./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/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_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/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 64bit --witnessprinter.graph.data.programhash 875156c3731c0a5bf4c4c8e31515b41d84546cbf12ddfa7ae901dd39a126b063 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:32:53,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:32:53,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:32:53,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:32:53,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:32:53,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:32:53,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:32:53,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:32:53,469 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:32:53,469 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:32:53,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:32:53,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:32:53,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:32:53,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:32:53,470 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:32:53,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:32:53,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:32:53,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:32:53,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:32:53,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:32:53,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:32:53,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:32:53,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:32:53,471 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:32:53,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:32:53,472 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:32:53,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:53,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:53,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:53,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:53,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:32:53,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:53,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:53,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:53,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:53,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:32:53,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:32:53,474 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:32:53,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:32:53,474 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:32:53,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:32:53,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:32:53,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:32:53,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:32:53,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:32:53,475 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_a3f8d518-237f-4c23-999c-024edd12c569/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 875156c3731c0a5bf4c4c8e31515b41d84546cbf12ddfa7ae901dd39a126b063 [2024-11-28 03:32:53,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:32:53,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:32:53,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:32:53,829 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:32:53,830 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:32:53,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-back-serstep.c [2024-11-28 03:32:57,158 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/data/f4c56f7c0/f20b95be7fa5406398a729e78af1d94c/FLAGde06668a8 [2024-11-28 03:32:57,558 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:32:57,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-back-serstep.c [2024-11-28 03:32:57,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/data/f4c56f7c0/f20b95be7fa5406398a729e78af1d94c/FLAGde06668a8 [2024-11-28 03:32:57,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/data/f4c56f7c0/f20b95be7fa5406398a729e78af1d94c [2024-11-28 03:32:57,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:32:57,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:32:57,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:57,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:32:57,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:32:57,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40273e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:57, skipping insertion in model container [2024-11-28 03:32:57,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:57" (1/1) ... [2024-11-28 03:32:57,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:32:57,919 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_a3f8d518-237f-4c23-999c-024edd12c569/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-back-serstep.c[1172,1185] [2024-11-28 03:32:58,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:58,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:32:58,415 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_a3f8d518-237f-4c23-999c-024edd12c569/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.loyd.1.prop1-back-serstep.c[1172,1185] [2024-11-28 03:32:58,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:58,655 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:32:58,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58 WrapperNode [2024-11-28 03:32:58,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:58,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:58,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:32:58,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:32:58,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,082 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2807 [2024-11-28 03:32:59,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:59,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:32:59,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:32:59,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:32:59,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,170 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,348 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 03:32:59,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,466 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:32:59,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:32:59,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:32:59,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:32:59,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:59,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:59,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:59,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:59,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:32:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:32:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:32:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:32:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:33:00,528 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:33:00,531 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:33:05,106 INFO L? ?]: Removed 1697 outVars from TransFormulas that were not future-live. [2024-11-28 03:33:05,106 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:33:05,161 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:33:05,165 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:33:05,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:05 BoogieIcfgContainer [2024-11-28 03:33:05,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:33:05,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:33:05,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:33:05,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:33:05,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:32:57" (1/3) ... [2024-11-28 03:33:05,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594a133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:05, skipping insertion in model container [2024-11-28 03:33:05,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (2/3) ... [2024-11-28 03:33:05,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594a133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:05, skipping insertion in model container [2024-11-28 03:33:05,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:05" (3/3) ... [2024-11-28 03:33:05,185 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.loyd.1.prop1-back-serstep.c [2024-11-28 03:33:05,205 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:33:05,209 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.loyd.1.prop1-back-serstep.c that has 1 procedures, 818 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:33:05,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:05,332 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;@6900e70c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:05,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:33:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.4987745098039216) internal successors, (1223), 817 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 03:33:05,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:05,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:05,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:05,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1674452356, now seen corresponding path program 1 times [2024-11-28 03:33:05,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:05,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549676334] [2024-11-28 03:33:05,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:05,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:07,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:07,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549676334] [2024-11-28 03:33:07,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549676334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:07,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:07,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:07,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005741100] [2024-11-28 03:33:07,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:07,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:07,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:07,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:07,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:07,063 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.4987745098039216) internal successors, (1223), 817 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:07,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:07,274 INFO L93 Difference]: Finished difference Result 1581 states and 2367 transitions. [2024-11-28 03:33:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:07,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-28 03:33:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:07,300 INFO L225 Difference]: With dead ends: 1581 [2024-11-28 03:33:07,301 INFO L226 Difference]: Without dead ends: 817 [2024-11-28 03:33:07,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 03:33:07,317 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:07,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3645 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:07,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-11-28 03:33:07,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 817. [2024-11-28 03:33:07,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 816 states have (on average 1.4963235294117647) internal successors, (1221), 816 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1221 transitions. [2024-11-28 03:33:07,419 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1221 transitions. Word has length 87 [2024-11-28 03:33:07,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:07,420 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1221 transitions. [2024-11-28 03:33:07,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1221 transitions. [2024-11-28 03:33:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:33:07,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:07,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:07,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:33:07,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:07,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash 370111170, now seen corresponding path program 1 times [2024-11-28 03:33:07,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:07,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499470964] [2024-11-28 03:33:07,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:07,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:07,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:07,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499470964] [2024-11-28 03:33:07,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499470964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:07,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568887597] [2024-11-28 03:33:07,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:07,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:07,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:07,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:07,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:07,967 INFO L87 Difference]: Start difference. First operand 817 states and 1221 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:08,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:08,046 INFO L93 Difference]: Finished difference Result 1582 states and 2365 transitions. [2024-11-28 03:33:08,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:08,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-28 03:33:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:08,051 INFO L225 Difference]: With dead ends: 1582 [2024-11-28 03:33:08,052 INFO L226 Difference]: Without dead ends: 819 [2024-11-28 03:33:08,053 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 03:33:08,054 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:08,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-28 03:33:08,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2024-11-28 03:33:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 818 states have (on average 1.4951100244498778) internal successors, (1223), 818 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1223 transitions. [2024-11-28 03:33:08,107 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1223 transitions. Word has length 88 [2024-11-28 03:33:08,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:08,109 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1223 transitions. [2024-11-28 03:33:08,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:08,110 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1223 transitions. [2024-11-28 03:33:08,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 03:33:08,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:08,113 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:08,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:33:08,117 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:08,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1785546269, now seen corresponding path program 1 times [2024-11-28 03:33:08,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:08,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645251994] [2024-11-28 03:33:08,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:08,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:08,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:08,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645251994] [2024-11-28 03:33:08,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645251994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:08,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:08,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:08,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582404893] [2024-11-28 03:33:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:08,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:08,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:08,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:08,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:08,683 INFO L87 Difference]: Start difference. First operand 819 states and 1223 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:08,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:08,850 INFO L93 Difference]: Finished difference Result 2335 states and 3490 transitions. [2024-11-28 03:33:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:08,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-28 03:33:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:08,862 INFO L225 Difference]: With dead ends: 2335 [2024-11-28 03:33:08,863 INFO L226 Difference]: Without dead ends: 1570 [2024-11-28 03:33:08,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 03:33:08,866 INFO L435 NwaCegarLoop]: 1215 mSDtfsCounter, 1122 mSDsluCounter, 3560 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 4775 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:08,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 4775 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-28 03:33:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 925. [2024-11-28 03:33:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.4945887445887447) internal successors, (1381), 924 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:08,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1381 transitions. [2024-11-28 03:33:08,917 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1381 transitions. Word has length 89 [2024-11-28 03:33:08,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:08,920 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1381 transitions. [2024-11-28 03:33:08,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1381 transitions. [2024-11-28 03:33:08,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-28 03:33:08,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:08,939 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:08,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:33:08,940 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:08,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1948426932, now seen corresponding path program 1 times [2024-11-28 03:33:08,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:08,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158064712] [2024-11-28 03:33:08,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:08,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:12,569 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 03:33:12,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:12,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158064712] [2024-11-28 03:33:12,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158064712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:12,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:12,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:12,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213152084] [2024-11-28 03:33:12,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:12,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:12,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:12,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:12,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:12,574 INFO L87 Difference]: Start difference. First operand 925 states and 1381 transitions. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:12,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:12,650 INFO L93 Difference]: Finished difference Result 1694 states and 2529 transitions. [2024-11-28 03:33:12,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:12,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 470 [2024-11-28 03:33:12,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:12,659 INFO L225 Difference]: With dead ends: 1694 [2024-11-28 03:33:12,659 INFO L226 Difference]: Without dead ends: 929 [2024-11-28 03:33:12,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:12,662 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:12,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-28 03:33:12,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 925. [2024-11-28 03:33:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.4945887445887447) internal successors, (1381), 924 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1381 transitions. [2024-11-28 03:33:12,707 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1381 transitions. Word has length 470 [2024-11-28 03:33:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:12,709 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1381 transitions. [2024-11-28 03:33:12,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1381 transitions. [2024-11-28 03:33:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:33:12,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:12,727 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:12,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:33:12,727 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:12,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1180580082, now seen corresponding path program 1 times [2024-11-28 03:33:12,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431471750] [2024-11-28 03:33:12,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-28 03:33:15,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:15,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431471750] [2024-11-28 03:33:15,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431471750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:15,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069068443] [2024-11-28 03:33:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:15,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:15,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:15,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:15,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:15,821 INFO L87 Difference]: Start difference. First operand 925 states and 1381 transitions. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:15,911 INFO L93 Difference]: Finished difference Result 1698 states and 2535 transitions. [2024-11-28 03:33:15,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:15,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 471 [2024-11-28 03:33:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:15,918 INFO L225 Difference]: With dead ends: 1698 [2024-11-28 03:33:15,919 INFO L226 Difference]: Without dead ends: 929 [2024-11-28 03:33:15,920 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 03:33:15,923 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:15,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:15,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-28 03:33:15,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 927. [2024-11-28 03:33:15,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 926 states have (on average 1.4935205183585314) internal successors, (1383), 926 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1383 transitions. [2024-11-28 03:33:15,963 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1383 transitions. Word has length 471 [2024-11-28 03:33:15,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:15,968 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1383 transitions. [2024-11-28 03:33:15,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1383 transitions. [2024-11-28 03:33:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-28 03:33:15,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:15,983 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:15,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:33:15,984 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:15,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash -942529395, now seen corresponding path program 1 times [2024-11-28 03:33:15,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:15,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967708147] [2024-11-28 03:33:15,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:15,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:33:18,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:18,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967708147] [2024-11-28 03:33:18,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967708147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:18,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:18,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:18,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358261936] [2024-11-28 03:33:18,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:18,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:18,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:18,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:18,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:18,420 INFO L87 Difference]: Start difference. First operand 927 states and 1383 transitions. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:18,537 INFO L93 Difference]: Finished difference Result 1706 states and 2545 transitions. [2024-11-28 03:33:18,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:18,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 472 [2024-11-28 03:33:18,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:18,545 INFO L225 Difference]: With dead ends: 1706 [2024-11-28 03:33:18,545 INFO L226 Difference]: Without dead ends: 931 [2024-11-28 03:33:18,546 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 03:33:18,548 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:18,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:18,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-28 03:33:18,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 929. [2024-11-28 03:33:18,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.4924568965517242) internal successors, (1385), 928 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:18,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1385 transitions. [2024-11-28 03:33:18,585 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1385 transitions. Word has length 472 [2024-11-28 03:33:18,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:18,586 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1385 transitions. [2024-11-28 03:33:18,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:18,586 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1385 transitions. [2024-11-28 03:33:18,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:33:18,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:18,599 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:18,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:33:18,599 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:18,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:18,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2085089383, now seen corresponding path program 1 times [2024-11-28 03:33:18,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:18,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795055021] [2024-11-28 03:33:18,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:18,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 03:33:20,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:20,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795055021] [2024-11-28 03:33:20,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795055021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:20,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:20,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:20,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070140840] [2024-11-28 03:33:20,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:20,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:20,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:20,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:20,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:20,725 INFO L87 Difference]: Start difference. First operand 929 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:20,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:20,801 INFO L93 Difference]: Finished difference Result 1714 states and 2555 transitions. [2024-11-28 03:33:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 473 [2024-11-28 03:33:20,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:20,807 INFO L225 Difference]: With dead ends: 1714 [2024-11-28 03:33:20,807 INFO L226 Difference]: Without dead ends: 933 [2024-11-28 03:33:20,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:20,810 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:20,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:20,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-28 03:33:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 931. [2024-11-28 03:33:20,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 930 states have (on average 1.4913978494623656) internal successors, (1387), 930 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1387 transitions. [2024-11-28 03:33:20,841 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1387 transitions. Word has length 473 [2024-11-28 03:33:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:20,843 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1387 transitions. [2024-11-28 03:33:20,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1387 transitions. [2024-11-28 03:33:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-28 03:33:20,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:20,855 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:20,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:33:20,855 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:20,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1521186458, now seen corresponding path program 1 times [2024-11-28 03:33:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:20,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508877634] [2024-11-28 03:33:20,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:20,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 03:33:23,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:23,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508877634] [2024-11-28 03:33:23,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508877634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:23,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:23,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:23,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722395655] [2024-11-28 03:33:23,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:23,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:23,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:23,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:23,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:23,272 INFO L87 Difference]: Start difference. First operand 931 states and 1387 transitions. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:23,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:23,375 INFO L93 Difference]: Finished difference Result 1722 states and 2565 transitions. [2024-11-28 03:33:23,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:23,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 474 [2024-11-28 03:33:23,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:23,383 INFO L225 Difference]: With dead ends: 1722 [2024-11-28 03:33:23,383 INFO L226 Difference]: Without dead ends: 935 [2024-11-28 03:33:23,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:23,385 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:23,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4852 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-28 03:33:23,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2024-11-28 03:33:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 932 states have (on average 1.490343347639485) internal successors, (1389), 932 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:23,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1389 transitions. [2024-11-28 03:33:23,414 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1389 transitions. Word has length 474 [2024-11-28 03:33:23,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:23,416 INFO L471 AbstractCegarLoop]: Abstraction has 933 states and 1389 transitions. [2024-11-28 03:33:23,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1389 transitions. [2024-11-28 03:33:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-28 03:33:23,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:23,428 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:23,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:33:23,428 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:23,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash -437789888, now seen corresponding path program 1 times [2024-11-28 03:33:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538429731] [2024-11-28 03:33:23,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:23,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:27,008 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:27,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:27,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538429731] [2024-11-28 03:33:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538429731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:27,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:27,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:27,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111123929] [2024-11-28 03:33:27,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:27,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:27,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:27,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:27,018 INFO L87 Difference]: Start difference. First operand 933 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:27,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:27,481 INFO L93 Difference]: Finished difference Result 1711 states and 2547 transitions. [2024-11-28 03:33:27,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:27,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 475 [2024-11-28 03:33:27,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:27,487 INFO L225 Difference]: With dead ends: 1711 [2024-11-28 03:33:27,487 INFO L226 Difference]: Without dead ends: 936 [2024-11-28 03:33:27,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:27,491 INFO L435 NwaCegarLoop]: 1148 mSDtfsCounter, 1043 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:27,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 3440 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:33:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2024-11-28 03:33:27,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 936. [2024-11-28 03:33:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 935 states have (on average 1.4887700534759358) internal successors, (1392), 935 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1392 transitions. [2024-11-28 03:33:27,550 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1392 transitions. Word has length 475 [2024-11-28 03:33:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:27,551 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1392 transitions. [2024-11-28 03:33:27,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1392 transitions. [2024-11-28 03:33:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-28 03:33:27,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:27,563 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:27,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:33:27,563 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:27,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:27,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2025557637, now seen corresponding path program 1 times [2024-11-28 03:33:27,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:27,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109214638] [2024-11-28 03:33:27,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:27,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:29,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:29,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109214638] [2024-11-28 03:33:29,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109214638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:29,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:29,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:29,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890144106] [2024-11-28 03:33:29,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:29,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:29,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:29,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:29,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:29,884 INFO L87 Difference]: Start difference. First operand 936 states and 1392 transitions. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:30,265 INFO L93 Difference]: Finished difference Result 1734 states and 2577 transitions. [2024-11-28 03:33:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:30,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 476 [2024-11-28 03:33:30,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:30,270 INFO L225 Difference]: With dead ends: 1734 [2024-11-28 03:33:30,271 INFO L226 Difference]: Without dead ends: 940 [2024-11-28 03:33:30,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:30,274 INFO L435 NwaCegarLoop]: 1202 mSDtfsCounter, 1092 mSDsluCounter, 3541 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 4743 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:30,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 4743 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:33:30,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-28 03:33:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 938. [2024-11-28 03:33:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 937 states have (on average 1.487726787620064) internal successors, (1394), 937 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1394 transitions. [2024-11-28 03:33:30,305 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1394 transitions. Word has length 476 [2024-11-28 03:33:30,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:30,306 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1394 transitions. [2024-11-28 03:33:30,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1394 transitions. [2024-11-28 03:33:30,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-28 03:33:30,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:30,317 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:30,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:33:30,317 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:30,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1586976388, now seen corresponding path program 1 times [2024-11-28 03:33:30,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:30,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335611090] [2024-11-28 03:33:30,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:30,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-28 03:33:32,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:32,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335611090] [2024-11-28 03:33:32,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335611090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:32,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:32,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:32,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978459130] [2024-11-28 03:33:32,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:32,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:32,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:32,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:32,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:32,403 INFO L87 Difference]: Start difference. First operand 938 states and 1394 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:32,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:32,515 INFO L93 Difference]: Finished difference Result 1740 states and 2585 transitions. [2024-11-28 03:33:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:32,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 477 [2024-11-28 03:33:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:32,522 INFO L225 Difference]: With dead ends: 1740 [2024-11-28 03:33:32,523 INFO L226 Difference]: Without dead ends: 942 [2024-11-28 03:33:32,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:32,525 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:32,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4852 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:32,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-28 03:33:32,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 940. [2024-11-28 03:33:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 939 states have (on average 1.4866879659211927) internal successors, (1396), 939 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1396 transitions. [2024-11-28 03:33:32,559 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1396 transitions. Word has length 477 [2024-11-28 03:33:32,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:32,561 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1396 transitions. [2024-11-28 03:33:32,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:32,562 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1396 transitions. [2024-11-28 03:33:32,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-28 03:33:32,576 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:32,577 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:32,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:33:32,577 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:32,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:32,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1690308219, now seen corresponding path program 1 times [2024-11-28 03:33:32,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:32,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574533804] [2024-11-28 03:33:32,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:32,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 03:33:34,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:34,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574533804] [2024-11-28 03:33:34,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574533804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:34,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:34,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:34,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812330144] [2024-11-28 03:33:34,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:34,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:34,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:34,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:34,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:34,247 INFO L87 Difference]: Start difference. First operand 940 states and 1396 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:34,331 INFO L93 Difference]: Finished difference Result 1748 states and 2595 transitions. [2024-11-28 03:33:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:34,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 478 [2024-11-28 03:33:34,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:34,337 INFO L225 Difference]: With dead ends: 1748 [2024-11-28 03:33:34,337 INFO L226 Difference]: Without dead ends: 944 [2024-11-28 03:33:34,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:34,339 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:34,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4852 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:34,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-28 03:33:34,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-28 03:33:34,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 941 states have (on average 1.485653560042508) internal successors, (1398), 941 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1398 transitions. [2024-11-28 03:33:34,367 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1398 transitions. Word has length 478 [2024-11-28 03:33:34,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:34,368 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1398 transitions. [2024-11-28 03:33:34,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:34,368 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1398 transitions. [2024-11-28 03:33:34,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-28 03:33:34,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:34,374 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:34,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:33:34,374 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:34,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:34,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1704655317, now seen corresponding path program 1 times [2024-11-28 03:33:34,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:34,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639004321] [2024-11-28 03:33:34,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:34,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 03:33:35,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:35,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639004321] [2024-11-28 03:33:35,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639004321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:35,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:35,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:35,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723935722] [2024-11-28 03:33:35,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:35,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:35,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:35,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:35,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:35,865 INFO L87 Difference]: Start difference. First operand 942 states and 1398 transitions. Second operand has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:35,928 INFO L93 Difference]: Finished difference Result 1756 states and 2605 transitions. [2024-11-28 03:33:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:35,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 479 [2024-11-28 03:33:35,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:35,935 INFO L225 Difference]: With dead ends: 1756 [2024-11-28 03:33:35,935 INFO L226 Difference]: Without dead ends: 946 [2024-11-28 03:33:35,936 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 03:33:35,937 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:35,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:35,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-28 03:33:35,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 944. [2024-11-28 03:33:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 943 states have (on average 1.4846235418875928) internal successors, (1400), 943 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1400 transitions. [2024-11-28 03:33:35,964 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1400 transitions. Word has length 479 [2024-11-28 03:33:35,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:35,965 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1400 transitions. [2024-11-28 03:33:35,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:35,966 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1400 transitions. [2024-11-28 03:33:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-28 03:33:35,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:35,971 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:35,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:33:35,971 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:35,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash -280704428, now seen corresponding path program 1 times [2024-11-28 03:33:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:35,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145923126] [2024-11-28 03:33:35,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:35,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:33:37,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:37,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145923126] [2024-11-28 03:33:37,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145923126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:37,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:37,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:37,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674190142] [2024-11-28 03:33:37,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:37,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:37,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:37,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:37,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:37,559 INFO L87 Difference]: Start difference. First operand 944 states and 1400 transitions. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:37,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:37,618 INFO L93 Difference]: Finished difference Result 1764 states and 2615 transitions. [2024-11-28 03:33:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2024-11-28 03:33:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:37,624 INFO L225 Difference]: With dead ends: 1764 [2024-11-28 03:33:37,624 INFO L226 Difference]: Without dead ends: 948 [2024-11-28 03:33:37,625 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 03:33:37,626 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:37,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-28 03:33:37,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 946. [2024-11-28 03:33:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 1.4835978835978836) internal successors, (1402), 945 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1402 transitions. [2024-11-28 03:33:37,652 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1402 transitions. Word has length 480 [2024-11-28 03:33:37,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:37,653 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1402 transitions. [2024-11-28 03:33:37,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:37,654 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1402 transitions. [2024-11-28 03:33:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-28 03:33:37,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:37,659 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:37,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:33:37,659 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:37,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1270330670, now seen corresponding path program 1 times [2024-11-28 03:33:37,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:37,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397776032] [2024-11-28 03:33:37,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:37,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 03:33:39,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:39,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397776032] [2024-11-28 03:33:39,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397776032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:39,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:39,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:39,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680496013] [2024-11-28 03:33:39,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:39,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:39,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:39,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:39,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:39,138 INFO L87 Difference]: Start difference. First operand 946 states and 1402 transitions. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:39,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:39,193 INFO L93 Difference]: Finished difference Result 1780 states and 2637 transitions. [2024-11-28 03:33:39,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:39,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 481 [2024-11-28 03:33:39,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:39,198 INFO L225 Difference]: With dead ends: 1780 [2024-11-28 03:33:39,199 INFO L226 Difference]: Without dead ends: 958 [2024-11-28 03:33:39,201 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 03:33:39,202 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 4 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:39,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-28 03:33:39,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 952. [2024-11-28 03:33:39,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 951 states have (on average 1.4826498422712935) internal successors, (1410), 951 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1410 transitions. [2024-11-28 03:33:39,228 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1410 transitions. Word has length 481 [2024-11-28 03:33:39,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:39,229 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1410 transitions. [2024-11-28 03:33:39,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1410 transitions. [2024-11-28 03:33:39,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-28 03:33:39,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:39,234 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:39,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:33:39,235 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:39,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:39,236 INFO L85 PathProgramCache]: Analyzing trace with hash 552465926, now seen corresponding path program 1 times [2024-11-28 03:33:39,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:39,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925013170] [2024-11-28 03:33:39,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:39,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 44 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:41,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:41,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925013170] [2024-11-28 03:33:41,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925013170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:41,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992166550] [2024-11-28 03:33:41,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:41,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:41,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:41,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:41,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:33:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:43,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 3067 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:33:43,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:45,542 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 03:33:45,542 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 03:33:47,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992166550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:47,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:47,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2024-11-28 03:33:47,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476052469] [2024-11-28 03:33:47,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:47,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:33:47,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:47,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:33:47,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:33:47,356 INFO L87 Difference]: Start difference. First operand 952 states and 1410 transitions. Second operand has 14 states, 14 states have (on average 72.07142857142857) internal successors, (1009), 14 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:49,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:49,770 INFO L93 Difference]: Finished difference Result 7796 states and 11522 transitions. [2024-11-28 03:33:49,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 03:33:49,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 72.07142857142857) internal successors, (1009), 14 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 482 [2024-11-28 03:33:49,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:49,788 INFO L225 Difference]: With dead ends: 7796 [2024-11-28 03:33:49,788 INFO L226 Difference]: Without dead ends: 4446 [2024-11-28 03:33:49,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 960 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 03:33:49,794 INFO L435 NwaCegarLoop]: 1212 mSDtfsCounter, 21059 mSDsluCounter, 12697 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21059 SdHoareTripleChecker+Valid, 13909 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:49,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21059 Valid, 13909 Invalid, 1244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [176 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:33:49,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2024-11-28 03:33:49,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 1784. [2024-11-28 03:33:49,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.4789680314077398) internal successors, (2637), 1783 states have internal predecessors, (2637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2637 transitions. [2024-11-28 03:33:49,881 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2637 transitions. Word has length 482 [2024-11-28 03:33:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:49,881 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2637 transitions. [2024-11-28 03:33:49,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 72.07142857142857) internal successors, (1009), 14 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2637 transitions. [2024-11-28 03:33:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-28 03:33:49,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:49,889 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:49,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:50,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:33:50,090 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:50,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:50,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1506034142, now seen corresponding path program 1 times [2024-11-28 03:33:50,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:50,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240868250] [2024-11-28 03:33:50,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:50,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 46 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:51,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:51,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240868250] [2024-11-28 03:33:51,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240868250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:51,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747251368] [2024-11-28 03:33:51,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:51,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:51,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:51,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:33:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:54,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 3073 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-28 03:33:54,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:56,056 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:56,056 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:56,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747251368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:56,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:56,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2024-11-28 03:33:56,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503695983] [2024-11-28 03:33:56,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:56,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:33:56,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:56,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:33:56,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:33:56,061 INFO L87 Difference]: Start difference. First operand 1784 states and 2637 transitions. Second operand has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:58,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:58,853 INFO L93 Difference]: Finished difference Result 5070 states and 7473 transitions. [2024-11-28 03:33:58,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:33:58,854 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 484 [2024-11-28 03:33:58,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:58,861 INFO L225 Difference]: With dead ends: 5070 [2024-11-28 03:33:58,861 INFO L226 Difference]: Without dead ends: 3432 [2024-11-28 03:33:58,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:33:58,864 INFO L435 NwaCegarLoop]: 1768 mSDtfsCounter, 3001 mSDsluCounter, 10121 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3001 SdHoareTripleChecker+Valid, 11889 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:58,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3001 Valid, 11889 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3655 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:33:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-28 03:33:58,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 2036. [2024-11-28 03:33:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2036 states, 2035 states have (on average 1.4742014742014742) internal successors, (3000), 2035 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:58,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 3000 transitions. [2024-11-28 03:33:58,928 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 3000 transitions. Word has length 484 [2024-11-28 03:33:58,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:58,928 INFO L471 AbstractCegarLoop]: Abstraction has 2036 states and 3000 transitions. [2024-11-28 03:33:58,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 37.23076923076923) internal successors, (484), 13 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:58,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 3000 transitions. [2024-11-28 03:33:58,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-11-28 03:33:58,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:58,935 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:58,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:59,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:33:59,136 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:59,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:59,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1557294378, now seen corresponding path program 1 times [2024-11-28 03:33:59,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:59,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427570186] [2024-11-28 03:33:59,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:59,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:00,832 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 46 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:00,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:00,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427570186] [2024-11-28 03:34:00,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427570186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:00,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581774331] [2024-11-28 03:34:00,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:00,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:00,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:00,837 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:00,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:34:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:03,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 3076 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:34:03,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:03,851 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:34:03,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581774331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:03,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:03,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-28 03:34:03,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603551447] [2024-11-28 03:34:03,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:03,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:34:03,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:03,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:34:03,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:34:03,854 INFO L87 Difference]: Start difference. First operand 2036 states and 3000 transitions. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:04,856 INFO L93 Difference]: Finished difference Result 5276 states and 7758 transitions. [2024-11-28 03:34:04,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:34:04,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 485 [2024-11-28 03:34:04,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:04,867 INFO L225 Difference]: With dead ends: 5276 [2024-11-28 03:34:04,867 INFO L226 Difference]: Without dead ends: 3441 [2024-11-28 03:34:04,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:34:04,870 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 2024 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 3787 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:04,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 3787 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:34:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2024-11-28 03:34:04,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 2455. [2024-11-28 03:34:04,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2454 states have (on average 1.458842705786471) internal successors, (3580), 2454 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:04,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3580 transitions. [2024-11-28 03:34:04,930 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3580 transitions. Word has length 485 [2024-11-28 03:34:04,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:04,931 INFO L471 AbstractCegarLoop]: Abstraction has 2455 states and 3580 transitions. [2024-11-28 03:34:04,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3580 transitions. [2024-11-28 03:34:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-28 03:34:04,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:04,938 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:04,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:05,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:34:05,139 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:34:05,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:05,140 INFO L85 PathProgramCache]: Analyzing trace with hash 486741665, now seen corresponding path program 1 times [2024-11-28 03:34:05,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:05,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730211011] [2024-11-28 03:34:05,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:05,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:06,839 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 46 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:06,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:06,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730211011] [2024-11-28 03:34:06,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730211011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:06,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490892769] [2024-11-28 03:34:06,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:06,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:06,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:06,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:06,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:34:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:09,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 3079 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:34:09,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:09,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:34:09,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490892769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:09,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:09,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-28 03:34:09,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084900569] [2024-11-28 03:34:09,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:09,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:34:09,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:09,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:34:09,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:34:09,860 INFO L87 Difference]: Start difference. First operand 2455 states and 3580 transitions. Second operand has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:11,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:11,083 INFO L93 Difference]: Finished difference Result 6413 states and 9324 transitions. [2024-11-28 03:34:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:34:11,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 486 [2024-11-28 03:34:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:11,095 INFO L225 Difference]: With dead ends: 6413 [2024-11-28 03:34:11,095 INFO L226 Difference]: Without dead ends: 4207 [2024-11-28 03:34:11,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:34:11,098 INFO L435 NwaCegarLoop]: 1489 mSDtfsCounter, 2110 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 5399 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:11,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 5399 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:34:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2024-11-28 03:34:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 3277. [2024-11-28 03:34:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3277 states, 3276 states have (on average 1.4395604395604396) internal successors, (4716), 3276 states have internal predecessors, (4716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:11,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3277 states to 3277 states and 4716 transitions. [2024-11-28 03:34:11,169 INFO L78 Accepts]: Start accepts. Automaton has 3277 states and 4716 transitions. Word has length 486 [2024-11-28 03:34:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:11,169 INFO L471 AbstractCegarLoop]: Abstraction has 3277 states and 4716 transitions. [2024-11-28 03:34:11,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3277 states and 4716 transitions. [2024-11-28 03:34:11,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-11-28 03:34:11,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:11,179 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:11,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:34:11,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:11,380 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:34:11,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:11,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2017461528, now seen corresponding path program 1 times [2024-11-28 03:34:11,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:11,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494375207] [2024-11-28 03:34:11,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:11,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 46 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:12,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:12,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494375207] [2024-11-28 03:34:12,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494375207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:12,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004634547] [2024-11-28 03:34:12,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:12,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:12,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:12,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:12,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:34:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:14,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 3082 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 03:34:14,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:16,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:34:16,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004634547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:16,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:16,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2024-11-28 03:34:16,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45554491] [2024-11-28 03:34:16,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:16,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:34:16,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:16,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:34:16,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:34:16,765 INFO L87 Difference]: Start difference. First operand 3277 states and 4716 transitions. Second operand has 13 states, 13 states have (on average 37.46153846153846) internal successors, (487), 13 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:21,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:21,618 INFO L93 Difference]: Finished difference Result 8588 states and 12370 transitions. [2024-11-28 03:34:21,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:34:21,619 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 37.46153846153846) internal successors, (487), 13 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 487 [2024-11-28 03:34:21,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:21,627 INFO L225 Difference]: With dead ends: 8588 [2024-11-28 03:34:21,628 INFO L226 Difference]: Without dead ends: 5632 [2024-11-28 03:34:21,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:34:21,631 INFO L435 NwaCegarLoop]: 2096 mSDtfsCounter, 5603 mSDsluCounter, 12787 mSDsCounter, 0 mSdLazyCounter, 6877 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5603 SdHoareTripleChecker+Valid, 14883 SdHoareTripleChecker+Invalid, 6878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:21,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5603 Valid, 14883 Invalid, 6878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6877 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:34:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2024-11-28 03:34:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 3935. [2024-11-28 03:34:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3935 states, 3934 states have (on average 1.4339095068632435) internal successors, (5641), 3934 states have internal predecessors, (5641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3935 states to 3935 states and 5641 transitions. [2024-11-28 03:34:21,701 INFO L78 Accepts]: Start accepts. Automaton has 3935 states and 5641 transitions. Word has length 487 [2024-11-28 03:34:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:21,701 INFO L471 AbstractCegarLoop]: Abstraction has 3935 states and 5641 transitions. [2024-11-28 03:34:21,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 37.46153846153846) internal successors, (487), 13 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:21,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3935 states and 5641 transitions. [2024-11-28 03:34:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-11-28 03:34:21,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:21,712 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:21,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:21,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:21,913 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:34:21,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash 313603931, now seen corresponding path program 1 times [2024-11-28 03:34:21,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:21,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260899556] [2024-11-28 03:34:21,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:21,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 46 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:23,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:23,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260899556] [2024-11-28 03:34:23,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260899556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:23,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391155398] [2024-11-28 03:34:23,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:23,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:23,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:23,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:23,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:34:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:25,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 3082 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 03:34:25,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 44 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:27,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:29,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391155398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:29,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:29,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 17, 18] total 39 [2024-11-28 03:34:29,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111631051] [2024-11-28 03:34:29,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:29,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-28 03:34:29,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:29,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-28 03:34:29,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:34:29,540 INFO L87 Difference]: Start difference. First operand 3935 states and 5641 transitions. Second operand has 39 states, 39 states have (on average 33.205128205128204) internal successors, (1295), 39 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:15,185 INFO L93 Difference]: Finished difference Result 73531 states and 106043 transitions. [2024-11-28 03:36:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 617 states. [2024-11-28 03:36:15,186 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 33.205128205128204) internal successors, (1295), 39 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 487 [2024-11-28 03:36:15,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:15,301 INFO L225 Difference]: With dead ends: 73531 [2024-11-28 03:36:15,301 INFO L226 Difference]: Without dead ends: 69983 [2024-11-28 03:36:15,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1605 GetRequests, 955 SyntacticMatches, 0 SemanticMatches, 650 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179849 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=30323, Invalid=394129, Unknown=0, NotChecked=0, Total=424452 [2024-11-28 03:36:15,355 INFO L435 NwaCegarLoop]: 9859 mSDtfsCounter, 25312 mSDsluCounter, 238952 mSDsCounter, 0 mSdLazyCounter, 77147 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25312 SdHoareTripleChecker+Valid, 248811 SdHoareTripleChecker+Invalid, 77304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 77147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:15,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25312 Valid, 248811 Invalid, 77304 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [157 Valid, 77147 Invalid, 0 Unknown, 0 Unchecked, 51.0s Time] [2024-11-28 03:36:15,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69983 states. [2024-11-28 03:36:15,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69983 to 7101. [2024-11-28 03:36:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7101 states, 7100 states have (on average 1.4222535211267606) internal successors, (10098), 7100 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7101 states to 7101 states and 10098 transitions. [2024-11-28 03:36:15,883 INFO L78 Accepts]: Start accepts. Automaton has 7101 states and 10098 transitions. Word has length 487 [2024-11-28 03:36:15,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:15,884 INFO L471 AbstractCegarLoop]: Abstraction has 7101 states and 10098 transitions. [2024-11-28 03:36:15,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 33.205128205128204) internal successors, (1295), 39 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7101 states and 10098 transitions. [2024-11-28 03:36:15,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-28 03:36:15,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:15,903 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:15,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:36:16,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 03:36:16,104 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:16,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:16,105 INFO L85 PathProgramCache]: Analyzing trace with hash 210851264, now seen corresponding path program 1 times [2024-11-28 03:36:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:16,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081141398] [2024-11-28 03:36:16,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:16,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-28 03:36:17,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:17,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081141398] [2024-11-28 03:36:17,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081141398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:17,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:17,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:36:17,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506608872] [2024-11-28 03:36:17,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:17,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:36:17,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:17,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:36:17,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:17,208 INFO L87 Difference]: Start difference. First operand 7101 states and 10098 transitions. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:17,267 INFO L93 Difference]: Finished difference Result 13717 states and 19501 transitions. [2024-11-28 03:36:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:17,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 488 [2024-11-28 03:36:17,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:17,282 INFO L225 Difference]: With dead ends: 13717 [2024-11-28 03:36:17,282 INFO L226 Difference]: Without dead ends: 7229 [2024-11-28 03:36:17,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:17,289 INFO L435 NwaCegarLoop]: 1219 mSDtfsCounter, 0 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:17,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3638 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:36:17,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2024-11-28 03:36:17,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 7101. [2024-11-28 03:36:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7101 states, 7100 states have (on average 1.4222535211267606) internal successors, (10098), 7100 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:17,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7101 states to 7101 states and 10098 transitions. [2024-11-28 03:36:17,373 INFO L78 Accepts]: Start accepts. Automaton has 7101 states and 10098 transitions. Word has length 488 [2024-11-28 03:36:17,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:17,373 INFO L471 AbstractCegarLoop]: Abstraction has 7101 states and 10098 transitions. [2024-11-28 03:36:17,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:17,374 INFO L276 IsEmpty]: Start isEmpty. Operand 7101 states and 10098 transitions. [2024-11-28 03:36:17,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-11-28 03:36:17,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:17,383 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:17,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:36:17,384 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:17,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:17,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1500736511, now seen corresponding path program 1 times [2024-11-28 03:36:17,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:17,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128328679] [2024-11-28 03:36:17,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:17,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:20,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:20,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128328679] [2024-11-28 03:36:20,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128328679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:20,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:20,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:36:20,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704035135] [2024-11-28 03:36:20,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:20,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:36:20,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:20,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:36:20,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:20,089 INFO L87 Difference]: Start difference. First operand 7101 states and 10098 transitions. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:20,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:20,437 INFO L93 Difference]: Finished difference Result 13595 states and 19350 transitions. [2024-11-28 03:36:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:36:20,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2024-11-28 03:36:20,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:20,448 INFO L225 Difference]: With dead ends: 13595 [2024-11-28 03:36:20,448 INFO L226 Difference]: Without dead ends: 7107 [2024-11-28 03:36:20,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:36:20,454 INFO L435 NwaCegarLoop]: 1148 mSDtfsCounter, 1048 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:20,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 3432 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:36:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2024-11-28 03:36:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 7104. [2024-11-28 03:36:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7104 states, 7103 states have (on average 1.422075179501619) internal successors, (10101), 7103 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:20,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7104 states to 7104 states and 10101 transitions. [2024-11-28 03:36:20,543 INFO L78 Accepts]: Start accepts. Automaton has 7104 states and 10101 transitions. Word has length 489 [2024-11-28 03:36:20,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:20,543 INFO L471 AbstractCegarLoop]: Abstraction has 7104 states and 10101 transitions. [2024-11-28 03:36:20,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:20,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7104 states and 10101 transitions. [2024-11-28 03:36:20,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-11-28 03:36:20,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:20,555 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:20,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:36:20,555 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:20,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:20,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1324287128, now seen corresponding path program 1 times [2024-11-28 03:36:20,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:20,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248968120] [2024-11-28 03:36:20,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:20,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:23,096 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:23,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:23,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248968120] [2024-11-28 03:36:23,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248968120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:23,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:23,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:23,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589035263] [2024-11-28 03:36:23,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:23,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:23,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:23,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:23,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:23,099 INFO L87 Difference]: Start difference. First operand 7104 states and 10101 transitions. Second operand has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:23,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:23,540 INFO L93 Difference]: Finished difference Result 13103 states and 18649 transitions. [2024-11-28 03:36:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:23,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2024-11-28 03:36:23,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:23,547 INFO L225 Difference]: With dead ends: 13103 [2024-11-28 03:36:23,547 INFO L226 Difference]: Without dead ends: 6590 [2024-11-28 03:36:23,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:23,553 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 1137 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:23,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1910 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:36:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2024-11-28 03:36:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6590. [2024-11-28 03:36:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.4200940962209743) internal successors, (9357), 6589 states have internal predecessors, (9357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 9357 transitions. [2024-11-28 03:36:23,631 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 9357 transitions. Word has length 489 [2024-11-28 03:36:23,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:23,631 INFO L471 AbstractCegarLoop]: Abstraction has 6590 states and 9357 transitions. [2024-11-28 03:36:23,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 9357 transitions. [2024-11-28 03:36:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2024-11-28 03:36:23,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:23,641 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:23,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:36:23,641 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:23,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:23,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1929050649, now seen corresponding path program 1 times [2024-11-28 03:36:23,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:23,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076433720] [2024-11-28 03:36:23,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:25,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:25,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076433720] [2024-11-28 03:36:25,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076433720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:25,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:25,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:36:25,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789302599] [2024-11-28 03:36:25,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:25,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:36:25,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:25,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:36:25,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:36:25,959 INFO L87 Difference]: Start difference. First operand 6590 states and 9357 transitions. Second operand has 8 states, 8 states have (on average 61.25) internal successors, (490), 8 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:28,068 INFO L93 Difference]: Finished difference Result 13855 states and 19776 transitions. [2024-11-28 03:36:28,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:36:28,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 61.25) internal successors, (490), 8 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 490 [2024-11-28 03:36:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:28,073 INFO L225 Difference]: With dead ends: 13855 [2024-11-28 03:36:28,073 INFO L226 Difference]: Without dead ends: 7878 [2024-11-28 03:36:28,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:36:28,078 INFO L435 NwaCegarLoop]: 1775 mSDtfsCounter, 2209 mSDsluCounter, 8016 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 9791 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:28,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 9791 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:36:28,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7878 states. [2024-11-28 03:36:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7878 to 6732. [2024-11-28 03:36:28,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6732 states, 6731 states have (on average 1.4204427276779081) internal successors, (9561), 6731 states have internal predecessors, (9561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6732 states to 6732 states and 9561 transitions. [2024-11-28 03:36:28,209 INFO L78 Accepts]: Start accepts. Automaton has 6732 states and 9561 transitions. Word has length 490 [2024-11-28 03:36:28,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:28,210 INFO L471 AbstractCegarLoop]: Abstraction has 6732 states and 9561 transitions. [2024-11-28 03:36:28,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 61.25) internal successors, (490), 8 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 6732 states and 9561 transitions. [2024-11-28 03:36:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2024-11-28 03:36:28,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:28,224 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:28,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:36:28,225 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:28,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:28,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1191597441, now seen corresponding path program 1 times [2024-11-28 03:36:28,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:28,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104486861] [2024-11-28 03:36:28,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:28,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:30,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104486861] [2024-11-28 03:36:30,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104486861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:30,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:30,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:36:30,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172283225] [2024-11-28 03:36:30,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:30,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:36:30,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:30,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:36:30,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:36:30,565 INFO L87 Difference]: Start difference. First operand 6732 states and 9561 transitions. Second operand has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:31,381 INFO L93 Difference]: Finished difference Result 18348 states and 25975 transitions. [2024-11-28 03:36:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:36:31,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 490 [2024-11-28 03:36:31,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:31,390 INFO L225 Difference]: With dead ends: 18348 [2024-11-28 03:36:31,390 INFO L226 Difference]: Without dead ends: 12229 [2024-11-28 03:36:31,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:36:31,395 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 1980 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:31,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 3786 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:36:31,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12229 states. [2024-11-28 03:36:31,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12229 to 11257. [2024-11-28 03:36:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11257 states, 11256 states have (on average 1.4052949538024164) internal successors, (15818), 11256 states have internal predecessors, (15818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:31,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11257 states to 11257 states and 15818 transitions. [2024-11-28 03:36:31,480 INFO L78 Accepts]: Start accepts. Automaton has 11257 states and 15818 transitions. Word has length 490 [2024-11-28 03:36:31,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:31,480 INFO L471 AbstractCegarLoop]: Abstraction has 11257 states and 15818 transitions. [2024-11-28 03:36:31,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:31,481 INFO L276 IsEmpty]: Start isEmpty. Operand 11257 states and 15818 transitions. [2024-11-28 03:36:31,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-28 03:36:31,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:31,490 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:31,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:36:31,490 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:31,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:31,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1071617278, now seen corresponding path program 1 times [2024-11-28 03:36:31,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:31,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260703114] [2024-11-28 03:36:31,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:31,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:33,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:33,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260703114] [2024-11-28 03:36:33,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260703114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:33,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:33,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:33,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510863535] [2024-11-28 03:36:33,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:33,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:33,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:33,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:33,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:33,404 INFO L87 Difference]: Start difference. First operand 11257 states and 15818 transitions. Second operand has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:33,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:33,841 INFO L93 Difference]: Finished difference Result 21645 states and 30461 transitions. [2024-11-28 03:36:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:33,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 491 [2024-11-28 03:36:33,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:33,848 INFO L225 Difference]: With dead ends: 21645 [2024-11-28 03:36:33,848 INFO L226 Difference]: Without dead ends: 11257 [2024-11-28 03:36:33,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:33,854 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 1149 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:33,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1910 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:36:33,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11257 states. [2024-11-28 03:36:33,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11257 to 11257. [2024-11-28 03:36:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11257 states, 11256 states have (on average 1.4010305614783227) internal successors, (15770), 11256 states have internal predecessors, (15770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11257 states to 11257 states and 15770 transitions. [2024-11-28 03:36:33,931 INFO L78 Accepts]: Start accepts. Automaton has 11257 states and 15770 transitions. Word has length 491 [2024-11-28 03:36:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:33,932 INFO L471 AbstractCegarLoop]: Abstraction has 11257 states and 15770 transitions. [2024-11-28 03:36:33,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 11257 states and 15770 transitions. [2024-11-28 03:36:33,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-28 03:36:33,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:33,940 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:33,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:36:33,940 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:33,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:33,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1960183364, now seen corresponding path program 1 times [2024-11-28 03:36:33,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:33,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929048114] [2024-11-28 03:36:33,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:33,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:36,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:36,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929048114] [2024-11-28 03:36:36,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929048114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:36,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:36,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:36:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929499341] [2024-11-28 03:36:36,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:36,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:36:36,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:36,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:36:36,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:36:36,214 INFO L87 Difference]: Start difference. First operand 11257 states and 15770 transitions. Second operand has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:36,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:36,797 INFO L93 Difference]: Finished difference Result 21709 states and 30429 transitions. [2024-11-28 03:36:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:36:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 492 [2024-11-28 03:36:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:36,803 INFO L225 Difference]: With dead ends: 21709 [2024-11-28 03:36:36,804 INFO L226 Difference]: Without dead ends: 11321 [2024-11-28 03:36:36,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:36:36,809 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 2289 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2289 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:36,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2289 Valid, 2841 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:36:36,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11321 states. [2024-11-28 03:36:36,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11321 to 11257. [2024-11-28 03:36:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11257 states, 11256 states have (on average 1.3974769012082444) internal successors, (15730), 11256 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11257 states to 11257 states and 15730 transitions. [2024-11-28 03:36:36,889 INFO L78 Accepts]: Start accepts. Automaton has 11257 states and 15730 transitions. Word has length 492 [2024-11-28 03:36:36,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:36,889 INFO L471 AbstractCegarLoop]: Abstraction has 11257 states and 15730 transitions. [2024-11-28 03:36:36,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand 11257 states and 15730 transitions. [2024-11-28 03:36:36,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2024-11-28 03:36:36,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:36,896 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:36,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:36:36,897 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:36,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:36,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2041577139, now seen corresponding path program 1 times [2024-11-28 03:36:36,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:36,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606838528] [2024-11-28 03:36:36,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:36,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:38,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:38,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606838528] [2024-11-28 03:36:38,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606838528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:38,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:38,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:36:38,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270345670] [2024-11-28 03:36:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:38,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:36:38,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:38,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:36:38,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:36:38,573 INFO L87 Difference]: Start difference. First operand 11257 states and 15730 transitions. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:39,363 INFO L93 Difference]: Finished difference Result 31123 states and 43346 transitions. [2024-11-28 03:36:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:36:39,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 493 [2024-11-28 03:36:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:39,375 INFO L225 Difference]: With dead ends: 31123 [2024-11-28 03:36:39,375 INFO L226 Difference]: Without dead ends: 20735 [2024-11-28 03:36:39,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:36:39,383 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 3042 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:39,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3042 Valid, 3641 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:36:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20735 states. [2024-11-28 03:36:39,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20735 to 19667. [2024-11-28 03:36:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19667 states, 19666 states have (on average 1.3828943354012) internal successors, (27196), 19666 states have internal predecessors, (27196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:39,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19667 states to 19667 states and 27196 transitions. [2024-11-28 03:36:39,537 INFO L78 Accepts]: Start accepts. Automaton has 19667 states and 27196 transitions. Word has length 493 [2024-11-28 03:36:39,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:39,537 INFO L471 AbstractCegarLoop]: Abstraction has 19667 states and 27196 transitions. [2024-11-28 03:36:39,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:39,537 INFO L276 IsEmpty]: Start isEmpty. Operand 19667 states and 27196 transitions. [2024-11-28 03:36:39,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-28 03:36:39,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:39,556 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:39,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:36:39,557 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:39,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1195992446, now seen corresponding path program 1 times [2024-11-28 03:36:39,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:39,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923939602] [2024-11-28 03:36:39,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:39,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:41,029 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:41,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:41,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923939602] [2024-11-28 03:36:41,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923939602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:41,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:41,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:41,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221326418] [2024-11-28 03:36:41,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:41,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:41,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:41,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:41,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:41,032 INFO L87 Difference]: Start difference. First operand 19667 states and 27196 transitions. Second operand has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:41,537 INFO L93 Difference]: Finished difference Result 38209 states and 52961 transitions. [2024-11-28 03:36:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:41,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 494 [2024-11-28 03:36:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:41,551 INFO L225 Difference]: With dead ends: 38209 [2024-11-28 03:36:41,552 INFO L226 Difference]: Without dead ends: 19667 [2024-11-28 03:36:41,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:41,563 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 1113 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:41,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1910 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:36:41,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19667 states. [2024-11-28 03:36:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19667 to 19667. [2024-11-28 03:36:41,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19667 states, 19666 states have (on average 1.3824875419505747) internal successors, (27188), 19666 states have internal predecessors, (27188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:41,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19667 states to 19667 states and 27188 transitions. [2024-11-28 03:36:41,785 INFO L78 Accepts]: Start accepts. Automaton has 19667 states and 27188 transitions. Word has length 494 [2024-11-28 03:36:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:41,785 INFO L471 AbstractCegarLoop]: Abstraction has 19667 states and 27188 transitions. [2024-11-28 03:36:41,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 19667 states and 27188 transitions. [2024-11-28 03:36:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-11-28 03:36:41,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:41,812 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:41,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:36:41,812 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:41,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:41,813 INFO L85 PathProgramCache]: Analyzing trace with hash 511293919, now seen corresponding path program 1 times [2024-11-28 03:36:41,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:41,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250385402] [2024-11-28 03:36:41,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:41,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:44,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:44,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250385402] [2024-11-28 03:36:44,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250385402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:44,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:44,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:36:44,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568985008] [2024-11-28 03:36:44,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:44,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:36:44,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:44,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:36:44,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:44,427 INFO L87 Difference]: Start difference. First operand 19667 states and 27188 transitions. Second operand has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:44,983 INFO L93 Difference]: Finished difference Result 38217 states and 52957 transitions. [2024-11-28 03:36:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:36:44,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2024-11-28 03:36:44,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:44,995 INFO L225 Difference]: With dead ends: 38217 [2024-11-28 03:36:44,996 INFO L226 Difference]: Without dead ends: 19675 [2024-11-28 03:36:45,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:45,006 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 900 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:45,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 2861 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:36:45,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19675 states. [2024-11-28 03:36:45,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19675 to 19671. [2024-11-28 03:36:45,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19671 states, 19670 states have (on average 1.382409761057448) internal successors, (27192), 19670 states have internal predecessors, (27192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:45,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19671 states to 19671 states and 27192 transitions. [2024-11-28 03:36:45,144 INFO L78 Accepts]: Start accepts. Automaton has 19671 states and 27192 transitions. Word has length 495 [2024-11-28 03:36:45,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:45,144 INFO L471 AbstractCegarLoop]: Abstraction has 19671 states and 27192 transitions. [2024-11-28 03:36:45,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 19671 states and 27192 transitions. [2024-11-28 03:36:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-11-28 03:36:45,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:45,156 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:45,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:36:45,157 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:45,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:45,157 INFO L85 PathProgramCache]: Analyzing trace with hash -476434701, now seen corresponding path program 1 times [2024-11-28 03:36:45,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:45,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290921359] [2024-11-28 03:36:45,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:45,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:46,101 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:46,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:46,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290921359] [2024-11-28 03:36:46,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290921359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:46,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:46,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:36:46,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380567829] [2024-11-28 03:36:46,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:46,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:36:46,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:46,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:36:46,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:36:46,103 INFO L87 Difference]: Start difference. First operand 19671 states and 27192 transitions. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:46,240 INFO L93 Difference]: Finished difference Result 57517 states and 79588 transitions. [2024-11-28 03:36:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:36:46,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 496 [2024-11-28 03:36:46,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:46,263 INFO L225 Difference]: With dead ends: 57517 [2024-11-28 03:36:46,263 INFO L226 Difference]: Without dead ends: 38971 [2024-11-28 03:36:46,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:36:46,275 INFO L435 NwaCegarLoop]: 1208 mSDtfsCounter, 754 mSDsluCounter, 4812 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 6020 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:46,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 6020 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:36:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38971 states. [2024-11-28 03:36:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38971 to 38735. [2024-11-28 03:36:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38735 states, 38734 states have (on average 1.3805958589353022) internal successors, (53476), 38734 states have internal predecessors, (53476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38735 states to 38735 states and 53476 transitions. [2024-11-28 03:36:46,571 INFO L78 Accepts]: Start accepts. Automaton has 38735 states and 53476 transitions. Word has length 496 [2024-11-28 03:36:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:46,571 INFO L471 AbstractCegarLoop]: Abstraction has 38735 states and 53476 transitions. [2024-11-28 03:36:46,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 38735 states and 53476 transitions. [2024-11-28 03:36:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-11-28 03:36:46,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:46,596 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:46,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:36:46,596 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:46,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:46,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1939617492, now seen corresponding path program 1 times [2024-11-28 03:36:46,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:46,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285054517] [2024-11-28 03:36:46,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:46,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:49,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:49,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285054517] [2024-11-28 03:36:49,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285054517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:49,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:49,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:36:49,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810737794] [2024-11-28 03:36:49,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:49,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:36:49,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:49,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:36:49,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:49,176 INFO L87 Difference]: Start difference. First operand 38735 states and 53476 transitions. Second operand has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:49,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:49,826 INFO L93 Difference]: Finished difference Result 75381 states and 104331 transitions. [2024-11-28 03:36:49,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:36:49,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 496 [2024-11-28 03:36:49,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:49,864 INFO L225 Difference]: With dead ends: 75381 [2024-11-28 03:36:49,864 INFO L226 Difference]: Without dead ends: 38739 [2024-11-28 03:36:49,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 03:36:49,884 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 853 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:49,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 2863 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:36:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38739 states. [2024-11-28 03:36:50,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38739 to 38737. [2024-11-28 03:36:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38737 states, 38736 states have (on average 1.3805762081784387) internal successors, (53478), 38736 states have internal predecessors, (53478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38737 states to 38737 states and 53478 transitions. [2024-11-28 03:36:50,222 INFO L78 Accepts]: Start accepts. Automaton has 38737 states and 53478 transitions. Word has length 496 [2024-11-28 03:36:50,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:50,223 INFO L471 AbstractCegarLoop]: Abstraction has 38737 states and 53478 transitions. [2024-11-28 03:36:50,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 38737 states and 53478 transitions. [2024-11-28 03:36:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-11-28 03:36:50,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:50,252 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:50,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:36:50,252 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:50,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:50,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1743203364, now seen corresponding path program 1 times [2024-11-28 03:36:50,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:50,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034360504] [2024-11-28 03:36:50,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:50,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:54,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:54,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034360504] [2024-11-28 03:36:54,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034360504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:54,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:54,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:36:54,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795881679] [2024-11-28 03:36:54,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:54,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:36:54,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:54,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:36:54,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:36:54,017 INFO L87 Difference]: Start difference. First operand 38737 states and 53478 transitions. Second operand has 15 states, 15 states have (on average 33.13333333333333) internal successors, (497), 15 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:54,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:54,734 INFO L93 Difference]: Finished difference Result 78637 states and 108925 transitions. [2024-11-28 03:36:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:36:54,734 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 33.13333333333333) internal successors, (497), 15 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 497 [2024-11-28 03:36:54,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:54,760 INFO L225 Difference]: With dead ends: 78637 [2024-11-28 03:36:54,760 INFO L226 Difference]: Without dead ends: 41993 [2024-11-28 03:36:54,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:36:54,778 INFO L435 NwaCegarLoop]: 1187 mSDtfsCounter, 1314 mSDsluCounter, 10898 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 12085 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:54,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 12085 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:36:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41993 states. [2024-11-28 03:36:54,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41993 to 41797. [2024-11-28 03:36:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41797 states, 41796 states have (on average 1.382285386161355) internal successors, (57774), 41796 states have internal predecessors, (57774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41797 states to 41797 states and 57774 transitions. [2024-11-28 03:36:55,058 INFO L78 Accepts]: Start accepts. Automaton has 41797 states and 57774 transitions. Word has length 497 [2024-11-28 03:36:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:55,058 INFO L471 AbstractCegarLoop]: Abstraction has 41797 states and 57774 transitions. [2024-11-28 03:36:55,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 33.13333333333333) internal successors, (497), 15 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:55,058 INFO L276 IsEmpty]: Start isEmpty. Operand 41797 states and 57774 transitions. [2024-11-28 03:36:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-28 03:36:55,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:55,084 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:55,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:36:55,085 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:55,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:55,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1373782707, now seen corresponding path program 1 times [2024-11-28 03:36:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:55,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639860841] [2024-11-28 03:36:55,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:55,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:56,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:56,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639860841] [2024-11-28 03:36:56,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639860841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:56,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:56,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:56,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722093847] [2024-11-28 03:36:56,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:56,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:56,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:56,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:56,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:56,056 INFO L87 Difference]: Start difference. First operand 41797 states and 57774 transitions. Second operand has 4 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:56,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:56,204 INFO L93 Difference]: Finished difference Result 81489 states and 112905 transitions. [2024-11-28 03:36:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:56,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 498 [2024-11-28 03:36:56,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:56,231 INFO L225 Difference]: With dead ends: 81489 [2024-11-28 03:36:56,231 INFO L226 Difference]: Without dead ends: 41785 [2024-11-28 03:36:56,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 03:36:56,251 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 1053 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:56,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 2409 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:36:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41785 states. [2024-11-28 03:36:56,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41785 to 41785. [2024-11-28 03:36:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41785 states, 41784 states have (on average 1.382107983917289) internal successors, (57750), 41784 states have internal predecessors, (57750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41785 states to 41785 states and 57750 transitions. [2024-11-28 03:36:56,818 INFO L78 Accepts]: Start accepts. Automaton has 41785 states and 57750 transitions. Word has length 498 [2024-11-28 03:36:56,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:56,819 INFO L471 AbstractCegarLoop]: Abstraction has 41785 states and 57750 transitions. [2024-11-28 03:36:56,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:56,819 INFO L276 IsEmpty]: Start isEmpty. Operand 41785 states and 57750 transitions. [2024-11-28 03:36:56,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-28 03:36:56,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:56,844 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:56,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:36:56,844 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:56,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:56,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2035448797, now seen corresponding path program 1 times [2024-11-28 03:36:56,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:56,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433593820] [2024-11-28 03:36:56,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:56,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:59,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433593820] [2024-11-28 03:36:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433593820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:59,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:59,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:36:59,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091451341] [2024-11-28 03:36:59,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:59,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:36:59,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:59,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:36:59,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:59,756 INFO L87 Difference]: Start difference. First operand 41785 states and 57750 transitions. Second operand has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:00,415 INFO L93 Difference]: Finished difference Result 81485 states and 112885 transitions. [2024-11-28 03:37:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:37:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 498 [2024-11-28 03:37:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:00,442 INFO L225 Difference]: With dead ends: 81485 [2024-11-28 03:37:00,442 INFO L226 Difference]: Without dead ends: 41793 [2024-11-28 03:37:00,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:37:00,460 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 871 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:00,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 2849 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:37:00,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41793 states. [2024-11-28 03:37:00,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41793 to 41789. [2024-11-28 03:37:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41789 states, 41788 states have (on average 1.38207140805973) internal successors, (57754), 41788 states have internal predecessors, (57754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:00,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41789 states to 41789 states and 57754 transitions. [2024-11-28 03:37:00,767 INFO L78 Accepts]: Start accepts. Automaton has 41789 states and 57754 transitions. Word has length 498 [2024-11-28 03:37:00,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:00,767 INFO L471 AbstractCegarLoop]: Abstraction has 41789 states and 57754 transitions. [2024-11-28 03:37:00,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:00,768 INFO L276 IsEmpty]: Start isEmpty. Operand 41789 states and 57754 transitions. [2024-11-28 03:37:00,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-28 03:37:00,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:00,795 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:00,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:37:00,795 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:00,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:00,796 INFO L85 PathProgramCache]: Analyzing trace with hash 283943266, now seen corresponding path program 1 times [2024-11-28 03:37:00,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:00,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840820808] [2024-11-28 03:37:00,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:00,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:01,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:01,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840820808] [2024-11-28 03:37:01,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840820808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:01,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:37:01,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:37:01,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146683380] [2024-11-28 03:37:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:01,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:37:01,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:01,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:37:01,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:37:01,801 INFO L87 Difference]: Start difference. First operand 41789 states and 57754 transitions. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:01,951 INFO L93 Difference]: Finished difference Result 81627 states and 113091 transitions. [2024-11-28 03:37:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:37:01,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 499 [2024-11-28 03:37:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:01,976 INFO L225 Difference]: With dead ends: 81627 [2024-11-28 03:37:01,976 INFO L226 Difference]: Without dead ends: 41931 [2024-11-28 03:37:01,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 03:37:01,994 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 99 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 4807 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:01,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 4807 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:37:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41931 states. [2024-11-28 03:37:02,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41931 to 41809. [2024-11-28 03:37:02,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41809 states, 41808 states have (on average 1.382079984691925) internal successors, (57782), 41808 states have internal predecessors, (57782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41809 states to 41809 states and 57782 transitions. [2024-11-28 03:37:02,320 INFO L78 Accepts]: Start accepts. Automaton has 41809 states and 57782 transitions. Word has length 499 [2024-11-28 03:37:02,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:02,320 INFO L471 AbstractCegarLoop]: Abstraction has 41809 states and 57782 transitions. [2024-11-28 03:37:02,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:02,320 INFO L276 IsEmpty]: Start isEmpty. Operand 41809 states and 57782 transitions. [2024-11-28 03:37:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-28 03:37:02,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:02,346 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:02,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:37:02,346 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:02,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:02,346 INFO L85 PathProgramCache]: Analyzing trace with hash -189027237, now seen corresponding path program 1 times [2024-11-28 03:37:02,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:02,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510858254] [2024-11-28 03:37:02,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:02,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:05,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:05,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510858254] [2024-11-28 03:37:05,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510858254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:05,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:37:05,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:37:05,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824591555] [2024-11-28 03:37:05,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:05,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:37:05,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:05,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:37:05,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:37:05,499 INFO L87 Difference]: Start difference. First operand 41809 states and 57782 transitions. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:06,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:06,299 INFO L93 Difference]: Finished difference Result 81529 states and 112943 transitions. [2024-11-28 03:37:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:37:06,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 499 [2024-11-28 03:37:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:06,332 INFO L225 Difference]: With dead ends: 81529 [2024-11-28 03:37:06,332 INFO L226 Difference]: Without dead ends: 41813 [2024-11-28 03:37:06,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 03:37:06,352 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 825 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:06,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2849 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:37:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41813 states. [2024-11-28 03:37:06,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41813 to 41811. [2024-11-28 03:37:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41811 states, 41810 states have (on average 1.3820617077254245) internal successors, (57784), 41810 states have internal predecessors, (57784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41811 states to 41811 states and 57784 transitions. [2024-11-28 03:37:06,821 INFO L78 Accepts]: Start accepts. Automaton has 41811 states and 57784 transitions. Word has length 499 [2024-11-28 03:37:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:06,822 INFO L471 AbstractCegarLoop]: Abstraction has 41811 states and 57784 transitions. [2024-11-28 03:37:06,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand 41811 states and 57784 transitions. [2024-11-28 03:37:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-28 03:37:06,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:06,868 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:06,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:37:06,868 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:06,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:06,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1744281792, now seen corresponding path program 1 times [2024-11-28 03:37:06,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:06,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334886546] [2024-11-28 03:37:06,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:06,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 46 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:10,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:10,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334886546] [2024-11-28 03:37:10,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334886546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:10,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112051982] [2024-11-28 03:37:10,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:10,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:10,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:10,247 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:10,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:37:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:12,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 238 conjuncts are in the unsatisfiable core [2024-11-28 03:37:12,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:14,061 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:14,061 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:37:14,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112051982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:14,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:37:14,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [8] total 21 [2024-11-28 03:37:14,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719480043] [2024-11-28 03:37:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:14,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:37:14,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:14,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:37:14,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:37:14,063 INFO L87 Difference]: Start difference. First operand 41811 states and 57784 transitions. Second operand has 15 states, 15 states have (on average 33.333333333333336) internal successors, (500), 15 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:17,926 INFO L93 Difference]: Finished difference Result 115483 states and 160232 transitions. [2024-11-28 03:37:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:37:17,927 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 33.333333333333336) internal successors, (500), 15 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 500 [2024-11-28 03:37:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:17,977 INFO L225 Difference]: With dead ends: 115483 [2024-11-28 03:37:17,977 INFO L226 Difference]: Without dead ends: 75765 [2024-11-28 03:37:18,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:37:18,005 INFO L435 NwaCegarLoop]: 1901 mSDtfsCounter, 6234 mSDsluCounter, 13540 mSDsCounter, 0 mSdLazyCounter, 4869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6234 SdHoareTripleChecker+Valid, 15441 SdHoareTripleChecker+Invalid, 4869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:18,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6234 Valid, 15441 Invalid, 4869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4869 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 03:37:18,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75765 states. [2024-11-28 03:37:18,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75765 to 45983. [2024-11-28 03:37:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45983 states, 45982 states have (on average 1.3808011830716367) internal successors, (63492), 45982 states have internal predecessors, (63492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45983 states to 45983 states and 63492 transitions. [2024-11-28 03:37:18,615 INFO L78 Accepts]: Start accepts. Automaton has 45983 states and 63492 transitions. Word has length 500 [2024-11-28 03:37:18,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:18,615 INFO L471 AbstractCegarLoop]: Abstraction has 45983 states and 63492 transitions. [2024-11-28 03:37:18,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 33.333333333333336) internal successors, (500), 15 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:18,615 INFO L276 IsEmpty]: Start isEmpty. Operand 45983 states and 63492 transitions. [2024-11-28 03:37:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-28 03:37:18,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:18,645 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:18,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:37:18,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f8d518-237f-4c23-999c-024edd12c569/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 03:37:18,846 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:18,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2057950942, now seen corresponding path program 1 times [2024-11-28 03:37:18,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:18,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228158053] [2024-11-28 03:37:18,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:21,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:21,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228158053] [2024-11-28 03:37:21,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228158053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:21,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:37:21,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:37:21,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879002827] [2024-11-28 03:37:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:21,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:37:21,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:21,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:37:21,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:37:21,474 INFO L87 Difference]: Start difference. First operand 45983 states and 63492 transitions. Second operand has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:37:22,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:22,018 INFO L93 Difference]: Finished difference Result 90969 states and 126169 transitions. [2024-11-28 03:37:22,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:37:22,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 500 [2024-11-28 03:37:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:22,059 INFO L225 Difference]: With dead ends: 90969 [2024-11-28 03:37:22,059 INFO L226 Difference]: Without dead ends: 47351 [2024-11-28 03:37:22,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:37:22,085 INFO L435 NwaCegarLoop]: 1202 mSDtfsCounter, 2 mSDsluCounter, 5822 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7024 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:22,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7024 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:37:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47351 states.