./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 458fab2bdfe4212d9f9b96d7c2c36af664c89502ca02bed6549d1aa757cc9448 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:04:15,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:04:16,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:04:16,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:04:16,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:04:16,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:04:16,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:04:16,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:04:16,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:04:16,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:04:16,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:04:16,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:04:16,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:04:16,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:04:16,122 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:04:16,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:04:16,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:04:16,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:04:16,124 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:04:16,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:04:16,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:04:16,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:04:16,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:04:16,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:04:16,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:04:16,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:04:16,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:04:16,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:04:16,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:04:16,126 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_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 458fab2bdfe4212d9f9b96d7c2c36af664c89502ca02bed6549d1aa757cc9448 [2024-11-24 01:04:16,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:04:16,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:04:16,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:04:16,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:04:16,409 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:04:16,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-24 01:04:19,345 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/data/92020ce51/84c2d16f61fa438cb8fa3af0e494359a/FLAGa9c44531b [2024-11-24 01:04:20,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:04:20,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-24 01:04:20,082 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/data/92020ce51/84c2d16f61fa438cb8fa3af0e494359a/FLAGa9c44531b [2024-11-24 01:04:20,102 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/data/92020ce51/84c2d16f61fa438cb8fa3af0e494359a [2024-11-24 01:04:20,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:04:20,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:04:20,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:04:20,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:04:20,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:04:20,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:04:20" (1/1) ... [2024-11-24 01:04:20,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b89eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:20, skipping insertion in model container [2024-11-24 01:04:20,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:04:20" (1/1) ... [2024-11-24 01:04:20,269 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:04:20,694 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_0fa63796-49a2-4668-8ccf-bdf360b1df89/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c[11705,11718] [2024-11-24 01:04:20,789 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_0fa63796-49a2-4668-8ccf-bdf360b1df89/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c[18766,18779] [2024-11-24 01:04:21,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:04:21,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:04:21,722 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_0fa63796-49a2-4668-8ccf-bdf360b1df89/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c[11705,11718] [2024-11-24 01:04:21,741 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_0fa63796-49a2-4668-8ccf-bdf360b1df89/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c[18766,18779] [2024-11-24 01:04:22,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:04:22,292 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:04:22,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22 WrapperNode [2024-11-24 01:04:22,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:04:22,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:04:22,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:04:22,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:04:22,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:22,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:22,905 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5096 [2024-11-24 01:04:22,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:04:22,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:04:22,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:04:22,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:04:22,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:22,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,259 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]. [2024-11-24 01:04:23,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,467 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:04:23,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:04:23,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:04:23,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:04:23,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (1/1) ... [2024-11-24 01:04:23,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:04:23,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:23,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:04:23,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:04:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:04:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:04:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:04:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:04:23,992 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:04:23,994 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:04:30,070 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-24 01:04:30,070 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:04:30,121 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:04:30,121 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:04:30,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:04:30 BoogieIcfgContainer [2024-11-24 01:04:30,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:04:30,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:04:30,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:04:30,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:04:30,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:04:20" (1/3) ... [2024-11-24 01:04:30,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5529b24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:04:30, skipping insertion in model container [2024-11-24 01:04:30,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:22" (2/3) ... [2024-11-24 01:04:30,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5529b24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:04:30, skipping insertion in model container [2024-11-24 01:04:30,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:04:30" (3/3) ... [2024-11-24 01:04:30,139 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-24 01:04:30,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:04:30,159 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label04.c that has 1 procedures, 901 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 01:04:30,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:04:30,296 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;@2423dda7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:04:30,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:04:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 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) [2024-11-24 01:04:30,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 01:04:30,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:30,317 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] [2024-11-24 01:04:30,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:30,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:30,324 INFO L85 PathProgramCache]: Analyzing trace with hash 372784668, now seen corresponding path program 1 times [2024-11-24 01:04:30,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:30,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416442241] [2024-11-24 01:04:30,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:30,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:30,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:30,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416442241] [2024-11-24 01:04:30,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416442241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:30,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:30,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:04:30,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629999663] [2024-11-24 01:04:30,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:30,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:04:30,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:30,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:04:30,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:04:30,679 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 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 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-11-24 01:04:30,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:30,815 INFO L93 Difference]: Finished difference Result 1763 states and 3348 transitions. [2024-11-24 01:04:30,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:04:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2024-11-24 01:04:30,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:30,841 INFO L225 Difference]: With dead ends: 1763 [2024-11-24 01:04:30,841 INFO L226 Difference]: Without dead ends: 835 [2024-11-24 01:04:30,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:04:30,850 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:30,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-24 01:04:30,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-24 01:04:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 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) [2024-11-24 01:04:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2024-11-24 01:04:30,941 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2024-11-24 01:04:30,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:30,941 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2024-11-24 01:04:30,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-11-24 01:04:30,942 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2024-11-24 01:04:30,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 01:04:30,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:30,943 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] [2024-11-24 01:04:30,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:04:30,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:30,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:30,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1621360038, now seen corresponding path program 1 times [2024-11-24 01:04:30,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:30,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21205860] [2024-11-24 01:04:30,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:30,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:31,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:31,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:31,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21205860] [2024-11-24 01:04:31,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21205860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:31,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:31,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:04:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876601971] [2024-11-24 01:04:31,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:31,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:04:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:31,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:04:31,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:04:31,412 INFO L87 Difference]: Start difference. First operand 835 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-24 01:04:31,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:31,597 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2024-11-24 01:04:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:04:31,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-24 01:04:31,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:31,604 INFO L225 Difference]: With dead ends: 883 [2024-11-24 01:04:31,607 INFO L226 Difference]: Without dead ends: 835 [2024-11-24 01:04:31,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:04:31,608 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:31,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-24 01:04:31,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-24 01:04:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 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) [2024-11-24 01:04:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2024-11-24 01:04:31,667 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2024-11-24 01:04:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:31,667 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2024-11-24 01:04:31,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-24 01:04:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2024-11-24 01:04:31,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:04:31,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:31,671 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] [2024-11-24 01:04:31,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:04:31,672 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:31,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:31,677 INFO L85 PathProgramCache]: Analyzing trace with hash 653480561, now seen corresponding path program 1 times [2024-11-24 01:04:31,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:31,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546353859] [2024-11-24 01:04:31,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:31,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:31,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:31,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546353859] [2024-11-24 01:04:31,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546353859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:31,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:31,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:04:31,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672114563] [2024-11-24 01:04:31,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:31,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:04:31,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:32,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:04:32,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:32,000 INFO L87 Difference]: Start difference. First operand 835 states and 1546 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2024-11-24 01:04:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:32,372 INFO L93 Difference]: Finished difference Result 1275 states and 2246 transitions. [2024-11-24 01:04:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:04:32,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2024-11-24 01:04:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:32,378 INFO L225 Difference]: With dead ends: 1275 [2024-11-24 01:04:32,378 INFO L226 Difference]: Without dead ends: 1231 [2024-11-24 01:04:32,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:04:32,380 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:32,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:04:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-24 01:04:32,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 877. [2024-11-24 01:04:32,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 875 states have (on average 1.8434285714285714) internal successors, (1613), 876 states have internal predecessors, (1613), 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) [2024-11-24 01:04:32,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1613 transitions. [2024-11-24 01:04:32,411 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1613 transitions. Word has length 54 [2024-11-24 01:04:32,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:32,412 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1613 transitions. [2024-11-24 01:04:32,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2024-11-24 01:04:32,412 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1613 transitions. [2024-11-24 01:04:32,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 01:04:32,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:32,413 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] [2024-11-24 01:04:32,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:04:32,414 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:32,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:32,414 INFO L85 PathProgramCache]: Analyzing trace with hash -486102655, now seen corresponding path program 1 times [2024-11-24 01:04:32,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:32,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044033855] [2024-11-24 01:04:32,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:32,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:32,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044033855] [2024-11-24 01:04:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044033855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:32,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:32,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766017873] [2024-11-24 01:04:32,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:32,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:32,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:32,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:32,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:32,576 INFO L87 Difference]: Start difference. First operand 877 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 01:04:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:32,634 INFO L93 Difference]: Finished difference Result 1038 states and 1868 transitions. [2024-11-24 01:04:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:32,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-11-24 01:04:32,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:32,640 INFO L225 Difference]: With dead ends: 1038 [2024-11-24 01:04:32,640 INFO L226 Difference]: Without dead ends: 952 [2024-11-24 01:04:32,641 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 [2024-11-24 01:04:32,643 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:32,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:32,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-24 01:04:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 948. [2024-11-24 01:04:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8213530655391121) internal successors, (1723), 947 states have internal predecessors, (1723), 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) [2024-11-24 01:04:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1723 transitions. [2024-11-24 01:04:32,679 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1723 transitions. Word has length 56 [2024-11-24 01:04:32,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:32,681 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1723 transitions. [2024-11-24 01:04:32,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 01:04:32,681 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1723 transitions. [2024-11-24 01:04:32,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 01:04:32,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:32,686 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] [2024-11-24 01:04:32,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:04:32,686 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:32,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash -419609143, now seen corresponding path program 1 times [2024-11-24 01:04:32,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:32,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532628147] [2024-11-24 01:04:32,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:32,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:33,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:33,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532628147] [2024-11-24 01:04:33,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532628147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:33,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:33,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:04:33,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140437868] [2024-11-24 01:04:33,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:33,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:04:33,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:33,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:04:33,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:33,169 INFO L87 Difference]: Start difference. First operand 948 states and 1723 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-24 01:04:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:33,424 INFO L93 Difference]: Finished difference Result 1107 states and 1971 transitions. [2024-11-24 01:04:33,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:04:33,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2024-11-24 01:04:33,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:33,430 INFO L225 Difference]: With dead ends: 1107 [2024-11-24 01:04:33,430 INFO L226 Difference]: Without dead ends: 950 [2024-11-24 01:04:33,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:04:33,434 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 3000 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:33,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 1813 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:33,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-24 01:04:33,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2024-11-24 01:04:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8192389006342495) internal successors, (1721), 947 states have internal predecessors, (1721), 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) [2024-11-24 01:04:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1721 transitions. [2024-11-24 01:04:33,468 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1721 transitions. Word has length 56 [2024-11-24 01:04:33,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:33,468 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1721 transitions. [2024-11-24 01:04:33,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-24 01:04:33,469 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1721 transitions. [2024-11-24 01:04:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 01:04:33,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:33,472 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] [2024-11-24 01:04:33,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:04:33,473 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:33,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:33,474 INFO L85 PathProgramCache]: Analyzing trace with hash -537704617, now seen corresponding path program 1 times [2024-11-24 01:04:33,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:33,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292504411] [2024-11-24 01:04:33,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:33,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:33,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292504411] [2024-11-24 01:04:33,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292504411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:33,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:33,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:04:33,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631036336] [2024-11-24 01:04:33,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:33,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:04:33,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:33,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:04:33,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:04:33,899 INFO L87 Difference]: Start difference. First operand 948 states and 1721 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2024-11-24 01:04:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:34,001 INFO L93 Difference]: Finished difference Result 956 states and 1730 transitions. [2024-11-24 01:04:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:04:34,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2024-11-24 01:04:34,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:34,012 INFO L225 Difference]: With dead ends: 956 [2024-11-24 01:04:34,012 INFO L226 Difference]: Without dead ends: 954 [2024-11-24 01:04:34,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:04:34,013 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:34,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-24 01:04:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2024-11-24 01:04:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 952 states have (on average 1.8130252100840336) internal successors, (1726), 953 states have internal predecessors, (1726), 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) [2024-11-24 01:04:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1726 transitions. [2024-11-24 01:04:34,046 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1726 transitions. Word has length 57 [2024-11-24 01:04:34,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:34,046 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1726 transitions. [2024-11-24 01:04:34,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2024-11-24 01:04:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1726 transitions. [2024-11-24 01:04:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:04:34,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:34,048 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] [2024-11-24 01:04:34,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:04:34,048 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:34,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:34,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1148329065, now seen corresponding path program 1 times [2024-11-24 01:04:34,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:34,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947775239] [2024-11-24 01:04:34,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:34,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:34,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:34,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947775239] [2024-11-24 01:04:34,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947775239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:34,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:34,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:34,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363590017] [2024-11-24 01:04:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:34,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:34,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:34,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:34,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:34,129 INFO L87 Difference]: Start difference. First operand 954 states and 1726 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:34,165 INFO L93 Difference]: Finished difference Result 1264 states and 2198 transitions. [2024-11-24 01:04:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:34,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:04:34,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:34,171 INFO L225 Difference]: With dead ends: 1264 [2024-11-24 01:04:34,171 INFO L226 Difference]: Without dead ends: 1101 [2024-11-24 01:04:34,172 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 [2024-11-24 01:04:34,172 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:34,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:34,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-24 01:04:34,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2024-11-24 01:04:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1097 states have (on average 1.7711941659070192) internal successors, (1943), 1098 states have internal predecessors, (1943), 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) [2024-11-24 01:04:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1943 transitions. [2024-11-24 01:04:34,205 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1943 transitions. Word has length 58 [2024-11-24 01:04:34,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:34,206 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1943 transitions. [2024-11-24 01:04:34,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1943 transitions. [2024-11-24 01:04:34,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:04:34,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:34,207 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] [2024-11-24 01:04:34,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:04:34,207 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:34,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376215, now seen corresponding path program 1 times [2024-11-24 01:04:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128725575] [2024-11-24 01:04:34,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:34,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:34,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:34,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128725575] [2024-11-24 01:04:34,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128725575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:34,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:34,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:34,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161019593] [2024-11-24 01:04:34,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:34,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:34,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:34,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:34,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:34,279 INFO L87 Difference]: Start difference. First operand 1099 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:34,322 INFO L93 Difference]: Finished difference Result 1683 states and 2821 transitions. [2024-11-24 01:04:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:34,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:04:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:34,329 INFO L225 Difference]: With dead ends: 1683 [2024-11-24 01:04:34,329 INFO L226 Difference]: Without dead ends: 1375 [2024-11-24 01:04:34,330 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 [2024-11-24 01:04:34,330 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:34,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-24 01:04:34,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2024-11-24 01:04:34,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1371 states have (on average 1.7104303428154632) internal successors, (2345), 1372 states have internal predecessors, (2345), 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) [2024-11-24 01:04:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2345 transitions. [2024-11-24 01:04:34,371 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2345 transitions. Word has length 58 [2024-11-24 01:04:34,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:34,371 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2345 transitions. [2024-11-24 01:04:34,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2345 transitions. [2024-11-24 01:04:34,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:04:34,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:34,372 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] [2024-11-24 01:04:34,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:04:34,373 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:34,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:34,373 INFO L85 PathProgramCache]: Analyzing trace with hash 171122281, now seen corresponding path program 1 times [2024-11-24 01:04:34,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:34,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551574291] [2024-11-24 01:04:34,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:34,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:34,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551574291] [2024-11-24 01:04:34,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551574291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:34,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:34,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:34,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836188979] [2024-11-24 01:04:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:34,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:34,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:34,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:34,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:34,441 INFO L87 Difference]: Start difference. First operand 1373 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:34,491 INFO L93 Difference]: Finished difference Result 2473 states and 3971 transitions. [2024-11-24 01:04:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:34,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:04:34,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:34,499 INFO L225 Difference]: With dead ends: 2473 [2024-11-24 01:04:34,500 INFO L226 Difference]: Without dead ends: 1891 [2024-11-24 01:04:34,501 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 [2024-11-24 01:04:34,501 INFO L435 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:34,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-11-24 01:04:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889. [2024-11-24 01:04:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1887 states have (on average 1.634870164281929) internal successors, (3085), 1888 states have internal predecessors, (3085), 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) [2024-11-24 01:04:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 3085 transitions. [2024-11-24 01:04:34,614 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 3085 transitions. Word has length 58 [2024-11-24 01:04:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:34,614 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 3085 transitions. [2024-11-24 01:04:34,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 3085 transitions. [2024-11-24 01:04:34,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:04:34,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:34,615 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] [2024-11-24 01:04:34,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:04:34,616 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:34,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:34,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1952055145, now seen corresponding path program 1 times [2024-11-24 01:04:34,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:34,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173098772] [2024-11-24 01:04:34,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:34,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:34,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:34,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173098772] [2024-11-24 01:04:34,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173098772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:34,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:34,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:34,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808763522] [2024-11-24 01:04:34,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:34,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:34,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:34,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:34,686 INFO L87 Difference]: Start difference. First operand 1889 states and 3085 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:34,762 INFO L93 Difference]: Finished difference Result 3957 states and 6079 transitions. [2024-11-24 01:04:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:34,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:04:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:34,775 INFO L225 Difference]: With dead ends: 3957 [2024-11-24 01:04:34,775 INFO L226 Difference]: Without dead ends: 2859 [2024-11-24 01:04:34,777 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 [2024-11-24 01:04:34,778 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:34,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:34,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2024-11-24 01:04:34,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2857. [2024-11-24 01:04:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2855 states have (on average 1.5541155866900176) internal successors, (4437), 2856 states have internal predecessors, (4437), 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) [2024-11-24 01:04:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4437 transitions. [2024-11-24 01:04:34,871 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4437 transitions. Word has length 58 [2024-11-24 01:04:34,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:34,871 INFO L471 AbstractCegarLoop]: Abstraction has 2857 states and 4437 transitions. [2024-11-24 01:04:34,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-24 01:04:34,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4437 transitions. [2024-11-24 01:04:34,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 01:04:34,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:34,872 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] [2024-11-24 01:04:34,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:04:34,872 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:34,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:34,873 INFO L85 PathProgramCache]: Analyzing trace with hash -783970460, now seen corresponding path program 1 times [2024-11-24 01:04:34,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:34,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342429605] [2024-11-24 01:04:34,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:34,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:34,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:34,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342429605] [2024-11-24 01:04:34,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342429605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:34,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:34,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:34,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398561561] [2024-11-24 01:04:34,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:34,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:34,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:34,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:34,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:34,941 INFO L87 Difference]: Start difference. First operand 2857 states and 4437 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-24 01:04:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:35,029 INFO L93 Difference]: Finished difference Result 5040 states and 7611 transitions. [2024-11-24 01:04:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:35,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2024-11-24 01:04:35,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:35,044 INFO L225 Difference]: With dead ends: 5040 [2024-11-24 01:04:35,044 INFO L226 Difference]: Without dead ends: 3853 [2024-11-24 01:04:35,046 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 [2024-11-24 01:04:35,047 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:35,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2024-11-24 01:04:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3851. [2024-11-24 01:04:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.5149389451805664) internal successors, (5831), 3850 states have internal predecessors, (5831), 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) [2024-11-24 01:04:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5831 transitions. [2024-11-24 01:04:35,176 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5831 transitions. Word has length 60 [2024-11-24 01:04:35,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:35,177 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5831 transitions. [2024-11-24 01:04:35,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-24 01:04:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5831 transitions. [2024-11-24 01:04:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 01:04:35,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:35,178 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] [2024-11-24 01:04:35,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:04:35,178 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:35,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:35,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1892219703, now seen corresponding path program 1 times [2024-11-24 01:04:35,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:35,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844275386] [2024-11-24 01:04:35,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:35,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:35,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:35,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844275386] [2024-11-24 01:04:35,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844275386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:35,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:35,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:35,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104619277] [2024-11-24 01:04:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:35,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:04:35,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:35,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:04:35,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:04:35,342 INFO L87 Difference]: Start difference. First operand 3851 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-24 01:04:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:43,270 INFO L93 Difference]: Finished difference Result 6106 states and 10140 transitions. [2024-11-24 01:04:43,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:04:43,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2024-11-24 01:04:43,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:43,288 INFO L225 Difference]: With dead ends: 6106 [2024-11-24 01:04:43,288 INFO L226 Difference]: Without dead ends: 5353 [2024-11-24 01:04:43,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:04:43,291 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 2405 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:43,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 800 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-24 01:04:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-11-24 01:04:43,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5353. [2024-11-24 01:04:43,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5351 states have (on average 1.4847692020183143) internal successors, (7945), 5352 states have internal predecessors, (7945), 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) [2024-11-24 01:04:43,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 7945 transitions. [2024-11-24 01:04:43,488 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 7945 transitions. Word has length 61 [2024-11-24 01:04:43,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:43,488 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 7945 transitions. [2024-11-24 01:04:43,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-24 01:04:43,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 7945 transitions. [2024-11-24 01:04:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:04:43,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:43,494 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:43,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:04:43,494 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:43,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:43,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2113574007, now seen corresponding path program 1 times [2024-11-24 01:04:43,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:43,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030609318] [2024-11-24 01:04:43,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:43,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:04:43,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:43,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030609318] [2024-11-24 01:04:43,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030609318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:43,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:43,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:04:43,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321344283] [2024-11-24 01:04:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:43,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:04:43,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:43,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:04:43,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:43,738 INFO L87 Difference]: Start difference. First operand 5353 states and 7945 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-11-24 01:04:44,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:44,196 INFO L93 Difference]: Finished difference Result 21301 states and 30607 transitions. [2024-11-24 01:04:44,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:04:44,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 77 [2024-11-24 01:04:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:44,265 INFO L225 Difference]: With dead ends: 21301 [2024-11-24 01:04:44,265 INFO L226 Difference]: Without dead ends: 18243 [2024-11-24 01:04:44,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:04:44,274 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 6332 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:44,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 3636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18243 states. [2024-11-24 01:04:44,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18243 to 8409. [2024-11-24 01:04:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8407 states have (on average 1.4570001189484953) internal successors, (12249), 8408 states have internal predecessors, (12249), 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) [2024-11-24 01:04:44,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 12249 transitions. [2024-11-24 01:04:44,705 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 12249 transitions. Word has length 77 [2024-11-24 01:04:44,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:44,705 INFO L471 AbstractCegarLoop]: Abstraction has 8409 states and 12249 transitions. [2024-11-24 01:04:44,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-11-24 01:04:44,706 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 12249 transitions. [2024-11-24 01:04:44,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:04:44,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:44,708 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:44,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:04:44,709 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:44,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:44,709 INFO L85 PathProgramCache]: Analyzing trace with hash -875311991, now seen corresponding path program 1 times [2024-11-24 01:04:44,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:44,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414613248] [2024-11-24 01:04:44,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:44,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:44,916 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 01:04:44,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:44,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414613248] [2024-11-24 01:04:44,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414613248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:44,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:44,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:04:44,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592559085] [2024-11-24 01:04:44,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:44,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:04:44,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:44,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:04:44,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:44,918 INFO L87 Difference]: Start difference. First operand 8409 states and 12249 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) [2024-11-24 01:04:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:45,505 INFO L93 Difference]: Finished difference Result 24357 states and 34911 transitions. [2024-11-24 01:04:45,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:04:45,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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 77 [2024-11-24 01:04:45,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:45,558 INFO L225 Difference]: With dead ends: 24357 [2024-11-24 01:04:45,558 INFO L226 Difference]: Without dead ends: 21299 [2024-11-24 01:04:45,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:04:45,567 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 6353 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:45,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3580 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21299 states. [2024-11-24 01:04:46,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21299 to 13001. [2024-11-24 01:04:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13001 states, 12999 states have (on average 1.4358796830525424) internal successors, (18665), 13000 states have internal predecessors, (18665), 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) [2024-11-24 01:04:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13001 states to 13001 states and 18665 transitions. [2024-11-24 01:04:46,159 INFO L78 Accepts]: Start accepts. Automaton has 13001 states and 18665 transitions. Word has length 77 [2024-11-24 01:04:46,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:46,161 INFO L471 AbstractCegarLoop]: Abstraction has 13001 states and 18665 transitions. [2024-11-24 01:04:46,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) [2024-11-24 01:04:46,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13001 states and 18665 transitions. [2024-11-24 01:04:46,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:04:46,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:46,165 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:46,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:04:46,165 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:46,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:46,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1204186505, now seen corresponding path program 1 times [2024-11-24 01:04:46,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:46,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286014185] [2024-11-24 01:04:46,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:04:46,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:46,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286014185] [2024-11-24 01:04:46,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286014185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:46,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:46,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:04:46,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483542757] [2024-11-24 01:04:46,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:46,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:04:46,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:46,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:04:46,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:46,376 INFO L87 Difference]: Start difference. First operand 13001 states and 18665 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-11-24 01:04:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:47,022 INFO L93 Difference]: Finished difference Result 27413 states and 39215 transitions. [2024-11-24 01:04:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:04:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 77 [2024-11-24 01:04:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:47,080 INFO L225 Difference]: With dead ends: 27413 [2024-11-24 01:04:47,081 INFO L226 Difference]: Without dead ends: 24355 [2024-11-24 01:04:47,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:04:47,095 INFO L435 NwaCegarLoop]: 1607 mSDtfsCounter, 6394 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:47,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 3561 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:47,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2024-11-24 01:04:47,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 16057. [2024-11-24 01:04:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16057 states, 16055 states have (on average 1.43064465898474) internal successors, (22969), 16056 states have internal predecessors, (22969), 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) [2024-11-24 01:04:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16057 states to 16057 states and 22969 transitions. [2024-11-24 01:04:47,674 INFO L78 Accepts]: Start accepts. Automaton has 16057 states and 22969 transitions. Word has length 77 [2024-11-24 01:04:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:47,675 INFO L471 AbstractCegarLoop]: Abstraction has 16057 states and 22969 transitions. [2024-11-24 01:04:47,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-11-24 01:04:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand 16057 states and 22969 transitions. [2024-11-24 01:04:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:04:47,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:47,678 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:47,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:04:47,678 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:47,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:47,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1309847927, now seen corresponding path program 1 times [2024-11-24 01:04:47,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:47,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72332421] [2024-11-24 01:04:47,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:47,882 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 01:04:47,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:47,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72332421] [2024-11-24 01:04:47,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72332421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:47,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:47,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:04:47,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996182144] [2024-11-24 01:04:47,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:47,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:04:47,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:47,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:04:47,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:47,885 INFO L87 Difference]: Start difference. First operand 16057 states and 22969 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2024-11-24 01:04:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:48,545 INFO L93 Difference]: Finished difference Result 30469 states and 43519 transitions. [2024-11-24 01:04:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:04:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 77 [2024-11-24 01:04:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:48,608 INFO L225 Difference]: With dead ends: 30469 [2024-11-24 01:04:48,608 INFO L226 Difference]: Without dead ends: 27411 [2024-11-24 01:04:48,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:04:48,619 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 6347 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6347 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:48,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6347 Valid, 3595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:48,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27411 states. [2024-11-24 01:04:49,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27411 to 19113. [2024-11-24 01:04:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19113 states, 19111 states have (on average 1.4270838783946418) internal successors, (27273), 19112 states have internal predecessors, (27273), 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) [2024-11-24 01:04:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19113 states to 19113 states and 27273 transitions. [2024-11-24 01:04:49,525 INFO L78 Accepts]: Start accepts. Automaton has 19113 states and 27273 transitions. Word has length 77 [2024-11-24 01:04:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:49,526 INFO L471 AbstractCegarLoop]: Abstraction has 19113 states and 27273 transitions. [2024-11-24 01:04:49,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2024-11-24 01:04:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 19113 states and 27273 transitions. [2024-11-24 01:04:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 01:04:49,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:49,530 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:49,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:04:49,530 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:49,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:49,531 INFO L85 PathProgramCache]: Analyzing trace with hash -974292767, now seen corresponding path program 1 times [2024-11-24 01:04:49,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:49,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768910816] [2024-11-24 01:04:49,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:49,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:49,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:49,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768910816] [2024-11-24 01:04:49,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768910816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:49,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:49,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:49,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242185902] [2024-11-24 01:04:49,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:49,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:49,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:49,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:49,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:49,707 INFO L87 Difference]: Start difference. First operand 19113 states and 27273 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-24 01:04:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:50,158 INFO L93 Difference]: Finished difference Result 31105 states and 44368 transitions. [2024-11-24 01:04:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:50,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2024-11-24 01:04:50,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:50,183 INFO L225 Difference]: With dead ends: 31105 [2024-11-24 01:04:50,183 INFO L226 Difference]: Without dead ends: 14287 [2024-11-24 01:04:50,198 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 [2024-11-24 01:04:50,199 INFO L435 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:50,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:50,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14287 states. [2024-11-24 01:04:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14287 to 14285. [2024-11-24 01:04:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14285 states, 14283 states have (on average 1.4359028215360918) internal successors, (20509), 14284 states have internal predecessors, (20509), 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) [2024-11-24 01:04:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14285 states to 14285 states and 20509 transitions. [2024-11-24 01:04:50,695 INFO L78 Accepts]: Start accepts. Automaton has 14285 states and 20509 transitions. Word has length 79 [2024-11-24 01:04:50,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:50,695 INFO L471 AbstractCegarLoop]: Abstraction has 14285 states and 20509 transitions. [2024-11-24 01:04:50,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-24 01:04:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand 14285 states and 20509 transitions. [2024-11-24 01:04:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 01:04:50,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:50,700 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:50,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:04:50,700 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:50,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:50,700 INFO L85 PathProgramCache]: Analyzing trace with hash -146696572, now seen corresponding path program 1 times [2024-11-24 01:04:50,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:50,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909371557] [2024-11-24 01:04:50,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:50,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:50,881 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:04:50,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:50,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909371557] [2024-11-24 01:04:50,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909371557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:50,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:50,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:04:50,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581895094] [2024-11-24 01:04:50,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:50,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:04:50,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:50,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:04:50,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:50,884 INFO L87 Difference]: Start difference. First operand 14285 states and 20509 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-11-24 01:04:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:51,488 INFO L93 Difference]: Finished difference Result 25177 states and 36035 transitions. [2024-11-24 01:04:51,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:04:51,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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 79 [2024-11-24 01:04:51,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:51,522 INFO L225 Difference]: With dead ends: 25177 [2024-11-24 01:04:51,523 INFO L226 Difference]: Without dead ends: 22999 [2024-11-24 01:04:51,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:04:51,532 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 6335 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:51,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 3725 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22999 states. [2024-11-24 01:04:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22999 to 16461. [2024-11-24 01:04:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16461 states, 16459 states have (on average 1.432711586366122) internal successors, (23581), 16460 states have internal predecessors, (23581), 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) [2024-11-24 01:04:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16461 states to 16461 states and 23581 transitions. [2024-11-24 01:04:52,219 INFO L78 Accepts]: Start accepts. Automaton has 16461 states and 23581 transitions. Word has length 79 [2024-11-24 01:04:52,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:52,219 INFO L471 AbstractCegarLoop]: Abstraction has 16461 states and 23581 transitions. [2024-11-24 01:04:52,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-11-24 01:04:52,220 INFO L276 IsEmpty]: Start isEmpty. Operand 16461 states and 23581 transitions. [2024-11-24 01:04:52,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-24 01:04:52,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:52,222 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:52,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:04:52,223 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:52,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:52,223 INFO L85 PathProgramCache]: Analyzing trace with hash 762759661, now seen corresponding path program 1 times [2024-11-24 01:04:52,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:52,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629600614] [2024-11-24 01:04:52,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:52,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:52,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:52,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629600614] [2024-11-24 01:04:52,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629600614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:52,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:52,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:52,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329840125] [2024-11-24 01:04:52,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:52,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:52,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:52,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:52,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:52,351 INFO L87 Difference]: Start difference. First operand 16461 states and 23581 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-24 01:04:52,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:52,562 INFO L93 Difference]: Finished difference Result 23537 states and 33567 transitions. [2024-11-24 01:04:52,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:52,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2024-11-24 01:04:52,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:52,576 INFO L225 Difference]: With dead ends: 23537 [2024-11-24 01:04:52,576 INFO L226 Difference]: Without dead ends: 9391 [2024-11-24 01:04:52,586 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 [2024-11-24 01:04:52,586 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:52,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:52,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2024-11-24 01:04:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 9389. [2024-11-24 01:04:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9389 states, 9387 states have (on average 1.4374134441248536) internal successors, (13493), 9388 states have internal predecessors, (13493), 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) [2024-11-24 01:04:52,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9389 states to 9389 states and 13493 transitions. [2024-11-24 01:04:52,836 INFO L78 Accepts]: Start accepts. Automaton has 9389 states and 13493 transitions. Word has length 80 [2024-11-24 01:04:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:52,836 INFO L471 AbstractCegarLoop]: Abstraction has 9389 states and 13493 transitions. [2024-11-24 01:04:52,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-24 01:04:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 9389 states and 13493 transitions. [2024-11-24 01:04:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 01:04:52,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:52,838 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:52,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:04:52,839 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:52,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash -154885185, now seen corresponding path program 1 times [2024-11-24 01:04:52,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:52,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820601955] [2024-11-24 01:04:52,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:52,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:52,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820601955] [2024-11-24 01:04:52,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820601955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:52,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:52,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:52,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819632909] [2024-11-24 01:04:52,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:52,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:52,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:52,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:52,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:52,961 INFO L87 Difference]: Start difference. First operand 9389 states and 13493 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-24 01:04:53,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:53,079 INFO L93 Difference]: Finished difference Result 12929 states and 18435 transitions. [2024-11-24 01:04:53,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:53,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-11-24 01:04:53,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:53,087 INFO L225 Difference]: With dead ends: 12929 [2024-11-24 01:04:53,087 INFO L226 Difference]: Without dead ends: 5855 [2024-11-24 01:04:53,093 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 [2024-11-24 01:04:53,095 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:53,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2024-11-24 01:04:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5853. [2024-11-24 01:04:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 5851 states have (on average 1.4529140317894378) internal successors, (8501), 5852 states have internal predecessors, (8501), 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) [2024-11-24 01:04:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 8501 transitions. [2024-11-24 01:04:53,242 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 8501 transitions. Word has length 82 [2024-11-24 01:04:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:53,242 INFO L471 AbstractCegarLoop]: Abstraction has 5853 states and 8501 transitions. [2024-11-24 01:04:53,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-24 01:04:53,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 8501 transitions. [2024-11-24 01:04:53,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:04:53,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:53,244 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:53,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:04:53,247 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:53,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:53,249 INFO L85 PathProgramCache]: Analyzing trace with hash 673860625, now seen corresponding path program 1 times [2024-11-24 01:04:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:53,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855706846] [2024-11-24 01:04:53,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:53,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:53,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:53,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855706846] [2024-11-24 01:04:53,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855706846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:53,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:53,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:53,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608106628] [2024-11-24 01:04:53,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:53,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:53,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:53,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:53,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:53,414 INFO L87 Difference]: Start difference. First operand 5853 states and 8501 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-24 01:04:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:53,492 INFO L93 Difference]: Finished difference Result 7625 states and 10947 transitions. [2024-11-24 01:04:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2024-11-24 01:04:53,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:53,500 INFO L225 Difference]: With dead ends: 7625 [2024-11-24 01:04:53,501 INFO L226 Difference]: Without dead ends: 4087 [2024-11-24 01:04:53,504 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 [2024-11-24 01:04:53,507 INFO L435 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:53,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2024-11-24 01:04:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4085. [2024-11-24 01:04:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4083 states have (on average 1.4771001714425667) internal successors, (6031), 4084 states have internal predecessors, (6031), 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) [2024-11-24 01:04:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 6031 transitions. [2024-11-24 01:04:53,601 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 6031 transitions. Word has length 84 [2024-11-24 01:04:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:53,601 INFO L471 AbstractCegarLoop]: Abstraction has 4085 states and 6031 transitions. [2024-11-24 01:04:53,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-24 01:04:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 6031 transitions. [2024-11-24 01:04:53,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:04:53,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:53,604 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:53,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:04:53,604 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:53,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:53,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1584456419, now seen corresponding path program 1 times [2024-11-24 01:04:53,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:53,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793353711] [2024-11-24 01:04:53,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:53,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:53,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:53,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793353711] [2024-11-24 01:04:53,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793353711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:53,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:53,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:53,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269524954] [2024-11-24 01:04:53,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:53,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:53,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:53,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:53,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:53,718 INFO L87 Difference]: Start difference. First operand 4085 states and 6031 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-24 01:04:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:53,768 INFO L93 Difference]: Finished difference Result 4973 states and 7242 transitions. [2024-11-24 01:04:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:53,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-11-24 01:04:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:53,776 INFO L225 Difference]: With dead ends: 4973 [2024-11-24 01:04:53,776 INFO L226 Difference]: Without dead ends: 3203 [2024-11-24 01:04:53,779 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 [2024-11-24 01:04:53,781 INFO L435 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:53,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:53,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-11-24 01:04:53,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3201. [2024-11-24 01:04:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3199 states have (on average 1.5032822757111597) internal successors, (4809), 3200 states have internal predecessors, (4809), 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) [2024-11-24 01:04:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4809 transitions. [2024-11-24 01:04:53,847 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4809 transitions. Word has length 86 [2024-11-24 01:04:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:53,847 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4809 transitions. [2024-11-24 01:04:53,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-24 01:04:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4809 transitions. [2024-11-24 01:04:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 01:04:53,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:53,849 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:53,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:04:53,849 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:53,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:53,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1438021579, now seen corresponding path program 1 times [2024-11-24 01:04:53,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:53,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63027521] [2024-11-24 01:04:53,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:53,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:54,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63027521] [2024-11-24 01:04:54,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63027521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319993873] [2024-11-24 01:04:54,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:54,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:54,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:54,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:54,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:04:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:55,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:04:55,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:55,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:04:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:57,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319993873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:04:57,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:04:57,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-24 01:04:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317227749] [2024-11-24 01:04:57,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:04:57,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 01:04:57,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:57,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 01:04:57,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:04:57,280 INFO L87 Difference]: Start difference. First operand 3201 states and 4809 transitions. Second operand has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 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) [2024-11-24 01:04:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:59,615 INFO L93 Difference]: Finished difference Result 6959 states and 9873 transitions. [2024-11-24 01:04:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 01:04:59,616 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-24 01:04:59,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:59,624 INFO L225 Difference]: With dead ends: 6959 [2024-11-24 01:04:59,624 INFO L226 Difference]: Without dead ends: 6073 [2024-11-24 01:04:59,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2024-11-24 01:04:59,628 INFO L435 NwaCegarLoop]: 1502 mSDtfsCounter, 18843 mSDsluCounter, 4977 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18843 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:59,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18843 Valid, 6479 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:04:59,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2024-11-24 01:04:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 6035. [2024-11-24 01:04:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6035 states, 6033 states have (on average 1.424167081054202) internal successors, (8592), 6034 states have internal predecessors, (8592), 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) [2024-11-24 01:04:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6035 states to 6035 states and 8592 transitions. [2024-11-24 01:04:59,843 INFO L78 Accepts]: Start accepts. Automaton has 6035 states and 8592 transitions. Word has length 88 [2024-11-24 01:04:59,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:59,844 INFO L471 AbstractCegarLoop]: Abstraction has 6035 states and 8592 transitions. [2024-11-24 01:04:59,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 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) [2024-11-24 01:04:59,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6035 states and 8592 transitions. [2024-11-24 01:04:59,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 01:04:59,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:59,847 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:04:59,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:05:00,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:00,048 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:00,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1982597732, now seen corresponding path program 1 times [2024-11-24 01:05:00,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:00,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372233647] [2024-11-24 01:05:00,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:00,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:00,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372233647] [2024-11-24 01:05:00,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372233647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:00,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294268376] [2024-11-24 01:05:00,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:00,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:00,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:00,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:00,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:05:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:00,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:05:00,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:01,065 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:05:01,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:05:01,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294268376] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:01,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:01,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2024-11-24 01:05:01,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542322014] [2024-11-24 01:05:01,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:01,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:05:01,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:01,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:05:01,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:05:01,317 INFO L87 Difference]: Start difference. First operand 6035 states and 8592 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 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) [2024-11-24 01:05:03,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:03,928 INFO L93 Difference]: Finished difference Result 20439 states and 27612 transitions. [2024-11-24 01:05:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-24 01:05:03,928 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-24 01:05:03,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:03,943 INFO L225 Difference]: With dead ends: 20439 [2024-11-24 01:05:03,943 INFO L226 Difference]: Without dead ends: 16719 [2024-11-24 01:05:03,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2024-11-24 01:05:03,950 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 11999 mSDsluCounter, 7984 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11999 SdHoareTripleChecker+Valid, 9530 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:03,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11999 Valid, 9530 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:05:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16719 states. [2024-11-24 01:05:04,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16719 to 16633. [2024-11-24 01:05:04,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16633 states, 16631 states have (on average 1.3067765017136672) internal successors, (21733), 16632 states have internal predecessors, (21733), 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) [2024-11-24 01:05:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16633 states to 16633 states and 21733 transitions. [2024-11-24 01:05:04,508 INFO L78 Accepts]: Start accepts. Automaton has 16633 states and 21733 transitions. Word has length 89 [2024-11-24 01:05:04,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:04,508 INFO L471 AbstractCegarLoop]: Abstraction has 16633 states and 21733 transitions. [2024-11-24 01:05:04,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 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) [2024-11-24 01:05:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 16633 states and 21733 transitions. [2024-11-24 01:05:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 01:05:04,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:04,510 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:05:04,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:05:04,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:04,710 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:04,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:04,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1775616186, now seen corresponding path program 1 times [2024-11-24 01:05:04,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:04,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119577372] [2024-11-24 01:05:04,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:04,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:05,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:05,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119577372] [2024-11-24 01:05:05,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119577372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:05,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282428413] [2024-11-24 01:05:05,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:05,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:05,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:05,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:05,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:05:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:05,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:05:05,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:05,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:05,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:07,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282428413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:07,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:07,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-24 01:05:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044570157] [2024-11-24 01:05:07,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:07,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 01:05:07,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:07,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 01:05:07,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:05:07,017 INFO L87 Difference]: Start difference. First operand 16633 states and 21733 transitions. Second operand has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 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) [2024-11-24 01:05:08,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:08,229 INFO L93 Difference]: Finished difference Result 45197 states and 58116 transitions. [2024-11-24 01:05:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:05:08,230 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-24 01:05:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:08,254 INFO L225 Difference]: With dead ends: 45197 [2024-11-24 01:05:08,254 INFO L226 Difference]: Without dead ends: 31510 [2024-11-24 01:05:08,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:05:08,264 INFO L435 NwaCegarLoop]: 1518 mSDtfsCounter, 10803 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10803 SdHoareTripleChecker+Valid, 4813 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:08,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10803 Valid, 4813 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:05:08,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31510 states. [2024-11-24 01:05:09,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31510 to 31138. [2024-11-24 01:05:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31138 states, 31136 states have (on average 1.2746017471736897) internal successors, (39686), 31137 states have internal predecessors, (39686), 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) [2024-11-24 01:05:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31138 states to 31138 states and 39686 transitions. [2024-11-24 01:05:09,187 INFO L78 Accepts]: Start accepts. Automaton has 31138 states and 39686 transitions. Word has length 89 [2024-11-24 01:05:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:09,187 INFO L471 AbstractCegarLoop]: Abstraction has 31138 states and 39686 transitions. [2024-11-24 01:05:09,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 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) [2024-11-24 01:05:09,187 INFO L276 IsEmpty]: Start isEmpty. Operand 31138 states and 39686 transitions. [2024-11-24 01:05:09,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 01:05:09,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:09,189 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:05:09,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:05:09,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 01:05:09,389 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:09,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:09,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2718711, now seen corresponding path program 1 times [2024-11-24 01:05:09,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:09,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223438115] [2024-11-24 01:05:09,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:09,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:09,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:09,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223438115] [2024-11-24 01:05:09,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223438115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:09,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560453970] [2024-11-24 01:05:09,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:09,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:09,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:09,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:09,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:05:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:09,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 01:05:09,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:10,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:11,875 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:11,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560453970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:11,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:11,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-24 01:05:11,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041190298] [2024-11-24 01:05:11,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:11,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:05:11,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:11,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:05:11,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:05:11,878 INFO L87 Difference]: Start difference. First operand 31138 states and 39686 transitions. Second operand has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 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) [2024-11-24 01:05:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:14,033 INFO L93 Difference]: Finished difference Result 85010 states and 107498 transitions. [2024-11-24 01:05:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:05:14,033 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 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 90 [2024-11-24 01:05:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:14,092 INFO L225 Difference]: With dead ends: 85010 [2024-11-24 01:05:14,092 INFO L226 Difference]: Without dead ends: 60753 [2024-11-24 01:05:14,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:05:14,112 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 10702 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10702 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:14,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10702 Valid, 6330 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:05:14,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60753 states. [2024-11-24 01:05:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60753 to 60013. [2024-11-24 01:05:15,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60013 states, 60011 states have (on average 1.2502374564663146) internal successors, (75028), 60012 states have internal predecessors, (75028), 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) [2024-11-24 01:05:15,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60013 states to 60013 states and 75028 transitions. [2024-11-24 01:05:15,945 INFO L78 Accepts]: Start accepts. Automaton has 60013 states and 75028 transitions. Word has length 90 [2024-11-24 01:05:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:15,945 INFO L471 AbstractCegarLoop]: Abstraction has 60013 states and 75028 transitions. [2024-11-24 01:05:15,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 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) [2024-11-24 01:05:15,946 INFO L276 IsEmpty]: Start isEmpty. Operand 60013 states and 75028 transitions. [2024-11-24 01:05:15,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 01:05:15,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:15,949 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:05:15,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:05:16,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:16,154 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:16,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:16,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1519319510, now seen corresponding path program 1 times [2024-11-24 01:05:16,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:16,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820710780] [2024-11-24 01:05:16,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:16,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:05:16,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:16,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820710780] [2024-11-24 01:05:16,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820710780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:16,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293020945] [2024-11-24 01:05:16,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:16,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:16,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:16,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:16,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:05:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:16,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-24 01:05:16,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:07:33,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:07:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:07:43,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293020945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:07:43,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:07:43,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 30] total 67 [2024-11-24 01:07:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327293965] [2024-11-24 01:07:43,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:07:43,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-24 01:07:43,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:07:43,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-24 01:07:43,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=742, Invalid=3680, Unknown=0, NotChecked=0, Total=4422 [2024-11-24 01:07:43,567 INFO L87 Difference]: Start difference. First operand 60013 states and 75028 transitions. Second operand has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 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) [2024-11-24 01:08:08,603 WARN L286 SmtUtils]: Spent 8.74s on a formula simplification. DAG size of input: 367 DAG size of output: 273 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:08:24,157 WARN L286 SmtUtils]: Spent 12.59s on a formula simplification. DAG size of input: 480 DAG size of output: 307 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:08:30,427 WARN L286 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 383 DAG size of output: 290 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:09:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:50,381 INFO L93 Difference]: Finished difference Result 135734 states and 169833 transitions. [2024-11-24 01:09:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-11-24 01:09:50,381 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 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 91 [2024-11-24 01:09:50,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:50,443 INFO L225 Difference]: With dead ends: 135734 [2024-11-24 01:09:50,443 INFO L226 Difference]: Without dead ends: 83097 [2024-11-24 01:09:50,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13306 ImplicationChecksByTransitivity, 138.9s TimeCoverageRelationStatistics Valid=7448, Invalid=31558, Unknown=0, NotChecked=0, Total=39006 [2024-11-24 01:09:50,472 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 15686 mSDsluCounter, 28267 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15686 SdHoareTripleChecker+Valid, 29824 SdHoareTripleChecker+Invalid, 3633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:50,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15686 Valid, 29824 Invalid, 3633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [133 Valid, 3500 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-24 01:09:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83097 states. [2024-11-24 01:09:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83097 to 67621. [2024-11-24 01:09:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67621 states, 67619 states have (on average 1.2452565107440217) internal successors, (84203), 67620 states have internal predecessors, (84203), 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) [2024-11-24 01:09:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67621 states to 67621 states and 84203 transitions. [2024-11-24 01:09:54,197 INFO L78 Accepts]: Start accepts. Automaton has 67621 states and 84203 transitions. Word has length 91 [2024-11-24 01:09:54,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:54,198 INFO L471 AbstractCegarLoop]: Abstraction has 67621 states and 84203 transitions. [2024-11-24 01:09:54,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 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) [2024-11-24 01:09:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 67621 states and 84203 transitions. [2024-11-24 01:09:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:09:54,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:54,202 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:09:54,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:09:54,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:54,406 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:54,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1473270273, now seen corresponding path program 1 times [2024-11-24 01:09:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408650640] [2024-11-24 01:09:54,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:09:58,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:58,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408650640] [2024-11-24 01:09:58,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408650640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:09:58,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719433938] [2024-11-24 01:09:58,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:58,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:58,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:58,792 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:09:58,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:09:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:58,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:09:58,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:00,058 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:10:00,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:10:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:10:01,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719433938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:10:01,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:10:01,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 13] total 51 [2024-11-24 01:10:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234940883] [2024-11-24 01:10:01,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:10:01,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-24 01:10:01,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:01,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-24 01:10:01,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2381, Unknown=0, NotChecked=0, Total=2550 [2024-11-24 01:10:01,751 INFO L87 Difference]: Start difference. First operand 67621 states and 84203 transitions. Second operand has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 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) [2024-11-24 01:10:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:42,112 INFO L93 Difference]: Finished difference Result 117008 states and 144993 transitions. [2024-11-24 01:10:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2024-11-24 01:10:42,113 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 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 92 [2024-11-24 01:10:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:42,264 INFO L225 Difference]: With dead ends: 117008 [2024-11-24 01:10:42,264 INFO L226 Difference]: Without dead ends: 92512 [2024-11-24 01:10:42,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16137 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=7913, Invalid=41149, Unknown=0, NotChecked=0, Total=49062 [2024-11-24 01:10:42,295 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 30650 mSDsluCounter, 33835 mSDsCounter, 0 mSdLazyCounter, 7785 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30650 SdHoareTripleChecker+Valid, 35516 SdHoareTripleChecker+Invalid, 7953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 7785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:42,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30650 Valid, 35516 Invalid, 7953 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [168 Valid, 7785 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-24 01:10:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92512 states. [2024-11-24 01:10:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92512 to 59795. [2024-11-24 01:10:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59795 states, 59793 states have (on average 1.2402789624203503) internal successors, (74160), 59794 states have internal predecessors, (74160), 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) [2024-11-24 01:10:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59795 states to 59795 states and 74160 transitions. [2024-11-24 01:10:47,472 INFO L78 Accepts]: Start accepts. Automaton has 59795 states and 74160 transitions. Word has length 92 [2024-11-24 01:10:47,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:47,473 INFO L471 AbstractCegarLoop]: Abstraction has 59795 states and 74160 transitions. [2024-11-24 01:10:47,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 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) [2024-11-24 01:10:47,473 INFO L276 IsEmpty]: Start isEmpty. Operand 59795 states and 74160 transitions. [2024-11-24 01:10:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:10:47,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:47,475 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:10:47,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:10:47,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-24 01:10:47,679 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:47,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:47,680 INFO L85 PathProgramCache]: Analyzing trace with hash -108097977, now seen corresponding path program 1 times [2024-11-24 01:10:47,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:47,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462934549] [2024-11-24 01:10:47,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:47,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:10:48,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:48,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462934549] [2024-11-24 01:10:48,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462934549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:48,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40917679] [2024-11-24 01:10:48,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:48,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:48,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:48,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:48,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:10:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:48,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:10:48,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:10:51,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:10:53,530 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:10:53,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40917679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:10:53,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:10:53,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 40 [2024-11-24 01:10:53,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801852178] [2024-11-24 01:10:53,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:10:53,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-24 01:10:53,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:53,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-24 01:10:53,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1368, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:10:53,532 INFO L87 Difference]: Start difference. First operand 59795 states and 74160 transitions. Second operand has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 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) [2024-11-24 01:11:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:12,833 INFO L93 Difference]: Finished difference Result 135971 states and 169333 transitions. [2024-11-24 01:11:12,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-24 01:11:12,833 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 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 92 [2024-11-24 01:11:12,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:12,947 INFO L225 Difference]: With dead ends: 135971 [2024-11-24 01:11:12,947 INFO L226 Difference]: Without dead ends: 106227 [2024-11-24 01:11:12,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4857 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=2854, Invalid=11426, Unknown=0, NotChecked=0, Total=14280 [2024-11-24 01:11:12,962 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 14854 mSDsluCounter, 16010 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14854 SdHoareTripleChecker+Valid, 17578 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:12,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14854 Valid, 17578 Invalid, 1767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [78 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:11:13,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106227 states. [2024-11-24 01:11:17,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106227 to 66289. [2024-11-24 01:11:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66289 states, 66287 states have (on average 1.24218926788058) internal successors, (82341), 66288 states have internal predecessors, (82341), 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) [2024-11-24 01:11:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66289 states to 66289 states and 82341 transitions. [2024-11-24 01:11:17,714 INFO L78 Accepts]: Start accepts. Automaton has 66289 states and 82341 transitions. Word has length 92 [2024-11-24 01:11:17,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:17,714 INFO L471 AbstractCegarLoop]: Abstraction has 66289 states and 82341 transitions. [2024-11-24 01:11:17,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 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) [2024-11-24 01:11:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 66289 states and 82341 transitions. [2024-11-24 01:11:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 01:11:17,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:17,716 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:11:17,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:11:17,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-24 01:11:17,916 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:17,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:17,917 INFO L85 PathProgramCache]: Analyzing trace with hash 640907252, now seen corresponding path program 1 times [2024-11-24 01:11:17,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:17,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997502740] [2024-11-24 01:11:17,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:17,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:11:22,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:22,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997502740] [2024-11-24 01:11:22,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997502740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:11:22,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059929455] [2024-11-24 01:11:22,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:22,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:11:22,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:11:22,475 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:11:22,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:11:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:22,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-24 01:11:22,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:11:31,490 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:11:31,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:11:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:11:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059929455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:11:42,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:11:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 29] total 87 [2024-11-24 01:11:42,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003637883] [2024-11-24 01:11:42,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:11:42,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2024-11-24 01:11:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:42,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2024-11-24 01:11:42,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=958, Invalid=6524, Unknown=0, NotChecked=0, Total=7482 [2024-11-24 01:11:42,822 INFO L87 Difference]: Start difference. First operand 66289 states and 82341 transitions. Second operand has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 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) [2024-11-24 01:14:24,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:24,032 INFO L93 Difference]: Finished difference Result 183979 states and 226146 transitions. [2024-11-24 01:14:24,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2024-11-24 01:14:24,034 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 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 93 [2024-11-24 01:14:24,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:24,544 INFO L225 Difference]: With dead ends: 183979 [2024-11-24 01:14:24,545 INFO L226 Difference]: Without dead ends: 152932 [2024-11-24 01:14:24,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 392 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60576 ImplicationChecksByTransitivity, 139.8s TimeCoverageRelationStatistics Valid=21633, Invalid=133209, Unknown=0, NotChecked=0, Total=154842 [2024-11-24 01:14:24,634 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 40270 mSDsluCounter, 33040 mSDsCounter, 0 mSdLazyCounter, 13091 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40270 SdHoareTripleChecker+Valid, 34709 SdHoareTripleChecker+Invalid, 13417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 13091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:24,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40270 Valid, 34709 Invalid, 13417 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [326 Valid, 13091 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2024-11-24 01:14:24,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152932 states. [2024-11-24 01:14:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152932 to 52271. [2024-11-24 01:14:31,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52271 states, 52269 states have (on average 1.2525588781113088) internal successors, (65470), 52270 states have internal predecessors, (65470), 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) [2024-11-24 01:14:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52271 states to 52271 states and 65470 transitions. [2024-11-24 01:14:31,575 INFO L78 Accepts]: Start accepts. Automaton has 52271 states and 65470 transitions. Word has length 93 [2024-11-24 01:14:31,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:31,579 INFO L471 AbstractCegarLoop]: Abstraction has 52271 states and 65470 transitions. [2024-11-24 01:14:31,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 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) [2024-11-24 01:14:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 52271 states and 65470 transitions. [2024-11-24 01:14:31,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 01:14:31,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:31,599 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:31,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:14:31,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:31,801 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:31,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash -456351275, now seen corresponding path program 1 times [2024-11-24 01:14:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:31,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566599714] [2024-11-24 01:14:31,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:31,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:14:32,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:32,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566599714] [2024-11-24 01:14:32,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566599714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:32,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:32,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:14:32,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430267840] [2024-11-24 01:14:32,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:32,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:14:32,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:32,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:14:32,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:32,706 INFO L87 Difference]: Start difference. First operand 52271 states and 65470 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-11-24 01:14:46,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:46,021 INFO L93 Difference]: Finished difference Result 56065 states and 71833 transitions. [2024-11-24 01:14:46,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:14:46,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132 [2024-11-24 01:14:46,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:46,107 INFO L225 Difference]: With dead ends: 56065 [2024-11-24 01:14:46,108 INFO L226 Difference]: Without dead ends: 53773 [2024-11-24 01:14:46,117 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 [2024-11-24 01:14:46,119 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 794 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:46,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 906 Invalid, 4443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-24 01:14:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53773 states. [2024-11-24 01:14:50,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53773 to 53022. [2024-11-24 01:14:50,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53022 states, 53020 states have (on average 1.2490192380233873) internal successors, (66223), 53021 states have internal predecessors, (66223), 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) [2024-11-24 01:14:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53022 states to 53022 states and 66223 transitions. [2024-11-24 01:14:50,873 INFO L78 Accepts]: Start accepts. Automaton has 53022 states and 66223 transitions. Word has length 132 [2024-11-24 01:14:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:50,874 INFO L471 AbstractCegarLoop]: Abstraction has 53022 states and 66223 transitions. [2024-11-24 01:14:50,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-11-24 01:14:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 53022 states and 66223 transitions. [2024-11-24 01:14:50,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 01:14:50,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:50,883 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-24 01:14:50,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 01:14:50,884 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:50,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:50,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1662991261, now seen corresponding path program 1 times [2024-11-24 01:14:50,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:50,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628793460] [2024-11-24 01:14:50,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:50,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 46 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:14:52,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:52,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628793460] [2024-11-24 01:14:52,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628793460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:52,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358417550] [2024-11-24 01:14:52,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:52,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:52,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:14:52,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:14:52,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:14:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:52,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:14:52,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 72 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:14:55,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:57,518 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 63 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:14:57,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358417550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:14:57,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:14:57,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 11] total 36 [2024-11-24 01:14:57,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045512066] [2024-11-24 01:14:57,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:14:57,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-24 01:14:57,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:57,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-24 01:14:57,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1121, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 01:14:57,525 INFO L87 Difference]: Start difference. First operand 53022 states and 66223 transitions. Second operand has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 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) [2024-11-24 01:15:15,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:15,422 INFO L93 Difference]: Finished difference Result 204556 states and 253356 transitions. [2024-11-24 01:15:15,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-24 01:15:15,423 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 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 145 [2024-11-24 01:15:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:15,752 INFO L225 Difference]: With dead ends: 204556 [2024-11-24 01:15:15,752 INFO L226 Difference]: Without dead ends: 156958 [2024-11-24 01:15:15,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1249, Invalid=4913, Unknown=0, NotChecked=0, Total=6162 [2024-11-24 01:15:15,855 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 18164 mSDsluCounter, 20165 mSDsCounter, 0 mSdLazyCounter, 2074 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18164 SdHoareTripleChecker+Valid, 21686 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:15,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18164 Valid, 21686 Invalid, 2121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 2074 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:15:16,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156958 states. [2024-11-24 01:15:26,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156958 to 98130. [2024-11-24 01:15:26,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98130 states, 98128 states have (on average 1.2291293005054622) internal successors, (120612), 98129 states have internal predecessors, (120612), 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) [2024-11-24 01:15:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98130 states to 98130 states and 120612 transitions. [2024-11-24 01:15:26,732 INFO L78 Accepts]: Start accepts. Automaton has 98130 states and 120612 transitions. Word has length 145 [2024-11-24 01:15:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:15:26,733 INFO L471 AbstractCegarLoop]: Abstraction has 98130 states and 120612 transitions. [2024-11-24 01:15:26,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 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) [2024-11-24 01:15:26,735 INFO L276 IsEmpty]: Start isEmpty. Operand 98130 states and 120612 transitions. [2024-11-24 01:15:26,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 01:15:26,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:15:26,747 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:15:26,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:15:26,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-24 01:15:26,948 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:15:26,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:15:26,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1926080977, now seen corresponding path program 1 times [2024-11-24 01:15:26,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:15:26,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537707799] [2024-11-24 01:15:26,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:26,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:15:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 33 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:15:27,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:15:27,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537707799] [2024-11-24 01:15:27,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537707799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:15:27,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47729357] [2024-11-24 01:15:27,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:27,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:15:27,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:15:27,969 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:15:27,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:15:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:28,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:15:28,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 24 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:15:29,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:15:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 17 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:15:34,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47729357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:15:34,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:15:34,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 37 [2024-11-24 01:15:34,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170650159] [2024-11-24 01:15:34,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:15:34,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-24 01:15:34,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:15:34,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-24 01:15:34,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:15:34,162 INFO L87 Difference]: Start difference. First operand 98130 states and 120612 transitions. Second operand has 37 states, 37 states have (on average 10.81081081081081) internal successors, (400), 37 states have internal predecessors, (400), 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) [2024-11-24 01:15:55,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:55,395 INFO L93 Difference]: Finished difference Result 230489 states and 283538 transitions. [2024-11-24 01:15:55,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-24 01:15:55,396 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 10.81081081081081) internal successors, (400), 37 states have internal predecessors, (400), 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 145 [2024-11-24 01:15:55,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:55,532 INFO L225 Difference]: With dead ends: 230489 [2024-11-24 01:15:55,532 INFO L226 Difference]: Without dead ends: 156585 [2024-11-24 01:15:55,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3064 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2075, Invalid=9915, Unknown=0, NotChecked=0, Total=11990 [2024-11-24 01:15:55,598 INFO L435 NwaCegarLoop]: 1528 mSDtfsCounter, 18109 mSDsluCounter, 21675 mSDsCounter, 0 mSdLazyCounter, 2664 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18109 SdHoareTripleChecker+Valid, 23203 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:55,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18109 Valid, 23203 Invalid, 2746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 2664 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:15:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156585 states. [2024-11-24 01:16:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156585 to 64782. [2024-11-24 01:16:04,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64782 states, 64780 states have (on average 1.2294535350416795) internal successors, (79644), 64781 states have internal predecessors, (79644), 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) [2024-11-24 01:16:04,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64782 states to 64782 states and 79644 transitions. [2024-11-24 01:16:04,198 INFO L78 Accepts]: Start accepts. Automaton has 64782 states and 79644 transitions. Word has length 145 [2024-11-24 01:16:04,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:16:04,198 INFO L471 AbstractCegarLoop]: Abstraction has 64782 states and 79644 transitions. [2024-11-24 01:16:04,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.81081081081081) internal successors, (400), 37 states have internal predecessors, (400), 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) [2024-11-24 01:16:04,199 INFO L276 IsEmpty]: Start isEmpty. Operand 64782 states and 79644 transitions. [2024-11-24 01:16:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 01:16:04,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:16:04,204 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-24 01:16:04,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 01:16:04,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-24 01:16:04,405 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:16:04,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:16:04,405 INFO L85 PathProgramCache]: Analyzing trace with hash 384846237, now seen corresponding path program 1 times [2024-11-24 01:16:04,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:16:04,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864212397] [2024-11-24 01:16:04,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:04,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 38 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:16:05,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:05,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864212397] [2024-11-24 01:16:05,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864212397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:16:05,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732226638] [2024-11-24 01:16:05,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:05,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:16:05,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:16:05,570 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:16:05,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:16:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:05,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:16:05,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:16:07,660 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 49 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:16:07,660 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:16:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 71 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:16:09,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732226638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:16:09,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:16:09,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 12] total 42 [2024-11-24 01:16:09,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212597770] [2024-11-24 01:16:09,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:16:09,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-24 01:16:09,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:16:09,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-24 01:16:09,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1576, Unknown=0, NotChecked=0, Total=1722 [2024-11-24 01:16:09,153 INFO L87 Difference]: Start difference. First operand 64782 states and 79644 transitions. Second operand has 42 states, 42 states have (on average 9.404761904761905) internal successors, (395), 42 states have internal predecessors, (395), 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) [2024-11-24 01:16:43,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:16:43,015 INFO L93 Difference]: Finished difference Result 184096 states and 228584 transitions. [2024-11-24 01:16:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-11-24 01:16:43,015 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 9.404761904761905) internal successors, (395), 42 states have internal predecessors, (395), 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 145 [2024-11-24 01:16:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:16:43,124 INFO L225 Difference]: With dead ends: 184096 [2024-11-24 01:16:43,124 INFO L226 Difference]: Without dead ends: 137422 [2024-11-24 01:16:43,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8699 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=3486, Invalid=24236, Unknown=0, NotChecked=0, Total=27722 [2024-11-24 01:16:43,146 INFO L435 NwaCegarLoop]: 1722 mSDtfsCounter, 20885 mSDsluCounter, 27982 mSDsCounter, 0 mSdLazyCounter, 5982 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20885 SdHoareTripleChecker+Valid, 29704 SdHoareTripleChecker+Invalid, 6064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 5982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:16:43,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20885 Valid, 29704 Invalid, 6064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 5982 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-24 01:16:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137422 states. [2024-11-24 01:16:53,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137422 to 81435. [2024-11-24 01:16:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81435 states, 81433 states have (on average 1.2212370906143701) internal successors, (99449), 81434 states have internal predecessors, (99449), 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) [2024-11-24 01:16:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81435 states to 81435 states and 99449 transitions. [2024-11-24 01:16:53,782 INFO L78 Accepts]: Start accepts. Automaton has 81435 states and 99449 transitions. Word has length 145 [2024-11-24 01:16:53,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:16:53,782 INFO L471 AbstractCegarLoop]: Abstraction has 81435 states and 99449 transitions. [2024-11-24 01:16:53,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 9.404761904761905) internal successors, (395), 42 states have internal predecessors, (395), 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) [2024-11-24 01:16:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 81435 states and 99449 transitions. [2024-11-24 01:16:53,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 01:16:53,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:16:53,788 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:16:53,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-24 01:16:53,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-24 01:16:53,989 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:16:53,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:16:53,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2070208138, now seen corresponding path program 1 times [2024-11-24 01:16:53,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:16:53,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507881423] [2024-11-24 01:16:53,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:53,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 52 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:16:55,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:55,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507881423] [2024-11-24 01:16:55,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507881423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:16:55,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926630817] [2024-11-24 01:16:55,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:55,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:16:55,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:16:55,165 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:16:55,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa63796-49a2-4668-8ccf-bdf360b1df89/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:16:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:55,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 01:16:55,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:16:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 60 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:16:56,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:16:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 52 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:16:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926630817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:16:58,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:16:58,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2024-11-24 01:16:58,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434538041] [2024-11-24 01:16:58,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:16:58,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 01:16:58,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:16:58,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 01:16:58,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:16:58,821 INFO L87 Difference]: Start difference. First operand 81435 states and 99449 transitions. Second operand has 30 states, 30 states have (on average 11.666666666666666) internal successors, (350), 29 states have internal predecessors, (350), 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)