:10:23,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:10:23,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:23,432 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:23,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:10:23,432 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:23,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:23,433 INFO L85 PathProgramCache]: Analyzing trace with hash -253733925, now seen corresponding path program 1 times [2024-11-28 03:10:23,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:23,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196222618] [2024-11-28 03:10:23,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:23,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:10:53,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:53,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196222618] [2024-11-28 03:10:53,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196222618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:53,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:53,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:10:53,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266221887] [2024-11-28 03:10:53,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:53,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:10:53,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:53,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:10:53,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:10:53,697 INFO L87 Difference]: Start difference. First operand 687 states and 930 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:10:56,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:56,249 INFO L93 Difference]: Finished difference Result 1129 states and 1524 transitions. [2024-11-28 03:10:56,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:10:56,249 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-11-28 03:10:56,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:56,253 INFO L225 Difference]: With dead ends: 1129 [2024-11-28 03:10:56,253 INFO L226 Difference]: Without dead ends: 861 [2024-11-28 03:10:56,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:10:56,255 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 297 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:56,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 612 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:10:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-11-28 03:10:56,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 631. [2024-11-28 03:10:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 501 states have (on average 1.2694610778443114) internal successors, (636), 511 states have internal predecessors, (636), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 94 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:10:56,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 844 transitions. [2024-11-28 03:10:56,324 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 844 transitions. Word has length 124 [2024-11-28 03:10:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:56,325 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 844 transitions. [2024-11-28 03:10:56,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:10:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 844 transitions. [2024-11-28 03:10:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:10:56,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:56,326 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:56,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:10:56,327 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:56,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:56,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1521273437, now seen corresponding path program 1 times [2024-11-28 03:10:56,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:56,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910223381] [2024-11-28 03:10:56,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:56,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:10:58,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:58,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910223381] [2024-11-28 03:10:58,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910223381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:58,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:58,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:10:58,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792087391] [2024-11-28 03:10:58,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:58,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:10:58,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:58,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:10:58,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:10:58,580 INFO L87 Difference]: Start difference. First operand 631 states and 844 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:11:02,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:02,079 INFO L93 Difference]: Finished difference Result 1376 states and 1852 transitions. [2024-11-28 03:11:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:11:02,081 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-11-28 03:11:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:02,086 INFO L225 Difference]: With dead ends: 1376 [2024-11-28 03:11:02,086 INFO L226 Difference]: Without dead ends: 1108 [2024-11-28 03:11:02,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:11:02,089 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 631 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:02,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 677 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:11:02,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-28 03:11:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 594. [2024-11-28 03:11:02,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 481 states have (on average 1.2848232848232848) internal successors, (618), 489 states have internal predecessors, (618), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 80 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-28 03:11:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 794 transitions. [2024-11-28 03:11:02,161 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 794 transitions. Word has length 124 [2024-11-28 03:11:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:02,162 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 794 transitions. [2024-11-28 03:11:02,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:11:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 794 transitions. [2024-11-28 03:11:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:11:02,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:02,163 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:02,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:11:02,164 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:02,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:02,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1002958565, now seen corresponding path program 1 times [2024-11-28 03:11:02,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:02,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150444524] [2024-11-28 03:11:02,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:11:16,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:16,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150444524] [2024-11-28 03:11:16,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150444524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:16,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:16,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:11:16,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722489290] [2024-11-28 03:11:16,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:16,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:11:16,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:16,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:11:16,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:11:16,450 INFO L87 Difference]: Start difference. First operand 594 states and 794 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:17,556 INFO L93 Difference]: Finished difference Result 1198 states and 1604 transitions. [2024-11-28 03:11:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:11:17,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-28 03:11:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:17,560 INFO L225 Difference]: With dead ends: 1198 [2024-11-28 03:11:17,561 INFO L226 Difference]: Without dead ends: 726 [2024-11-28 03:11:17,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:11:17,563 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 189 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:17,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 533 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:11:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-28 03:11:17,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 505. [2024-11-28 03:11:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 415 states have (on average 1.2963855421686747) internal successors, (538), 423 states have internal predecessors, (538), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 62 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:11:17,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 678 transitions. [2024-11-28 03:11:17,636 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 678 transitions. Word has length 124 [2024-11-28 03:11:17,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:17,636 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 678 transitions. [2024-11-28 03:11:17,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:17,636 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 678 transitions. [2024-11-28 03:11:17,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:11:17,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:17,638 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:17,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:11:17,638 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:17,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1005825276, now seen corresponding path program 1 times [2024-11-28 03:11:17,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:17,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865407068] [2024-11-28 03:11:17,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:17,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:11:30,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:30,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865407068] [2024-11-28 03:11:30,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865407068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:30,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:30,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:11:30,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66156783] [2024-11-28 03:11:30,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:30,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:11:30,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:30,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:11:30,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:11:30,095 INFO L87 Difference]: Start difference. First operand 505 states and 678 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:11:32,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:32,330 INFO L93 Difference]: Finished difference Result 909 states and 1222 transitions. [2024-11-28 03:11:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:11:32,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 125 [2024-11-28 03:11:32,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:32,334 INFO L225 Difference]: With dead ends: 909 [2024-11-28 03:11:32,334 INFO L226 Difference]: Without dead ends: 623 [2024-11-28 03:11:32,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:11:32,335 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 405 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:32,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 514 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:11:32,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-28 03:11:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 502. [2024-11-28 03:11:32,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 412 states have (on average 1.2936893203883495) internal successors, (533), 420 states have internal predecessors, (533), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 62 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:11:32,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 673 transitions. [2024-11-28 03:11:32,402 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 673 transitions. Word has length 125 [2024-11-28 03:11:32,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:32,402 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 673 transitions. [2024-11-28 03:11:32,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:11:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 673 transitions. [2024-11-28 03:11:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:11:32,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:32,404 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:32,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:11:32,405 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:32,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:32,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1205148972, now seen corresponding path program 1 times [2024-11-28 03:11:32,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:32,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439138187] [2024-11-28 03:11:32,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:32,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:11:36,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:36,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439138187] [2024-11-28 03:11:36,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439138187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:36,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:36,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:11:36,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142765211] [2024-11-28 03:11:36,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:36,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:11:36,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:36,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:11:36,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:11:36,558 INFO L87 Difference]: Start difference. First operand 502 states and 673 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:39,015 INFO L93 Difference]: Finished difference Result 901 states and 1187 transitions. [2024-11-28 03:11:39,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:11:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:11:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:39,018 INFO L225 Difference]: With dead ends: 901 [2024-11-28 03:11:39,018 INFO L226 Difference]: Without dead ends: 899 [2024-11-28 03:11:39,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:11:39,019 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 411 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:39,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 710 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:11:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-11-28 03:11:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 547. [2024-11-28 03:11:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 447 states have (on average 1.2930648769574944) internal successors, (578), 454 states have internal predecessors, (578), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:11:39,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 734 transitions. [2024-11-28 03:11:39,102 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 734 transitions. Word has length 126 [2024-11-28 03:11:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:39,103 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 734 transitions. [2024-11-28 03:11:39,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 734 transitions. [2024-11-28 03:11:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:11:39,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:39,105 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:39,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:11:39,105 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:39,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1463314410, now seen corresponding path program 1 times [2024-11-28 03:11:39,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:39,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477849996] [2024-11-28 03:11:39,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:39,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:11:44,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:44,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477849996] [2024-11-28 03:11:44,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477849996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:44,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:44,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:11:44,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910067148] [2024-11-28 03:11:44,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:44,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:11:44,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:44,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:11:44,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:11:44,129 INFO L87 Difference]: Start difference. First operand 547 states and 734 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:11:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:48,771 INFO L93 Difference]: Finished difference Result 804 states and 1070 transitions. [2024-11-28 03:11:48,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:11:48,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 126 [2024-11-28 03:11:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:48,774 INFO L225 Difference]: With dead ends: 804 [2024-11-28 03:11:48,774 INFO L226 Difference]: Without dead ends: 802 [2024-11-28 03:11:48,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:11:48,775 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 628 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:48,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 517 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:11:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-28 03:11:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 583. [2024-11-28 03:11:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 483 states have (on average 1.308488612836439) internal successors, (632), 490 states have internal predecessors, (632), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:11:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 788 transitions. [2024-11-28 03:11:48,850 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 788 transitions. Word has length 126 [2024-11-28 03:11:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:48,851 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 788 transitions. [2024-11-28 03:11:48,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:11:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 788 transitions. [2024-11-28 03:11:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:11:48,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:48,853 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:48,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:11:48,854 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:48,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:48,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1775256020, now seen corresponding path program 1 times [2024-11-28 03:11:48,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:48,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106922230] [2024-11-28 03:11:48,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:48,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:11:52,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:52,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106922230] [2024-11-28 03:11:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106922230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:52,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:52,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:11:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458211748] [2024-11-28 03:11:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:52,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:11:52,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:52,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:11:52,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:11:52,508 INFO L87 Difference]: Start difference. First operand 583 states and 788 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:54,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:54,354 INFO L93 Difference]: Finished difference Result 1217 states and 1633 transitions. [2024-11-28 03:11:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:11:54,354 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:11:54,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:54,357 INFO L225 Difference]: With dead ends: 1217 [2024-11-28 03:11:54,357 INFO L226 Difference]: Without dead ends: 912 [2024-11-28 03:11:54,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:11:54,359 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 264 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:54,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 856 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:11:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-28 03:11:54,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 595. [2024-11-28 03:11:54,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 495 states have (on average 1.3111111111111111) internal successors, (649), 502 states have internal predecessors, (649), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:11:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 805 transitions. [2024-11-28 03:11:54,476 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 805 transitions. Word has length 126 [2024-11-28 03:11:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:54,476 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 805 transitions. [2024-11-28 03:11:54,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:54,476 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 805 transitions. [2024-11-28 03:11:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:11:54,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:54,477 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:54,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:11:54,478 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:54,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:54,478 INFO L85 PathProgramCache]: Analyzing trace with hash -74714706, now seen corresponding path program 1 times [2024-11-28 03:11:54,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:54,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992219014] [2024-11-28 03:11:54,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:54,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:11:57,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992219014] [2024-11-28 03:11:57,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992219014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:57,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:57,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:11:57,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851729976] [2024-11-28 03:11:57,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:57,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:11:57,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:57,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:11:57,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:11:57,390 INFO L87 Difference]: Start difference. First operand 595 states and 805 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:58,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:58,054 INFO L93 Difference]: Finished difference Result 864 states and 1138 transitions. [2024-11-28 03:11:58,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:11:58,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:11:58,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:58,057 INFO L225 Difference]: With dead ends: 864 [2024-11-28 03:11:58,057 INFO L226 Difference]: Without dead ends: 862 [2024-11-28 03:11:58,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:11:58,058 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 110 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:58,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 784 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:11:58,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-28 03:11:58,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 655. [2024-11-28 03:11:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 555 states have (on average 1.3099099099099099) internal successors, (727), 562 states have internal predecessors, (727), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:11:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 883 transitions. [2024-11-28 03:11:58,125 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 883 transitions. Word has length 126 [2024-11-28 03:11:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:58,126 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 883 transitions. [2024-11-28 03:11:58,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:11:58,126 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 883 transitions. [2024-11-28 03:11:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:11:58,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:58,128 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:58,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:11:58,128 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:58,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1239847598, now seen corresponding path program 1 times [2024-11-28 03:11:58,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:58,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995613594] [2024-11-28 03:11:58,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:58,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:01,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995613594] [2024-11-28 03:12:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995613594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:01,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:01,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:12:01,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852697757] [2024-11-28 03:12:01,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:01,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:12:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:01,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:12:01,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:12:01,464 INFO L87 Difference]: Start difference. First operand 655 states and 883 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:12:05,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:05,599 INFO L93 Difference]: Finished difference Result 1733 states and 2299 transitions. [2024-11-28 03:12:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:12:05,600 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2024-11-28 03:12:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:05,605 INFO L225 Difference]: With dead ends: 1733 [2024-11-28 03:12:05,605 INFO L226 Difference]: Without dead ends: 1392 [2024-11-28 03:12:05,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=222, Invalid=968, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:12:05,607 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 551 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:05,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1094 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:12:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-11-28 03:12:05,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 555. [2024-11-28 03:12:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 463 states have (on average 1.3110151187904968) internal successors, (607), 466 states have internal predecessors, (607), 70 states have call successors, (70), 21 states have call predecessors, (70), 21 states have return successors, (70), 67 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:12:05,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 747 transitions. [2024-11-28 03:12:05,665 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 747 transitions. Word has length 126 [2024-11-28 03:12:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:05,666 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 747 transitions. [2024-11-28 03:12:05,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:12:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 747 transitions. [2024-11-28 03:12:05,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:12:05,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:05,667 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:05,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:12:05,667 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:05,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:05,667 INFO L85 PathProgramCache]: Analyzing trace with hash -225629332, now seen corresponding path program 1 times [2024-11-28 03:12:05,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:05,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331422992] [2024-11-28 03:12:05,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:05,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:09,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:09,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331422992] [2024-11-28 03:12:09,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331422992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:09,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:09,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:12:09,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787338599] [2024-11-28 03:12:09,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:09,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:12:09,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:09,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:12:09,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:12:09,240 INFO L87 Difference]: Start difference. First operand 555 states and 747 transitions. Second operand has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:12:11,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:11,120 INFO L93 Difference]: Finished difference Result 700 states and 937 transitions. [2024-11-28 03:12:11,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:12:11,120 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 126 [2024-11-28 03:12:11,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:11,123 INFO L225 Difference]: With dead ends: 700 [2024-11-28 03:12:11,124 INFO L226 Difference]: Without dead ends: 698 [2024-11-28 03:12:11,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:12:11,125 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 185 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:11,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 546 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:12:11,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-28 03:12:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 621. [2024-11-28 03:12:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 518 states have (on average 1.308880308880309) internal successors, (678), 522 states have internal predecessors, (678), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:12:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 834 transitions. [2024-11-28 03:12:11,234 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 834 transitions. Word has length 126 [2024-11-28 03:12:11,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:11,235 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 834 transitions. [2024-11-28 03:12:11,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:12:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 834 transitions. [2024-11-28 03:12:11,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:12:11,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:11,236 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:11,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:12:11,237 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:11,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:11,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1088932972, now seen corresponding path program 1 times [2024-11-28 03:12:11,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:11,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000418696] [2024-11-28 03:12:11,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:11,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:14,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:14,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000418696] [2024-11-28 03:12:14,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000418696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:14,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:14,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 03:12:14,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822454878] [2024-11-28 03:12:14,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:14,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 03:12:14,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:14,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 03:12:14,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:12:14,577 INFO L87 Difference]: Start difference. First operand 621 states and 834 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:18,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:18,376 INFO L93 Difference]: Finished difference Result 1077 states and 1416 transitions. [2024-11-28 03:12:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:12:18,376 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:12:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:18,379 INFO L225 Difference]: With dead ends: 1077 [2024-11-28 03:12:18,379 INFO L226 Difference]: Without dead ends: 1075 [2024-11-28 03:12:18,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=239, Invalid=1021, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:12:18,380 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 338 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:18,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 771 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:12:18,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2024-11-28 03:12:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 632. [2024-11-28 03:12:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 529 states have (on average 1.3119092627599245) internal successors, (694), 533 states have internal predecessors, (694), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:12:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 850 transitions. [2024-11-28 03:12:18,461 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 850 transitions. Word has length 126 [2024-11-28 03:12:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:18,461 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 850 transitions. [2024-11-28 03:12:18,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:18,462 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 850 transitions. [2024-11-28 03:12:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:12:18,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:18,463 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:18,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:12:18,463 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:18,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash -190930706, now seen corresponding path program 1 times [2024-11-28 03:12:18,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:18,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295075330] [2024-11-28 03:12:18,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:18,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:20,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295075330] [2024-11-28 03:12:20,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295075330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:20,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:20,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:12:20,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274563676] [2024-11-28 03:12:20,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:20,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:12:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:20,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:12:20,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:12:20,103 INFO L87 Difference]: Start difference. First operand 632 states and 850 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:21,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:21,330 INFO L93 Difference]: Finished difference Result 1097 states and 1477 transitions. [2024-11-28 03:12:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:12:21,331 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:12:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:21,333 INFO L225 Difference]: With dead ends: 1097 [2024-11-28 03:12:21,333 INFO L226 Difference]: Without dead ends: 818 [2024-11-28 03:12:21,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:12:21,334 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 135 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:21,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 915 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:12:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-28 03:12:21,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 667. [2024-11-28 03:12:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 564 states have (on average 1.3120567375886525) internal successors, (740), 568 states have internal predecessors, (740), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:12:21,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 896 transitions. [2024-11-28 03:12:21,423 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 896 transitions. Word has length 126 [2024-11-28 03:12:21,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:21,423 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 896 transitions. [2024-11-28 03:12:21,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:21,423 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 896 transitions. [2024-11-28 03:12:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:12:21,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:21,424 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:21,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:12:21,425 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:21,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:21,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1627850798, now seen corresponding path program 1 times [2024-11-28 03:12:21,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:21,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007872387] [2024-11-28 03:12:21,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:21,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:23,774 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:23,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:23,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007872387] [2024-11-28 03:12:23,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007872387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:23,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:23,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:12:23,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667155784] [2024-11-28 03:12:23,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:23,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:12:23,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:23,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:12:23,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:12:23,775 INFO L87 Difference]: Start difference. First operand 667 states and 896 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:24,736 INFO L93 Difference]: Finished difference Result 867 states and 1149 transitions. [2024-11-28 03:12:24,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:12:24,736 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:12:24,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:24,739 INFO L225 Difference]: With dead ends: 867 [2024-11-28 03:12:24,739 INFO L226 Difference]: Without dead ends: 865 [2024-11-28 03:12:24,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:12:24,740 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 195 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:24,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 818 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:12:24,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-28 03:12:24,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 656. [2024-11-28 03:12:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 553 states have (on average 1.305605786618445) internal successors, (722), 557 states have internal predecessors, (722), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:12:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 878 transitions. [2024-11-28 03:12:24,819 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 878 transitions. Word has length 126 [2024-11-28 03:12:24,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:24,820 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 878 transitions. [2024-11-28 03:12:24,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 878 transitions. [2024-11-28 03:12:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:12:24,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:24,822 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:24,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:12:24,822 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:24,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1352554194, now seen corresponding path program 1 times [2024-11-28 03:12:24,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:24,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991024531] [2024-11-28 03:12:24,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:24,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:28,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:28,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991024531] [2024-11-28 03:12:28,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991024531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:28,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:28,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:12:28,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487864982] [2024-11-28 03:12:28,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:28,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:12:28,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:28,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:12:28,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:12:28,358 INFO L87 Difference]: Start difference. First operand 656 states and 878 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:12:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:30,285 INFO L93 Difference]: Finished difference Result 1131 states and 1509 transitions. [2024-11-28 03:12:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:12:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2024-11-28 03:12:30,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:30,290 INFO L225 Difference]: With dead ends: 1131 [2024-11-28 03:12:30,290 INFO L226 Difference]: Without dead ends: 818 [2024-11-28 03:12:30,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:12:30,292 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 364 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:30,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 822 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:12:30,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-28 03:12:30,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 664. [2024-11-28 03:12:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 561 states have (on average 1.3083778966131907) internal successors, (734), 565 states have internal predecessors, (734), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:12:30,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 890 transitions. [2024-11-28 03:12:30,385 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 890 transitions. Word has length 126 [2024-11-28 03:12:30,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:30,385 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 890 transitions. [2024-11-28 03:12:30,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:12:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 890 transitions. [2024-11-28 03:12:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:12:30,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:30,387 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:30,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:12:30,387 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:30,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:30,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1662549424, now seen corresponding path program 1 times [2024-11-28 03:12:30,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:30,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436147076] [2024-11-28 03:12:30,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:30,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:31,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:31,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436147076] [2024-11-28 03:12:31,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436147076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:31,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:31,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:12:31,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466125590] [2024-11-28 03:12:31,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:31,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:12:31,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:31,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:12:31,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:12:31,984 INFO L87 Difference]: Start difference. First operand 664 states and 890 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:33,662 INFO L93 Difference]: Finished difference Result 1237 states and 1642 transitions. [2024-11-28 03:12:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:12:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:12:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:33,666 INFO L225 Difference]: With dead ends: 1237 [2024-11-28 03:12:33,666 INFO L226 Difference]: Without dead ends: 920 [2024-11-28 03:12:33,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:12:33,667 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 185 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:33,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 996 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:12:33,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-28 03:12:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 722. [2024-11-28 03:12:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 598 states have (on average 1.2876254180602007) internal successors, (770), 603 states have internal predecessors, (770), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:12:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 958 transitions. [2024-11-28 03:12:33,806 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 958 transitions. Word has length 126 [2024-11-28 03:12:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:33,807 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 958 transitions. [2024-11-28 03:12:33,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 958 transitions. [2024-11-28 03:12:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:12:33,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:33,808 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:33,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:12:33,808 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:33,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1511634798, now seen corresponding path program 1 times [2024-11-28 03:12:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:33,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049635175] [2024-11-28 03:12:33,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:33,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:35,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:35,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049635175] [2024-11-28 03:12:35,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049635175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:35,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:35,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:12:35,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378354856] [2024-11-28 03:12:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:35,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:12:35,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:35,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:12:35,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:12:35,595 INFO L87 Difference]: Start difference. First operand 722 states and 958 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:36,677 INFO L93 Difference]: Finished difference Result 867 states and 1142 transitions. [2024-11-28 03:12:36,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:12:36,678 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-11-28 03:12:36,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:36,680 INFO L225 Difference]: With dead ends: 867 [2024-11-28 03:12:36,680 INFO L226 Difference]: Without dead ends: 865 [2024-11-28 03:12:36,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:12:36,681 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 166 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:36,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 805 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:12:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-28 03:12:36,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 696. [2024-11-28 03:12:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 582 states have (on average 1.288659793814433) internal successors, (750), 588 states have internal predecessors, (750), 86 states have call successors, (86), 27 states have call predecessors, (86), 27 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:12:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 922 transitions. [2024-11-28 03:12:36,767 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 922 transitions. Word has length 126 [2024-11-28 03:12:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:36,767 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 922 transitions. [2024-11-28 03:12:36,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 922 transitions. [2024-11-28 03:12:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:12:36,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:36,768 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:36,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:12:36,769 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:36,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:36,769 INFO L85 PathProgramCache]: Analyzing trace with hash -102410459, now seen corresponding path program 1 times [2024-11-28 03:12:36,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:36,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120510061] [2024-11-28 03:12:36,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:36,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:36,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:36,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120510061] [2024-11-28 03:12:36,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120510061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:36,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:36,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:12:36,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911733585] [2024-11-28 03:12:36,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:36,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:12:36,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:36,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:12:36,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:12:36,880 INFO L87 Difference]: Start difference. First operand 696 states and 922 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:37,204 INFO L93 Difference]: Finished difference Result 1531 states and 2024 transitions. [2024-11-28 03:12:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:12:37,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2024-11-28 03:12:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:37,207 INFO L225 Difference]: With dead ends: 1531 [2024-11-28 03:12:37,207 INFO L226 Difference]: Without dead ends: 870 [2024-11-28 03:12:37,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:12:37,209 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 65 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:37,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 385 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:12:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-28 03:12:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 703. [2024-11-28 03:12:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 589 states have (on average 1.2852292020373515) internal successors, (757), 595 states have internal predecessors, (757), 86 states have call successors, (86), 27 states have call predecessors, (86), 27 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:12:37,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 929 transitions. [2024-11-28 03:12:37,329 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 929 transitions. Word has length 128 [2024-11-28 03:12:37,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:37,330 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 929 transitions. [2024-11-28 03:12:37,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 929 transitions. [2024-11-28 03:12:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:12:37,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:37,331 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:37,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:12:37,332 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:37,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1494996237, now seen corresponding path program 1 times [2024-11-28 03:12:37,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:37,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425573787] [2024-11-28 03:12:37,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:37,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:37,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:37,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425573787] [2024-11-28 03:12:37,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425573787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:37,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:37,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:12:37,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094288062] [2024-11-28 03:12:37,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:37,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:12:37,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:37,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:12:37,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:12:37,429 INFO L87 Difference]: Start difference. First operand 703 states and 929 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:37,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:37,754 INFO L93 Difference]: Finished difference Result 1699 states and 2253 transitions. [2024-11-28 03:12:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:12:37,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2024-11-28 03:12:37,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:37,759 INFO L225 Difference]: With dead ends: 1699 [2024-11-28 03:12:37,759 INFO L226 Difference]: Without dead ends: 1031 [2024-11-28 03:12:37,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:12:37,761 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 67 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:37,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 334 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:12:37,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-28 03:12:37,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 864. [2024-11-28 03:12:37,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 750 states have (on average 1.308) internal successors, (981), 756 states have internal predecessors, (981), 86 states have call successors, (86), 27 states have call predecessors, (86), 27 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:12:37,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1153 transitions. [2024-11-28 03:12:37,882 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1153 transitions. Word has length 128 [2024-11-28 03:12:37,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:37,882 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1153 transitions. [2024-11-28 03:12:37,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1153 transitions. [2024-11-28 03:12:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 03:12:37,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:37,884 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:37,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:12:37,884 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:37,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:37,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1844978669, now seen corresponding path program 1 times [2024-11-28 03:12:37,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:37,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658058518] [2024-11-28 03:12:37,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:37,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:37,927 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:37,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:37,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658058518] [2024-11-28 03:12:37,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658058518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:37,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:37,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:12:37,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993285776] [2024-11-28 03:12:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:37,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:12:37,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:37,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:12:37,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:12:37,928 INFO L87 Difference]: Start difference. First operand 864 states and 1153 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:38,127 INFO L93 Difference]: Finished difference Result 2170 states and 2871 transitions. [2024-11-28 03:12:38,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:12:38,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-11-28 03:12:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:38,133 INFO L225 Difference]: With dead ends: 2170 [2024-11-28 03:12:38,133 INFO L226 Difference]: Without dead ends: 1341 [2024-11-28 03:12:38,135 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 [2024-11-28 03:12:38,136 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 55 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:38,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 193 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:12:38,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-28 03:12:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1334. [2024-11-28 03:12:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1164 states have (on average 1.2654639175257731) internal successors, (1473), 1177 states have internal predecessors, (1473), 124 states have call successors, (124), 45 states have call predecessors, (124), 45 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 03:12:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1721 transitions. [2024-11-28 03:12:38,320 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1721 transitions. Word has length 129 [2024-11-28 03:12:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:38,320 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 1721 transitions. [2024-11-28 03:12:38,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1721 transitions. [2024-11-28 03:12:38,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:12:38,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:38,321 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:38,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 03:12:38,322 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:38,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:38,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1285604853, now seen corresponding path program 1 times [2024-11-28 03:12:38,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:38,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275009876] [2024-11-28 03:12:38,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:38,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:38,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:38,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275009876] [2024-11-28 03:12:38,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275009876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:38,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:38,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:12:38,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259117699] [2024-11-28 03:12:38,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:38,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:12:38,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:38,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:12:38,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:12:38,393 INFO L87 Difference]: Start difference. First operand 1334 states and 1721 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:38,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:38,715 INFO L93 Difference]: Finished difference Result 2509 states and 3228 transitions. [2024-11-28 03:12:38,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:12:38,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:12:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:38,720 INFO L225 Difference]: With dead ends: 2509 [2024-11-28 03:12:38,721 INFO L226 Difference]: Without dead ends: 1214 [2024-11-28 03:12:38,723 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 [2024-11-28 03:12:38,723 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 43 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:38,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 190 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:12:38,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-11-28 03:12:38,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1012. [2024-11-28 03:12:38,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 892 states have (on average 1.2623318385650224) internal successors, (1126), 898 states have internal predecessors, (1126), 86 states have call successors, (86), 33 states have call predecessors, (86), 33 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:12:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1298 transitions. [2024-11-28 03:12:38,885 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1298 transitions. Word has length 130 [2024-11-28 03:12:38,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:38,886 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1298 transitions. [2024-11-28 03:12:38,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:38,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1298 transitions. [2024-11-28 03:12:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:12:38,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:38,887 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:38,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 03:12:38,887 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:38,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:38,888 INFO L85 PathProgramCache]: Analyzing trace with hash -781709524, now seen corresponding path program 1 times [2024-11-28 03:12:38,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:38,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338943374] [2024-11-28 03:12:38,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:40,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338943374] [2024-11-28 03:12:40,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338943374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:40,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:40,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:12:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458493416] [2024-11-28 03:12:40,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:40,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:12:40,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:40,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:12:40,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:12:40,972 INFO L87 Difference]: Start difference. First operand 1012 states and 1298 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:42,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:42,119 INFO L93 Difference]: Finished difference Result 1193 states and 1511 transitions. [2024-11-28 03:12:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:12:42,120 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:12:42,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:42,125 INFO L225 Difference]: With dead ends: 1193 [2024-11-28 03:12:42,125 INFO L226 Difference]: Without dead ends: 1191 [2024-11-28 03:12:42,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:12:42,126 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 106 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:42,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1211 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:12:42,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2024-11-28 03:12:42,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1013. [2024-11-28 03:12:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 893 states have (on average 1.2620380739081747) internal successors, (1127), 899 states have internal predecessors, (1127), 86 states have call successors, (86), 33 states have call predecessors, (86), 33 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:12:42,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1299 transitions. [2024-11-28 03:12:42,289 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1299 transitions. Word has length 130 [2024-11-28 03:12:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:42,290 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1299 transitions. [2024-11-28 03:12:42,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:42,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1299 transitions. [2024-11-28 03:12:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:12:42,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:42,291 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:42,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 03:12:42,292 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:42,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:42,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1792826774, now seen corresponding path program 1 times [2024-11-28 03:12:42,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:42,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848327287] [2024-11-28 03:12:42,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:42,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:47,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:47,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848327287] [2024-11-28 03:12:47,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848327287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:47,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:47,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-28 03:12:47,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828660268] [2024-11-28 03:12:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:47,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:12:47,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:47,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:12:47,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:12:47,124 INFO L87 Difference]: Start difference. First operand 1013 states and 1299 transitions. Second operand has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:54,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:54,669 INFO L93 Difference]: Finished difference Result 1917 states and 2377 transitions. [2024-11-28 03:12:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 03:12:54,670 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:12:54,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:54,674 INFO L225 Difference]: With dead ends: 1917 [2024-11-28 03:12:54,674 INFO L226 Difference]: Without dead ends: 1915 [2024-11-28 03:12:54,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=335, Invalid=1645, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 03:12:54,677 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 605 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:54,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 932 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:12:54,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2024-11-28 03:12:54,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1056. [2024-11-28 03:12:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 926 states have (on average 1.2613390928725703) internal successors, (1168), 931 states have internal predecessors, (1168), 94 states have call successors, (94), 35 states have call predecessors, (94), 35 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:12:54,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1356 transitions. [2024-11-28 03:12:54,815 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1356 transitions. Word has length 130 [2024-11-28 03:12:54,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:54,815 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1356 transitions. [2024-11-28 03:12:54,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:54,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1356 transitions. [2024-11-28 03:12:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:12:54,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:54,817 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:54,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 03:12:54,817 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:54,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:54,818 INFO L85 PathProgramCache]: Analyzing trace with hash -207720404, now seen corresponding path program 1 times [2024-11-28 03:12:54,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:54,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270222956] [2024-11-28 03:12:54,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:54,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:12:56,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:56,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270222956] [2024-11-28 03:12:56,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270222956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:56,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:56,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:12:56,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903133329] [2024-11-28 03:12:56,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:56,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:12:56,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:56,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:12:56,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:12:56,546 INFO L87 Difference]: Start difference. First operand 1056 states and 1356 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:58,321 INFO L93 Difference]: Finished difference Result 1899 states and 2424 transitions. [2024-11-28 03:12:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:12:58,322 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:12:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:58,326 INFO L225 Difference]: With dead ends: 1899 [2024-11-28 03:12:58,326 INFO L226 Difference]: Without dead ends: 1367 [2024-11-28 03:12:58,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:12:58,328 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 165 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:58,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1104 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:12:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-28 03:12:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1102. [2024-11-28 03:12:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 964 states have (on average 1.2572614107883817) internal successors, (1212), 970 states have internal predecessors, (1212), 100 states have call successors, (100), 37 states have call predecessors, (100), 37 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:12:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1412 transitions. [2024-11-28 03:12:58,497 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1412 transitions. Word has length 130 [2024-11-28 03:12:58,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:58,497 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1412 transitions. [2024-11-28 03:12:58,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:12:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1412 transitions. [2024-11-28 03:12:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:12:58,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:58,499 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:58,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-28 03:12:58,499 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:58,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:58,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1924909870, now seen corresponding path program 1 times [2024-11-28 03:12:58,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:58,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913569763] [2024-11-28 03:12:58,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:58,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:13:02,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:02,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913569763] [2024-11-28 03:13:02,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913569763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:02,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:02,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:13:02,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002190336] [2024-11-28 03:13:02,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:02,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:13:02,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:02,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:13:02,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:13:02,139 INFO L87 Difference]: Start difference. First operand 1102 states and 1412 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:03,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:03,236 INFO L93 Difference]: Finished difference Result 1254 states and 1579 transitions. [2024-11-28 03:13:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:13:03,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:13:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:03,241 INFO L225 Difference]: With dead ends: 1254 [2024-11-28 03:13:03,241 INFO L226 Difference]: Without dead ends: 1252 [2024-11-28 03:13:03,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:13:03,243 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 91 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:03,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 982 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:13:03,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-11-28 03:13:03,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1123. [2024-11-28 03:13:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 985 states have (on average 1.2527918781725889) internal successors, (1234), 991 states have internal predecessors, (1234), 100 states have call successors, (100), 37 states have call predecessors, (100), 37 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:13:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1434 transitions. [2024-11-28 03:13:03,438 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1434 transitions. Word has length 130 [2024-11-28 03:13:03,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:03,438 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1434 transitions. [2024-11-28 03:13:03,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1434 transitions. [2024-11-28 03:13:03,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:13:03,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:03,440 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:03,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 03:13:03,440 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:03,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:03,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1796068306, now seen corresponding path program 1 times [2024-11-28 03:13:03,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:03,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891806323] [2024-11-28 03:13:03,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:03,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:13:06,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:06,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891806323] [2024-11-28 03:13:06,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891806323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:06,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:06,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:13:06,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447138119] [2024-11-28 03:13:06,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:06,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:13:06,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:06,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:13:06,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:13:06,345 INFO L87 Difference]: Start difference. First operand 1123 states and 1434 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:09,270 INFO L93 Difference]: Finished difference Result 2593 states and 3246 transitions. [2024-11-28 03:13:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:13:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:13:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:09,277 INFO L225 Difference]: With dead ends: 2593 [2024-11-28 03:13:09,277 INFO L226 Difference]: Without dead ends: 2014 [2024-11-28 03:13:09,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:13:09,279 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 249 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:09,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1352 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:13:09,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2024-11-28 03:13:09,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1132. [2024-11-28 03:13:09,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 994 states have (on average 1.2535211267605635) internal successors, (1246), 1000 states have internal predecessors, (1246), 100 states have call successors, (100), 37 states have call predecessors, (100), 37 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:13:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1446 transitions. [2024-11-28 03:13:09,412 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1446 transitions. Word has length 130 [2024-11-28 03:13:09,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:09,413 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1446 transitions. [2024-11-28 03:13:09,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1446 transitions. [2024-11-28 03:13:09,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:13:09,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:09,415 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:09,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-28 03:13:09,415 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:09,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:09,415 INFO L85 PathProgramCache]: Analyzing trace with hash 696702188, now seen corresponding path program 1 times [2024-11-28 03:13:09,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:09,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771668236] [2024-11-28 03:13:09,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:09,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:13:14,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771668236] [2024-11-28 03:13:14,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771668236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:14,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:14,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-28 03:13:14,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211524757] [2024-11-28 03:13:14,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:14,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:13:14,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:14,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:13:14,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:13:14,902 INFO L87 Difference]: Start difference. First operand 1132 states and 1446 transitions. Second operand has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 24 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:21,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:21,614 INFO L93 Difference]: Finished difference Result 1808 states and 2246 transitions. [2024-11-28 03:13:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 03:13:21,614 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 24 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:13:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:21,620 INFO L225 Difference]: With dead ends: 1808 [2024-11-28 03:13:21,620 INFO L226 Difference]: Without dead ends: 1806 [2024-11-28 03:13:21,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=537, Invalid=2433, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 03:13:21,622 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 264 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:21,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1238 Invalid, 2476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:13:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2024-11-28 03:13:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1331. [2024-11-28 03:13:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1167 states have (on average 1.2390745501285347) internal successors, (1446), 1175 states have internal predecessors, (1446), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:13:21,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 1682 transitions. [2024-11-28 03:13:21,783 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 1682 transitions. Word has length 130 [2024-11-28 03:13:21,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:21,783 INFO L471 AbstractCegarLoop]: Abstraction has 1331 states and 1682 transitions. [2024-11-28 03:13:21,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 24 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:21,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 1682 transitions. [2024-11-28 03:13:21,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:13:21,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:21,785 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:21,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-28 03:13:21,785 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:21,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1270691308, now seen corresponding path program 1 times [2024-11-28 03:13:21,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:21,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409861085] [2024-11-28 03:13:21,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:21,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:13:24,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:24,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409861085] [2024-11-28 03:13:24,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409861085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:24,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:24,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:13:24,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767500015] [2024-11-28 03:13:24,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:24,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:13:24,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:24,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:13:24,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:13:24,128 INFO L87 Difference]: Start difference. First operand 1331 states and 1682 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:25,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:25,606 INFO L93 Difference]: Finished difference Result 1565 states and 1960 transitions. [2024-11-28 03:13:25,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:13:25,607 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-11-28 03:13:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:25,611 INFO L225 Difference]: With dead ends: 1565 [2024-11-28 03:13:25,611 INFO L226 Difference]: Without dead ends: 1563 [2024-11-28 03:13:25,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:13:25,612 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 147 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:25,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 961 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:13:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-28 03:13:25,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1342. [2024-11-28 03:13:25,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1178 states have (on average 1.2419354838709677) internal successors, (1463), 1186 states have internal predecessors, (1463), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:13:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1699 transitions. [2024-11-28 03:13:25,835 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1699 transitions. Word has length 130 [2024-11-28 03:13:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:25,836 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1699 transitions. [2024-11-28 03:13:25,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:13:25,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1699 transitions. [2024-11-28 03:13:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:13:25,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:25,838 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:25,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-28 03:13:25,838 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:25,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash -317656594, now seen corresponding path program 1 times [2024-11-28 03:13:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:25,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644878060] [2024-11-28 03:13:25,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:25,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:13:33,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:33,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644878060] [2024-11-28 03:13:33,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644878060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:33,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:33,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-28 03:13:33,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042247065] [2024-11-28 03:13:33,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:33,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:13:33,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:33,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:13:33,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:13:33,576 INFO L87 Difference]: Start difference. First operand 1342 states and 1699 transitions. Second operand has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:13:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:38,995 INFO L93 Difference]: Finished difference Result 1797 states and 2228 transitions. [2024-11-28 03:13:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:13:38,998 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 130 [2024-11-28 03:13:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:39,002 INFO L225 Difference]: With dead ends: 1797 [2024-11-28 03:13:39,003 INFO L226 Difference]: Without dead ends: 1795 [2024-11-28 03:13:39,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=365, Invalid=1441, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 03:13:39,004 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 366 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 2372 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 2456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:39,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1230 Invalid, 2456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2372 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 03:13:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2024-11-28 03:13:39,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1335. [2024-11-28 03:13:39,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1171 states have (on average 1.2433817250213492) internal successors, (1456), 1179 states have internal predecessors, (1456), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:13:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1692 transitions. [2024-11-28 03:13:39,166 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1692 transitions. Word has length 130 [2024-11-28 03:13:39,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:39,167 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1692 transitions. [2024-11-28 03:13:39,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 03:13:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1692 transitions. [2024-11-28 03:13:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:13:39,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:39,168 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:39,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 03:13:39,168 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:39,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:39,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1652278164, now seen corresponding path program 1 times [2024-11-28 03:13:39,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:39,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959402689] [2024-11-28 03:13:39,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:39,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat