./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem04_label15.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/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_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem04_label15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4aaf7120b52cc740744d4677b27d4271ebf6aa7f336d79bd7baf0cb79e77cd13 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:16:47,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:16:47,952 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:16:47,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:16:47,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:16:47,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:16:47,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:16:47,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:16:47,994 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:16:47,994 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:16:47,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:16:47,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:16:47,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:16:47,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:16:47,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:16:47,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:16:47,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:16:47,998 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:16:47,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:16:47,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:16:47,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:16:48,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:16:48,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:16:48,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:16:48,000 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:16:48,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:16:48,000 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:16:48,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:16:48,000 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:48,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:48,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:16:48,001 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:16:48,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:16:48,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:16:48,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:16:48,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:16:48,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:16:48,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:16:48,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:16:48,002 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_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aaf7120b52cc740744d4677b27d4271ebf6aa7f336d79bd7baf0cb79e77cd13 [2024-11-27 23:16:48,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:16:48,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:16:48,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:16:48,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:16:48,319 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:16:48,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem04_label15.c [2024-11-27 23:16:51,244 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/data/6baa2d3f3/d8ae506233974612a783cfddb8e5225e/FLAG46d76a1c4 [2024-11-27 23:16:51,910 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:16:51,910 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/sv-benchmarks/c/eca-rers2012/Problem04_label15.c [2024-11-27 23:16:51,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/data/6baa2d3f3/d8ae506233974612a783cfddb8e5225e/FLAG46d76a1c4 [2024-11-27 23:16:51,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/data/6baa2d3f3/d8ae506233974612a783cfddb8e5225e [2024-11-27 23:16:51,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:16:51,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:16:51,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:51,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:16:51,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:16:51,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:51" (1/1) ... [2024-11-27 23:16:51,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ae97c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:51, skipping insertion in model container [2024-11-27 23:16:51,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:51" (1/1) ... [2024-11-27 23:16:52,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:16:53,582 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_60322e38-e996-494b-9c71-b912909d741d/sv-benchmarks/c/eca-rers2012/Problem04_label15.c[179509,179522] [2024-11-27 23:16:53,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:53,624 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:16:54,206 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_60322e38-e996-494b-9c71-b912909d741d/sv-benchmarks/c/eca-rers2012/Problem04_label15.c[179509,179522] [2024-11-27 23:16:54,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:54,247 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:16:54,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54 WrapperNode [2024-11-27 23:16:54,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:54,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:54,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:16:54,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:16:54,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,576 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5575 [2024-11-27 23:16:54,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:54,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:16:54,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:16:54,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:16:54,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,743 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]. [2024-11-27 23:16:54,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,845 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:54,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:16:54,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:16:54,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:16:55,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:16:55,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (1/1) ... [2024-11-27 23:16:55,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:55,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:55,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:16:55,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:16:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:16:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:16:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:16:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:16:55,178 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:16:55,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:17:01,052 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2024-11-27 23:17:01,053 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:17:01,095 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:17:01,095 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:17:01,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:17:01 BoogieIcfgContainer [2024-11-27 23:17:01,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:17:01,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:17:01,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:17:01,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:17:01,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:16:51" (1/3) ... [2024-11-27 23:17:01,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14952b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:17:01, skipping insertion in model container [2024-11-27 23:17:01,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:54" (2/3) ... [2024-11-27 23:17:01,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14952b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:17:01, skipping insertion in model container [2024-11-27 23:17:01,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:17:01" (3/3) ... [2024-11-27 23:17:01,109 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem04_label15.c [2024-11-27 23:17:01,124 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:17:01,125 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem04_label15.c that has 1 procedures, 885 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:17:01,216 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:17:01,232 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;@300c28b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:17:01,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:17:01,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 885 states, 883 states have (on average 1.9229898074745186) internal successors, (1698), 884 states have internal predecessors, (1698), 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) [2024-11-27 23:17:01,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-27 23:17:01,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:01,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:01,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:01,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:01,309 INFO L85 PathProgramCache]: Analyzing trace with hash -831636132, now seen corresponding path program 1 times [2024-11-27 23:17:01,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:01,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238300035] [2024-11-27 23:17:01,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:01,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:05,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238300035] [2024-11-27 23:17:05,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238300035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:05,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:05,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:05,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108135055] [2024-11-27 23:17:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:06,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:06,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:06,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:06,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:06,037 INFO L87 Difference]: Start difference. First operand has 885 states, 883 states have (on average 1.9229898074745186) internal successors, (1698), 884 states have internal predecessors, (1698), 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 194.75) internal successors, (779), 3 states have internal predecessors, (779), 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) [2024-11-27 23:17:15,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:15,629 INFO L93 Difference]: Finished difference Result 4174 states and 8184 transitions. [2024-11-27 23:17:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:17:15,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 194.75) internal successors, (779), 3 states have internal predecessors, (779), 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 779 [2024-11-27 23:17:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:15,680 INFO L225 Difference]: With dead ends: 4174 [2024-11-27 23:17:15,683 INFO L226 Difference]: Without dead ends: 3219 [2024-11-27 23:17:15,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:17:15,700 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 1802 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5220 mSolverCounterSat, 1987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 7207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1987 IncrementalHoareTripleChecker+Valid, 5220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:15,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 275 Invalid, 7207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1987 Valid, 5220 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-27 23:17:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2024-11-27 23:17:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 2458. [2024-11-27 23:17:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2457 states have (on average 1.5474155474155473) internal successors, (3802), 2457 states have internal predecessors, (3802), 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) [2024-11-27 23:17:15,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3802 transitions. [2024-11-27 23:17:15,893 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3802 transitions. Word has length 779 [2024-11-27 23:17:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:15,899 INFO L471 AbstractCegarLoop]: Abstraction has 2458 states and 3802 transitions. [2024-11-27 23:17:15,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.75) internal successors, (779), 3 states have internal predecessors, (779), 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) [2024-11-27 23:17:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3802 transitions. [2024-11-27 23:17:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2024-11-27 23:17:15,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:15,937 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:15,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:17:15,938 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:15,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:15,940 INFO L85 PathProgramCache]: Analyzing trace with hash 942736769, now seen corresponding path program 1 times [2024-11-27 23:17:15,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:15,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192166398] [2024-11-27 23:17:15,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:18,315 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:17:18,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:18,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192166398] [2024-11-27 23:17:18,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192166398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:18,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:18,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:18,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411279883] [2024-11-27 23:17:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:18,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:17:18,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:18,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:17:18,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:18,323 INFO L87 Difference]: Start difference. First operand 2458 states and 3802 transitions. Second operand has 4 states, 4 states have (on average 199.5) internal successors, (798), 3 states have internal predecessors, (798), 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) [2024-11-27 23:17:25,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:25,993 INFO L93 Difference]: Finished difference Result 8186 states and 13540 transitions. [2024-11-27 23:17:25,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:17:25,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.5) internal successors, (798), 3 states have internal predecessors, (798), 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 798 [2024-11-27 23:17:25,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:26,015 INFO L225 Difference]: With dead ends: 8186 [2024-11-27 23:17:26,016 INFO L226 Difference]: Without dead ends: 5730 [2024-11-27 23:17:26,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:17:26,021 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 1728 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4982 mSolverCounterSat, 1488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 6470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1488 IncrementalHoareTripleChecker+Valid, 4982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:26,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 535 Invalid, 6470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1488 Valid, 4982 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-27 23:17:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2024-11-27 23:17:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 5730. [2024-11-27 23:17:26,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5729 states have (on average 1.4494676208762436) internal successors, (8304), 5729 states have internal predecessors, (8304), 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) [2024-11-27 23:17:26,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 8304 transitions. [2024-11-27 23:17:26,160 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 8304 transitions. Word has length 798 [2024-11-27 23:17:26,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:26,161 INFO L471 AbstractCegarLoop]: Abstraction has 5730 states and 8304 transitions. [2024-11-27 23:17:26,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.5) internal successors, (798), 3 states have internal predecessors, (798), 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) [2024-11-27 23:17:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 8304 transitions. [2024-11-27 23:17:26,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2024-11-27 23:17:26,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:26,196 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:17:26,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:26,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:26,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1932596985, now seen corresponding path program 1 times [2024-11-27 23:17:26,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:26,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978312175] [2024-11-27 23:17:26,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:26,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-27 23:17:27,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:27,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978312175] [2024-11-27 23:17:27,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978312175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:27,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:27,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:27,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771634620] [2024-11-27 23:17:27,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:27,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:27,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:27,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:27,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:27,269 INFO L87 Difference]: Start difference. First operand 5730 states and 8304 transitions. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 2 states have internal predecessors, (797), 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) [2024-11-27 23:17:31,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:31,088 INFO L93 Difference]: Finished difference Result 16366 states and 24077 transitions. [2024-11-27 23:17:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:31,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 2 states have internal predecessors, (797), 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 815 [2024-11-27 23:17:31,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:31,124 INFO L225 Difference]: With dead ends: 16366 [2024-11-27 23:17:31,124 INFO L226 Difference]: Without dead ends: 10638 [2024-11-27 23:17:31,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:31,132 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 986 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 3162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:31,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 498 Invalid, 3162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 23:17:31,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10638 states. [2024-11-27 23:17:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10638 to 10638. [2024-11-27 23:17:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10638 states, 10637 states have (on average 1.3346808310613896) internal successors, (14197), 10637 states have internal predecessors, (14197), 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) [2024-11-27 23:17:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10638 states to 10638 states and 14197 transitions. [2024-11-27 23:17:31,343 INFO L78 Accepts]: Start accepts. Automaton has 10638 states and 14197 transitions. Word has length 815 [2024-11-27 23:17:31,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:31,343 INFO L471 AbstractCegarLoop]: Abstraction has 10638 states and 14197 transitions. [2024-11-27 23:17:31,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 2 states have internal predecessors, (797), 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) [2024-11-27 23:17:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand 10638 states and 14197 transitions. [2024-11-27 23:17:31,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2024-11-27 23:17:31,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:31,368 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:31,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:17:31,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:31,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:31,370 INFO L85 PathProgramCache]: Analyzing trace with hash 812092770, now seen corresponding path program 1 times [2024-11-27 23:17:31,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:31,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602976269] [2024-11-27 23:17:31,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:31,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 23:17:32,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:32,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602976269] [2024-11-27 23:17:32,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602976269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:32,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:32,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:32,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427147069] [2024-11-27 23:17:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:32,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:32,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:32,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:32,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:32,463 INFO L87 Difference]: Start difference. First operand 10638 states and 14197 transitions. Second operand has 3 states, 3 states have (on average 268.0) internal successors, (804), 2 states have internal predecessors, (804), 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) [2024-11-27 23:17:35,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:35,964 INFO L93 Difference]: Finished difference Result 24546 states and 33526 transitions. [2024-11-27 23:17:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:35,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 2 states have internal predecessors, (804), 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 828 [2024-11-27 23:17:35,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:36,000 INFO L225 Difference]: With dead ends: 24546 [2024-11-27 23:17:36,001 INFO L226 Difference]: Without dead ends: 13910 [2024-11-27 23:17:36,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:36,082 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 976 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 1166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 3446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1166 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:36,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 213 Invalid, 3446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1166 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 23:17:36,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13910 states. [2024-11-27 23:17:36,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13910 to 13910. [2024-11-27 23:17:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13910 states, 13909 states have (on average 1.3361852038248616) internal successors, (18585), 13909 states have internal predecessors, (18585), 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) [2024-11-27 23:17:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13910 states to 13910 states and 18585 transitions. [2024-11-27 23:17:36,330 INFO L78 Accepts]: Start accepts. Automaton has 13910 states and 18585 transitions. Word has length 828 [2024-11-27 23:17:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:36,330 INFO L471 AbstractCegarLoop]: Abstraction has 13910 states and 18585 transitions. [2024-11-27 23:17:36,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 2 states have internal predecessors, (804), 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) [2024-11-27 23:17:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 13910 states and 18585 transitions. [2024-11-27 23:17:36,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2024-11-27 23:17:36,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:36,366 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:36,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:17:36,367 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:36,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:36,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2101574297, now seen corresponding path program 1 times [2024-11-27 23:17:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:36,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482232093] [2024-11-27 23:17:36,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:36,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-27 23:17:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482232093] [2024-11-27 23:17:37,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482232093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:37,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:37,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:37,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843977060] [2024-11-27 23:17:37,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:37,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:37,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:37,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:37,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:37,143 INFO L87 Difference]: Start difference. First operand 13910 states and 18585 transitions. Second operand has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2024-11-27 23:17:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:40,932 INFO L93 Difference]: Finished difference Result 40906 states and 54920 transitions. [2024-11-27 23:17:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:40,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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 880 [2024-11-27 23:17:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:40,992 INFO L225 Difference]: With dead ends: 40906 [2024-11-27 23:17:40,992 INFO L226 Difference]: Without dead ends: 26998 [2024-11-27 23:17:41,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:41,008 INFO L435 NwaCegarLoop]: 1438 mSDtfsCounter, 755 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 3313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:41,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1447 Invalid, 3313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [936 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-27 23:17:41,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26998 states. [2024-11-27 23:17:41,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26998 to 26998. [2024-11-27 23:17:41,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26998 states, 26997 states have (on average 1.2952179871837612) internal successors, (34967), 26997 states have internal predecessors, (34967), 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) [2024-11-27 23:17:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26998 states to 26998 states and 34967 transitions. [2024-11-27 23:17:41,514 INFO L78 Accepts]: Start accepts. Automaton has 26998 states and 34967 transitions. Word has length 880 [2024-11-27 23:17:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:41,515 INFO L471 AbstractCegarLoop]: Abstraction has 26998 states and 34967 transitions. [2024-11-27 23:17:41,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2024-11-27 23:17:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 26998 states and 34967 transitions. [2024-11-27 23:17:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2024-11-27 23:17:41,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:41,560 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:41,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:17:41,560 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:41,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:41,561 INFO L85 PathProgramCache]: Analyzing trace with hash -479278313, now seen corresponding path program 1 times [2024-11-27 23:17:41,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:41,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069958983] [2024-11-27 23:17:41,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:41,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 23:17:42,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:42,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069958983] [2024-11-27 23:17:42,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069958983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:42,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:42,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:42,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218227287] [2024-11-27 23:17:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:42,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:42,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:42,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:42,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:42,578 INFO L87 Difference]: Start difference. First operand 26998 states and 34967 transitions. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-11-27 23:17:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:45,767 INFO L93 Difference]: Finished difference Result 53994 states and 69932 transitions. [2024-11-27 23:17:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:45,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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 932 [2024-11-27 23:17:45,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:45,829 INFO L225 Difference]: With dead ends: 53994 [2024-11-27 23:17:45,829 INFO L226 Difference]: Without dead ends: 26998 [2024-11-27 23:17:45,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:45,849 INFO L435 NwaCegarLoop]: 1120 mSDtfsCounter, 839 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2866 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 2866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:45,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1128 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 2866 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:17:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26998 states. [2024-11-27 23:17:46,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26998 to 26998. [2024-11-27 23:17:46,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26998 states, 26997 states have (on average 1.2489906285883616) internal successors, (33719), 26997 states have internal predecessors, (33719), 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) [2024-11-27 23:17:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26998 states to 26998 states and 33719 transitions. [2024-11-27 23:17:46,305 INFO L78 Accepts]: Start accepts. Automaton has 26998 states and 33719 transitions. Word has length 932 [2024-11-27 23:17:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:46,305 INFO L471 AbstractCegarLoop]: Abstraction has 26998 states and 33719 transitions. [2024-11-27 23:17:46,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-11-27 23:17:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 26998 states and 33719 transitions. [2024-11-27 23:17:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2024-11-27 23:17:46,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:46,335 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:46,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:17:46,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:46,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:46,337 INFO L85 PathProgramCache]: Analyzing trace with hash 542160618, now seen corresponding path program 1 times [2024-11-27 23:17:46,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:46,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806635587] [2024-11-27 23:17:46,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:46,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-27 23:17:46,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:46,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806635587] [2024-11-27 23:17:46,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806635587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:46,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:46,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:46,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352818433] [2024-11-27 23:17:46,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:46,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:46,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:46,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:46,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:46,974 INFO L87 Difference]: Start difference. First operand 26998 states and 33719 transitions. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 2 states have internal predecessors, (925), 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) [2024-11-27 23:17:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:50,650 INFO L93 Difference]: Finished difference Result 76898 states and 96618 transitions. [2024-11-27 23:17:50,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:50,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 2 states have internal predecessors, (925), 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 975 [2024-11-27 23:17:50,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:50,754 INFO L225 Difference]: With dead ends: 76898 [2024-11-27 23:17:50,754 INFO L226 Difference]: Without dead ends: 49902 [2024-11-27 23:17:50,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:50,777 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 880 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:50,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 551 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 23:17:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49902 states. [2024-11-27 23:17:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49902 to 39268. [2024-11-27 23:17:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39268 states, 39267 states have (on average 1.2153971528255278) internal successors, (47725), 39267 states have internal predecessors, (47725), 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) [2024-11-27 23:17:51,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39268 states to 39268 states and 47725 transitions. [2024-11-27 23:17:51,500 INFO L78 Accepts]: Start accepts. Automaton has 39268 states and 47725 transitions. Word has length 975 [2024-11-27 23:17:51,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:51,501 INFO L471 AbstractCegarLoop]: Abstraction has 39268 states and 47725 transitions. [2024-11-27 23:17:51,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 2 states have internal predecessors, (925), 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) [2024-11-27 23:17:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 39268 states and 47725 transitions. [2024-11-27 23:17:51,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2024-11-27 23:17:51,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:51,564 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:51,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:17:51,564 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:51,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:51,565 INFO L85 PathProgramCache]: Analyzing trace with hash 263333945, now seen corresponding path program 1 times [2024-11-27 23:17:51,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:51,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725759453] [2024-11-27 23:17:51,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:51,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-27 23:17:52,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:52,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725759453] [2024-11-27 23:17:52,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725759453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:52,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:52,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:17:52,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812267778] [2024-11-27 23:17:52,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:52,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:52,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:52,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:52,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:52,448 INFO L87 Difference]: Start difference. First operand 39268 states and 47725 transitions. Second operand has 3 states, 3 states have (on average 277.0) internal successors, (831), 2 states have internal predecessors, (831), 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) [2024-11-27 23:17:55,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:55,871 INFO L93 Difference]: Finished difference Result 100620 states and 121290 transitions. [2024-11-27 23:17:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:17:55,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 277.0) internal successors, (831), 2 states have internal predecessors, (831), 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 1021 [2024-11-27 23:17:55,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:55,938 INFO L225 Difference]: With dead ends: 100620 [2024-11-27 23:17:55,938 INFO L226 Difference]: Without dead ends: 61354 [2024-11-27 23:17:55,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:55,967 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 987 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:55,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 317 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 23:17:56,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61354 states. [2024-11-27 23:17:56,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61354 to 59718. [2024-11-27 23:17:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59718 states, 59717 states have (on average 1.1438451362258653) internal successors, (68307), 59717 states have internal predecessors, (68307), 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) [2024-11-27 23:17:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59718 states to 59718 states and 68307 transitions. [2024-11-27 23:17:56,791 INFO L78 Accepts]: Start accepts. Automaton has 59718 states and 68307 transitions. Word has length 1021 [2024-11-27 23:17:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:56,791 INFO L471 AbstractCegarLoop]: Abstraction has 59718 states and 68307 transitions. [2024-11-27 23:17:56,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.0) internal successors, (831), 2 states have internal predecessors, (831), 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) [2024-11-27 23:17:56,792 INFO L276 IsEmpty]: Start isEmpty. Operand 59718 states and 68307 transitions. [2024-11-27 23:17:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1175 [2024-11-27 23:17:56,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:56,837 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:56,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:17:56,838 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:56,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:56,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1731062542, now seen corresponding path program 1 times [2024-11-27 23:17:56,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:56,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90795914] [2024-11-27 23:17:56,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:56,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 603 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-27 23:17:58,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:58,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90795914] [2024-11-27 23:17:58,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90795914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:58,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:58,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:17:58,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732970065] [2024-11-27 23:17:58,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:58,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:17:58,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:58,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:17:58,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:17:58,806 INFO L87 Difference]: Start difference. First operand 59718 states and 68307 transitions. Second operand has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 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) [2024-11-27 23:18:02,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:02,236 INFO L93 Difference]: Finished difference Result 121888 states and 139198 transitions. [2024-11-27 23:18:02,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:02,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 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 1174 [2024-11-27 23:18:02,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:02,304 INFO L225 Difference]: With dead ends: 121888 [2024-11-27 23:18:02,304 INFO L226 Difference]: Without dead ends: 62172 [2024-11-27 23:18:02,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:02,343 INFO L435 NwaCegarLoop]: 1578 mSDtfsCounter, 773 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:02,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1587 Invalid, 2510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:18:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62172 states. [2024-11-27 23:18:02,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62172 to 61354. [2024-11-27 23:18:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61354 states, 61353 states have (on average 1.1380535589131746) internal successors, (69823), 61353 states have internal predecessors, (69823), 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) [2024-11-27 23:18:03,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61354 states to 61354 states and 69823 transitions. [2024-11-27 23:18:03,050 INFO L78 Accepts]: Start accepts. Automaton has 61354 states and 69823 transitions. Word has length 1174 [2024-11-27 23:18:03,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:03,051 INFO L471 AbstractCegarLoop]: Abstraction has 61354 states and 69823 transitions. [2024-11-27 23:18:03,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 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) [2024-11-27 23:18:03,051 INFO L276 IsEmpty]: Start isEmpty. Operand 61354 states and 69823 transitions. [2024-11-27 23:18:03,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1216 [2024-11-27 23:18:03,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:03,095 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:03,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:18:03,096 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:03,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:03,097 INFO L85 PathProgramCache]: Analyzing trace with hash -574707865, now seen corresponding path program 1 times [2024-11-27 23:18:03,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:03,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212153569] [2024-11-27 23:18:03,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:03,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-27 23:18:03,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:03,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212153569] [2024-11-27 23:18:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212153569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:03,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:03,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:03,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706994929] [2024-11-27 23:18:03,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:03,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:03,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:03,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:03,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:03,990 INFO L87 Difference]: Start difference. First operand 61354 states and 69823 transitions. Second operand has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 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) [2024-11-27 23:18:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:07,619 INFO L93 Difference]: Finished difference Result 140702 states and 161084 transitions. [2024-11-27 23:18:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:07,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 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 1215 [2024-11-27 23:18:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:07,678 INFO L225 Difference]: With dead ends: 140702 [2024-11-27 23:18:07,678 INFO L226 Difference]: Without dead ends: 79350 [2024-11-27 23:18:07,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:07,700 INFO L435 NwaCegarLoop]: 1440 mSDtfsCounter, 796 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:07,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1449 Invalid, 2997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 23:18:07,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79350 states. [2024-11-27 23:18:08,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79350 to 77714. [2024-11-27 23:18:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77714 states, 77713 states have (on average 1.1297594996976053) internal successors, (87797), 77713 states have internal predecessors, (87797), 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) [2024-11-27 23:18:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77714 states to 77714 states and 87797 transitions. [2024-11-27 23:18:08,459 INFO L78 Accepts]: Start accepts. Automaton has 77714 states and 87797 transitions. Word has length 1215 [2024-11-27 23:18:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:08,460 INFO L471 AbstractCegarLoop]: Abstraction has 77714 states and 87797 transitions. [2024-11-27 23:18:08,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 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) [2024-11-27 23:18:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 77714 states and 87797 transitions. [2024-11-27 23:18:08,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1252 [2024-11-27 23:18:08,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:08,512 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:08,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:18:08,513 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:08,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 517984653, now seen corresponding path program 1 times [2024-11-27 23:18:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:08,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952456868] [2024-11-27 23:18:08,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-27 23:18:10,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:10,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952456868] [2024-11-27 23:18:10,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952456868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:10,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:10,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:10,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418361175] [2024-11-27 23:18:10,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:10,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:10,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:10,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:10,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:10,340 INFO L87 Difference]: Start difference. First operand 77714 states and 87797 transitions. Second operand has 3 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 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) [2024-11-27 23:18:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:13,752 INFO L93 Difference]: Finished difference Result 156244 states and 176428 transitions. [2024-11-27 23:18:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:13,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 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 1251 [2024-11-27 23:18:13,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:13,830 INFO L225 Difference]: With dead ends: 156244 [2024-11-27 23:18:13,830 INFO L226 Difference]: Without dead ends: 78532 [2024-11-27 23:18:13,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:13,864 INFO L435 NwaCegarLoop]: 643 mSDtfsCounter, 835 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:13,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 651 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 23:18:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78532 states. [2024-11-27 23:18:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78532 to 77714. [2024-11-27 23:18:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77714 states, 77713 states have (on average 1.1275976992266417) internal successors, (87629), 77713 states have internal predecessors, (87629), 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) [2024-11-27 23:18:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77714 states to 77714 states and 87629 transitions. [2024-11-27 23:18:14,770 INFO L78 Accepts]: Start accepts. Automaton has 77714 states and 87629 transitions. Word has length 1251 [2024-11-27 23:18:14,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:14,771 INFO L471 AbstractCegarLoop]: Abstraction has 77714 states and 87629 transitions. [2024-11-27 23:18:14,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 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) [2024-11-27 23:18:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 77714 states and 87629 transitions. [2024-11-27 23:18:14,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1373 [2024-11-27 23:18:14,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:14,845 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:14,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:18:14,845 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:14,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:14,846 INFO L85 PathProgramCache]: Analyzing trace with hash 213403704, now seen corresponding path program 1 times [2024-11-27 23:18:14,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:14,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210453764] [2024-11-27 23:18:14,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:14,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:15,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-27 23:18:15,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:15,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210453764] [2024-11-27 23:18:15,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210453764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:15,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:15,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:15,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010163807] [2024-11-27 23:18:15,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:15,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:15,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:15,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:15,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:15,599 INFO L87 Difference]: Start difference. First operand 77714 states and 87629 transitions. Second operand has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 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) [2024-11-27 23:18:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:19,587 INFO L93 Difference]: Finished difference Result 181602 states and 204973 transitions. [2024-11-27 23:18:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:19,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 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 1372 [2024-11-27 23:18:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:19,681 INFO L225 Difference]: With dead ends: 181602 [2024-11-27 23:18:19,681 INFO L226 Difference]: Without dead ends: 103890 [2024-11-27 23:18:19,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:19,717 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 809 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 1197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1197 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:19,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 210 Invalid, 3572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1197 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-27 23:18:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103890 states. [2024-11-27 23:18:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103890 to 94074. [2024-11-27 23:18:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94074 states, 94073 states have (on average 1.1304837732399307) internal successors, (106348), 94073 states have internal predecessors, (106348), 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) [2024-11-27 23:18:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94074 states to 94074 states and 106348 transitions. [2024-11-27 23:18:20,822 INFO L78 Accepts]: Start accepts. Automaton has 94074 states and 106348 transitions. Word has length 1372 [2024-11-27 23:18:20,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:20,823 INFO L471 AbstractCegarLoop]: Abstraction has 94074 states and 106348 transitions. [2024-11-27 23:18:20,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 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) [2024-11-27 23:18:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 94074 states and 106348 transitions. [2024-11-27 23:18:21,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1430 [2024-11-27 23:18:21,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:21,220 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:21,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:18:21,220 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:21,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:21,222 INFO L85 PathProgramCache]: Analyzing trace with hash 309850165, now seen corresponding path program 1 times [2024-11-27 23:18:21,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:21,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851217851] [2024-11-27 23:18:21,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:21,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1178 backedges. 648 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-27 23:18:22,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:22,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851217851] [2024-11-27 23:18:22,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851217851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:22,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:22,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:22,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543553922] [2024-11-27 23:18:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:22,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:22,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:22,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:22,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:22,788 INFO L87 Difference]: Start difference. First operand 94074 states and 106348 transitions. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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) [2024-11-27 23:18:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:26,596 INFO L93 Difference]: Finished difference Result 197962 states and 223422 transitions. [2024-11-27 23:18:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:26,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 1429 [2024-11-27 23:18:26,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:26,706 INFO L225 Difference]: With dead ends: 197962 [2024-11-27 23:18:26,706 INFO L226 Difference]: Without dead ends: 103890 [2024-11-27 23:18:26,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:26,751 INFO L435 NwaCegarLoop]: 1405 mSDtfsCounter, 45 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 3412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:26,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1414 Invalid, 3412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 23:18:27,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103890 states. [2024-11-27 23:18:27,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103890 to 97346. [2024-11-27 23:18:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97346 states, 97345 states have (on average 1.1225024397760544) internal successors, (109270), 97345 states have internal predecessors, (109270), 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) [2024-11-27 23:18:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97346 states to 97346 states and 109270 transitions. [2024-11-27 23:18:27,850 INFO L78 Accepts]: Start accepts. Automaton has 97346 states and 109270 transitions. Word has length 1429 [2024-11-27 23:18:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:27,851 INFO L471 AbstractCegarLoop]: Abstraction has 97346 states and 109270 transitions. [2024-11-27 23:18:27,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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) [2024-11-27 23:18:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 97346 states and 109270 transitions. [2024-11-27 23:18:27,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1440 [2024-11-27 23:18:27,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:27,899 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:18:27,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:18:27,899 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:27,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1197036577, now seen corresponding path program 1 times [2024-11-27 23:18:27,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:27,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348957383] [2024-11-27 23:18:27,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:27,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 699 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:18:29,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:29,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348957383] [2024-11-27 23:18:29,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348957383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:29,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:29,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:29,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024009032] [2024-11-27 23:18:29,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:29,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:18:29,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:29,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:18:29,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:18:29,686 INFO L87 Difference]: Start difference. First operand 97346 states and 109270 transitions. Second operand has 4 states, 4 states have (on average 354.0) internal successors, (1416), 3 states have internal predecessors, (1416), 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) [2024-11-27 23:18:34,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:34,727 INFO L93 Difference]: Finished difference Result 198780 states and 222838 transitions. [2024-11-27 23:18:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:18:34,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 354.0) internal successors, (1416), 3 states have internal predecessors, (1416), 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 1439 [2024-11-27 23:18:34,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:34,812 INFO L225 Difference]: With dead ends: 198780 [2024-11-27 23:18:34,812 INFO L226 Difference]: Without dead ends: 101436 [2024-11-27 23:18:34,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:18:34,847 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 1403 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3846 mSolverCounterSat, 1454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 5300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1454 IncrementalHoareTripleChecker+Valid, 3846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:34,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 487 Invalid, 5300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1454 Valid, 3846 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-27 23:18:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101436 states. [2024-11-27 23:18:35,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101436 to 101436. [2024-11-27 23:18:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101436 states, 101435 states have (on average 1.1186868437915907) internal successors, (113474), 101435 states have internal predecessors, (113474), 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) [2024-11-27 23:18:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101436 states to 101436 states and 113474 transitions. [2024-11-27 23:18:36,116 INFO L78 Accepts]: Start accepts. Automaton has 101436 states and 113474 transitions. Word has length 1439 [2024-11-27 23:18:36,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:36,117 INFO L471 AbstractCegarLoop]: Abstraction has 101436 states and 113474 transitions. [2024-11-27 23:18:36,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 354.0) internal successors, (1416), 3 states have internal predecessors, (1416), 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) [2024-11-27 23:18:36,117 INFO L276 IsEmpty]: Start isEmpty. Operand 101436 states and 113474 transitions. [2024-11-27 23:18:36,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1445 [2024-11-27 23:18:36,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:36,202 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:36,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:18:36,202 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:36,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1174711682, now seen corresponding path program 1 times [2024-11-27 23:18:36,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:36,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269568071] [2024-11-27 23:18:36,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:36,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 1162 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-27 23:18:37,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:37,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269568071] [2024-11-27 23:18:37,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269568071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:37,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:37,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:37,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374279619] [2024-11-27 23:18:37,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:37,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:37,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:37,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:37,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:37,538 INFO L87 Difference]: Start difference. First operand 101436 states and 113474 transitions. Second operand has 3 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 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) [2024-11-27 23:18:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:40,911 INFO L93 Difference]: Finished difference Result 214322 states and 238896 transitions. [2024-11-27 23:18:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 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 1444 [2024-11-27 23:18:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:41,001 INFO L225 Difference]: With dead ends: 214322 [2024-11-27 23:18:41,001 INFO L226 Difference]: Without dead ends: 103890 [2024-11-27 23:18:41,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:41,044 INFO L435 NwaCegarLoop]: 1403 mSDtfsCounter, 664 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:41,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1411 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 23:18:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103890 states. [2024-11-27 23:18:41,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103890 to 98982. [2024-11-27 23:18:42,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98982 states, 98981 states have (on average 1.0304805972863478) internal successors, (101998), 98981 states have internal predecessors, (101998), 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) [2024-11-27 23:18:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98982 states to 98982 states and 101998 transitions. [2024-11-27 23:18:42,341 INFO L78 Accepts]: Start accepts. Automaton has 98982 states and 101998 transitions. Word has length 1444 [2024-11-27 23:18:42,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:42,341 INFO L471 AbstractCegarLoop]: Abstraction has 98982 states and 101998 transitions. [2024-11-27 23:18:42,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 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) [2024-11-27 23:18:42,342 INFO L276 IsEmpty]: Start isEmpty. Operand 98982 states and 101998 transitions. [2024-11-27 23:18:42,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1448 [2024-11-27 23:18:42,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:42,385 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:42,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:18:42,385 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:42,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:42,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2138083814, now seen corresponding path program 1 times [2024-11-27 23:18:42,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:42,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32717853] [2024-11-27 23:18:42,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:42,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 1055 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-11-27 23:18:43,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:43,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32717853] [2024-11-27 23:18:43,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32717853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:43,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:43,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:43,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518505696] [2024-11-27 23:18:43,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:43,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:43,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:43,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:43,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:43,436 INFO L87 Difference]: Start difference. First operand 98982 states and 101998 transitions. Second operand has 3 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 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) [2024-11-27 23:18:46,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:46,476 INFO L93 Difference]: Finished difference Result 215958 states and 222754 transitions. [2024-11-27 23:18:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:46,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 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 1447 [2024-11-27 23:18:46,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:46,565 INFO L225 Difference]: With dead ends: 215958 [2024-11-27 23:18:46,565 INFO L226 Difference]: Without dead ends: 117796 [2024-11-27 23:18:46,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:46,597 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 765 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:46,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 102 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:18:46,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117796 states. [2024-11-27 23:18:47,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117796 to 115342. [2024-11-27 23:18:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115342 states, 115341 states have (on average 1.027735150553576) internal successors, (118540), 115341 states have internal predecessors, (118540), 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) [2024-11-27 23:18:47,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115342 states to 115342 states and 118540 transitions. [2024-11-27 23:18:47,721 INFO L78 Accepts]: Start accepts. Automaton has 115342 states and 118540 transitions. Word has length 1447 [2024-11-27 23:18:47,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:47,722 INFO L471 AbstractCegarLoop]: Abstraction has 115342 states and 118540 transitions. [2024-11-27 23:18:47,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 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) [2024-11-27 23:18:47,722 INFO L276 IsEmpty]: Start isEmpty. Operand 115342 states and 118540 transitions. [2024-11-27 23:18:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1491 [2024-11-27 23:18:47,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:47,783 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:47,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:18:47,783 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:47,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:47,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1501533134, now seen corresponding path program 1 times [2024-11-27 23:18:47,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:47,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124090126] [2024-11-27 23:18:47,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:47,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 1406 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2024-11-27 23:18:49,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:49,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124090126] [2024-11-27 23:18:49,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124090126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:49,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:49,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:49,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702497132] [2024-11-27 23:18:49,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:49,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:49,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:49,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:49,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:49,126 INFO L87 Difference]: Start difference. First operand 115342 states and 118540 transitions. Second operand has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 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) [2024-11-27 23:18:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:18:51,642 INFO L93 Difference]: Finished difference Result 232318 states and 238735 transitions. [2024-11-27 23:18:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:18:51,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 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 1490 [2024-11-27 23:18:51,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:18:51,917 INFO L225 Difference]: With dead ends: 232318 [2024-11-27 23:18:51,917 INFO L226 Difference]: Without dead ends: 117796 [2024-11-27 23:18:51,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:18:51,951 INFO L435 NwaCegarLoop]: 993 mSDtfsCounter, 743 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:18:51,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1001 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:18:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117796 states. [2024-11-27 23:18:53,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117796 to 116160. [2024-11-27 23:18:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116160 states, 116159 states have (on average 1.0247677752046764) internal successors, (119036), 116159 states have internal predecessors, (119036), 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) [2024-11-27 23:18:53,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116160 states to 116160 states and 119036 transitions. [2024-11-27 23:18:53,384 INFO L78 Accepts]: Start accepts. Automaton has 116160 states and 119036 transitions. Word has length 1490 [2024-11-27 23:18:53,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:18:53,384 INFO L471 AbstractCegarLoop]: Abstraction has 116160 states and 119036 transitions. [2024-11-27 23:18:53,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 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) [2024-11-27 23:18:53,385 INFO L276 IsEmpty]: Start isEmpty. Operand 116160 states and 119036 transitions. [2024-11-27 23:18:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1504 [2024-11-27 23:18:53,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:18:53,435 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:53,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:18:53,435 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:18:53,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1643599298, now seen corresponding path program 1 times [2024-11-27 23:18:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:53,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880115202] [2024-11-27 23:18:53,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:53,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 1381 proven. 89 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-27 23:18:56,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:56,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880115202] [2024-11-27 23:18:56,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880115202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:56,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638049220] [2024-11-27 23:18:56,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:56,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:18:56,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:56,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:18:56,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:18:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:56,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:18:56,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 1105 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2024-11-27 23:18:58,957 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:18:58,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638049220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:58,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:18:58,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-27 23:18:58,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623879558] [2024-11-27 23:18:58,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:58,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:18:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:58,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:18:58,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:18:58,966 INFO L87 Difference]: Start difference. First operand 116160 states and 119036 transitions. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 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) [2024-11-27 23:19:01,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:01,547 INFO L93 Difference]: Finished difference Result 231500 states and 237248 transitions. [2024-11-27 23:19:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:01,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 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 1503 [2024-11-27 23:19:01,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:01,630 INFO L225 Difference]: With dead ends: 231500 [2024-11-27 23:19:01,630 INFO L226 Difference]: Without dead ends: 116160 [2024-11-27 23:19:01,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1507 GetRequests, 1502 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:01,672 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 173 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:01,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 921 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:19:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116160 states. [2024-11-27 23:19:03,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116160 to 113706. [2024-11-27 23:19:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113706 states, 113705 states have (on average 1.0187150960819664) internal successors, (115833), 113705 states have internal predecessors, (115833), 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) [2024-11-27 23:19:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113706 states to 113706 states and 115833 transitions. [2024-11-27 23:19:03,161 INFO L78 Accepts]: Start accepts. Automaton has 113706 states and 115833 transitions. Word has length 1503 [2024-11-27 23:19:03,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:03,162 INFO L471 AbstractCegarLoop]: Abstraction has 113706 states and 115833 transitions. [2024-11-27 23:19:03,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 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) [2024-11-27 23:19:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 113706 states and 115833 transitions. [2024-11-27 23:19:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4735 [2024-11-27 23:19:03,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:03,591 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:19:03,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:19:03,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 23:19:03,792 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:03,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:03,793 INFO L85 PathProgramCache]: Analyzing trace with hash -34799326, now seen corresponding path program 1 times [2024-11-27 23:19:03,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:03,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130654236] [2024-11-27 23:19:03,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:03,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18111 backedges. 5329 proven. 0 refuted. 0 times theorem prover too weak. 12782 trivial. 0 not checked. [2024-11-27 23:19:09,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:09,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130654236] [2024-11-27 23:19:09,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130654236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:09,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:09,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:09,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950872682] [2024-11-27 23:19:09,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:09,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:09,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:09,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:09,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:09,428 INFO L87 Difference]: Start difference. First operand 113706 states and 115833 transitions. Second operand has 3 states, 3 states have (on average 393.3333333333333) internal successors, (1180), 3 states have internal predecessors, (1180), 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) [2024-11-27 23:19:12,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:12,476 INFO L93 Difference]: Finished difference Result 227410 states and 231661 transitions. [2024-11-27 23:19:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:12,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 393.3333333333333) internal successors, (1180), 3 states have internal predecessors, (1180), 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 4734 [2024-11-27 23:19:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:12,555 INFO L225 Difference]: With dead ends: 227410 [2024-11-27 23:19:12,555 INFO L226 Difference]: Without dead ends: 114524 [2024-11-27 23:19:12,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:12,582 INFO L435 NwaCegarLoop]: 998 mSDtfsCounter, 691 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:12,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1007 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:19:12,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114524 states. [2024-11-27 23:19:13,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114524 to 107980. [2024-11-27 23:19:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107980 states, 107979 states have (on average 1.0136508024708508) internal successors, (109453), 107979 states have internal predecessors, (109453), 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) [2024-11-27 23:19:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107980 states to 107980 states and 109453 transitions. [2024-11-27 23:19:13,678 INFO L78 Accepts]: Start accepts. Automaton has 107980 states and 109453 transitions. Word has length 4734 [2024-11-27 23:19:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:13,679 INFO L471 AbstractCegarLoop]: Abstraction has 107980 states and 109453 transitions. [2024-11-27 23:19:13,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 393.3333333333333) internal successors, (1180), 3 states have internal predecessors, (1180), 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) [2024-11-27 23:19:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 107980 states and 109453 transitions. [2024-11-27 23:19:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4745 [2024-11-27 23:19:14,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:14,128 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:19:14,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:19:14,129 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:14,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:14,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2033102488, now seen corresponding path program 1 times [2024-11-27 23:19:14,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:14,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593386839] [2024-11-27 23:19:14,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:14,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 17968 backedges. 5283 proven. 89 refuted. 0 times theorem prover too weak. 12596 trivial. 0 not checked. [2024-11-27 23:19:25,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:25,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593386839] [2024-11-27 23:19:25,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593386839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:25,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993176139] [2024-11-27 23:19:25,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:25,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:25,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:25,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:25,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:19:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:26,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 5390 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:19:26,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 17968 backedges. 10976 proven. 0 refuted. 0 times theorem prover too weak. 6992 trivial. 0 not checked. [2024-11-27 23:19:29,363 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:19:29,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993176139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:29,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:29,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-27 23:19:29,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778120614] [2024-11-27 23:19:29,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:29,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:29,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:29,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:29,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:29,370 INFO L87 Difference]: Start difference. First operand 107980 states and 109453 transitions. Second operand has 3 states, 3 states have (on average 696.3333333333334) internal successors, (2089), 3 states have internal predecessors, (2089), 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) [2024-11-27 23:19:31,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:31,953 INFO L93 Difference]: Finished difference Result 218412 states and 221383 transitions. [2024-11-27 23:19:31,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:31,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 696.3333333333334) internal successors, (2089), 3 states have internal predecessors, (2089), 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 4744 [2024-11-27 23:19:31,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:32,043 INFO L225 Difference]: With dead ends: 218412 [2024-11-27 23:19:32,043 INFO L226 Difference]: Without dead ends: 110434 [2024-11-27 23:19:32,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4748 GetRequests, 4743 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:32,088 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 143 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:32,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 997 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:19:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110434 states. [2024-11-27 23:19:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110434 to 107980. [2024-11-27 23:19:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107980 states, 107979 states have (on average 1.0121227275673974) internal successors, (109288), 107979 states have internal predecessors, (109288), 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) [2024-11-27 23:19:33,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107980 states to 107980 states and 109288 transitions. [2024-11-27 23:19:33,423 INFO L78 Accepts]: Start accepts. Automaton has 107980 states and 109288 transitions. Word has length 4744 [2024-11-27 23:19:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:33,426 INFO L471 AbstractCegarLoop]: Abstraction has 107980 states and 109288 transitions. [2024-11-27 23:19:33,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 696.3333333333334) internal successors, (2089), 3 states have internal predecessors, (2089), 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) [2024-11-27 23:19:33,427 INFO L276 IsEmpty]: Start isEmpty. Operand 107980 states and 109288 transitions. [2024-11-27 23:19:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4928 [2024-11-27 23:19:33,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:33,900 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:19:33,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:34,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:34,100 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:34,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:34,102 INFO L85 PathProgramCache]: Analyzing trace with hash 703263927, now seen corresponding path program 1 times [2024-11-27 23:19:34,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:34,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951682374] [2024-11-27 23:19:34,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:34,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 20716 backedges. 5786 proven. 89 refuted. 0 times theorem prover too weak. 14841 trivial. 0 not checked. [2024-11-27 23:19:45,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:45,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951682374] [2024-11-27 23:19:45,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951682374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:45,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217481771] [2024-11-27 23:19:45,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:45,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:45,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:45,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:45,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:19:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:47,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 5603 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:19:47,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 20716 backedges. 11875 proven. 0 refuted. 0 times theorem prover too weak. 8841 trivial. 0 not checked. [2024-11-27 23:19:49,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:19:49,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217481771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:49,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:49,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-27 23:19:49,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140031902] [2024-11-27 23:19:49,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:49,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:49,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:49,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:49,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:49,600 INFO L87 Difference]: Start difference. First operand 107980 states and 109288 transitions. Second operand has 3 states, 3 states have (on average 642.0) internal successors, (1926), 3 states have internal predecessors, (1926), 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) [2024-11-27 23:19:52,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:52,394 INFO L93 Difference]: Finished difference Result 220866 states and 223529 transitions. [2024-11-27 23:19:52,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:52,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 642.0) internal successors, (1926), 3 states have internal predecessors, (1926), 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 4927 [2024-11-27 23:19:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:52,479 INFO L225 Difference]: With dead ends: 220866 [2024-11-27 23:19:52,479 INFO L226 Difference]: Without dead ends: 113706 [2024-11-27 23:19:52,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4931 GetRequests, 4926 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:52,520 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 143 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:52,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:19:52,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113706 states. [2024-11-27 23:19:53,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113706 to 108798. [2024-11-27 23:19:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108798 states, 108797 states have (on average 1.0104506558085242) internal successors, (109934), 108797 states have internal predecessors, (109934), 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) [2024-11-27 23:19:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108798 states to 108798 states and 109934 transitions. [2024-11-27 23:19:53,454 INFO L78 Accepts]: Start accepts. Automaton has 108798 states and 109934 transitions. Word has length 4927 [2024-11-27 23:19:53,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:53,456 INFO L471 AbstractCegarLoop]: Abstraction has 108798 states and 109934 transitions. [2024-11-27 23:19:53,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 642.0) internal successors, (1926), 3 states have internal predecessors, (1926), 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) [2024-11-27 23:19:53,456 INFO L276 IsEmpty]: Start isEmpty. Operand 108798 states and 109934 transitions. [2024-11-27 23:19:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5110 [2024-11-27 23:19:53,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:53,620 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2024-11-27 23:19:53,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:19:53,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60322e38-e996-494b-9c71-b912909d741d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 23:19:53,820 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:53,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1447399761, now seen corresponding path program 1 times [2024-11-27 23:19:53,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:53,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104855208] [2024-11-27 23:19:53,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:53,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat