./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ed18464d9ce97d1cc1f49d30a31556076037dce4eff04ef8ec5de65e115e002 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:10:21,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:10:21,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:10:21,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:10:21,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:10:21,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:10:21,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:10:21,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:10:21,465 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:10:21,465 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:10:21,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:10:21,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:10:21,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:10:21,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:10:21,467 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:10:21,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:10:21,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:10:21,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:10:21,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:10:21,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:10:21,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:10:21,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:10:21,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:10:21,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:10:21,469 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:10:21,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:10:21,469 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:10:21,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:10:21,469 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:10:21,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:10:21,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:10:21,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:10:21,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:10:21,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:10:21,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:10:21,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:10:21,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:10:21,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:10:21,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:10:21,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:10:21,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:10:21,472 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_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed18464d9ce97d1cc1f49d30a31556076037dce4eff04ef8ec5de65e115e002 [2024-11-28 02:10:21,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:10:21,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:10:21,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:10:21,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:10:21,779 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:10:21,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-28 02:10:24,737 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/data/939d1ab91/046d58102e63471e8825e4da0e389c4f/FLAG792630e11 [2024-11-28 02:10:25,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:10:25,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-28 02:10:25,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/data/939d1ab91/046d58102e63471e8825e4da0e389c4f/FLAG792630e11 [2024-11-28 02:10:25,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/data/939d1ab91/046d58102e63471e8825e4da0e389c4f [2024-11-28 02:10:25,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:10:25,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:10:25,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:10:25,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:10:25,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:10:25,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423f0faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25, skipping insertion in model container [2024-11-28 02:10:25,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,059 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:10:25,204 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_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-11-28 02:10:25,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:10:25,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:10:25,288 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_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-11-28 02:10:25,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:10:25,348 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:10:25,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25 WrapperNode [2024-11-28 02:10:25,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:10:25,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:10:25,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:10:25,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:10:25,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,440 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 444 [2024-11-28 02:10:25,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:10:25,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:10:25,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:10:25,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:10:25,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,497 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2024-11-28 02:10:25,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:10:25,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:10:25,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:10:25,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:10:25,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (1/1) ... [2024-11-28 02:10:25,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:10:25,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:25,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:10:25,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:10:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:10:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:10:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:10:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:10:25,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:10:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:10:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:10:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:10:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:10:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:10:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:10:25,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:10:25,796 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:10:25,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:10:26,416 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-28 02:10:26,417 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:10:26,432 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:10:26,432 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:10:26,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:26 BoogieIcfgContainer [2024-11-28 02:10:26,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:10:26,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:10:26,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:10:26,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:10:26,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:10:25" (1/3) ... [2024-11-28 02:10:26,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bab9c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:10:26, skipping insertion in model container [2024-11-28 02:10:26,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:25" (2/3) ... [2024-11-28 02:10:26,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bab9c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:10:26, skipping insertion in model container [2024-11-28 02:10:26,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:26" (3/3) ... [2024-11-28 02:10:26,444 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-28 02:10:26,459 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:10:26,460 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-27.i that has 2 procedures, 94 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:10:26,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:10:26,559 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;@7dd1c440, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:10:26,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:10:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:10:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 02:10:26,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:26,575 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:26,575 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:26,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:26,580 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-11-28 02:10:26,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:26,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297109252] [2024-11-28 02:10:26,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:26,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 02:10:26,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:26,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297109252] [2024-11-28 02:10:26,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297109252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:10:26,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164315841] [2024-11-28 02:10:26,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:26,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:26,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:26,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:10:26,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:10:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:27,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:10:27,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 02:10:27,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:10:27,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164315841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:27,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:10:27,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:10:27,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920894172] [2024-11-28 02:10:27,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:27,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:10:27,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:27,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:10:27,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:10:27,278 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:27,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:27,308 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-28 02:10:27,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:10:27,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-28 02:10:27,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:27,317 INFO L225 Difference]: With dead ends: 181 [2024-11-28 02:10:27,319 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 02:10:27,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:10:27,330 INFO L435 NwaCegarLoop]: 129 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, 129 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 [2024-11-28 02:10:27,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:10:27,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 02:10:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-28 02:10:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:10:27,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-28 02:10:27,380 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-28 02:10:27,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:27,380 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-28 02:10:27,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:27,381 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-28 02:10:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 02:10:27,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:27,384 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:27,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:10:27,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:27,585 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:27,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-11-28 02:10:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706817851] [2024-11-28 02:10:27,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:28,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:28,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706817851] [2024-11-28 02:10:28,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706817851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:28,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:28,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:10:28,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311409874] [2024-11-28 02:10:28,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:28,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:10:28,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:28,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:10:28,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:28,525 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:28,651 INFO L93 Difference]: Finished difference Result 224 states and 324 transitions. [2024-11-28 02:10:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:10:28,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-28 02:10:28,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:28,655 INFO L225 Difference]: With dead ends: 224 [2024-11-28 02:10:28,656 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 02:10:28,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:10:28,657 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 135 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:28,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 345 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:10:28,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 02:10:28,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 94. [2024-11-28 02:10:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:10:28,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions. [2024-11-28 02:10:28,676 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 131 [2024-11-28 02:10:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:28,680 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 135 transitions. [2024-11-28 02:10:28,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions. [2024-11-28 02:10:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 02:10:28,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:28,684 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:28,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:10:28,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:28,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:28,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1362010684, now seen corresponding path program 1 times [2024-11-28 02:10:28,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:28,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264265508] [2024-11-28 02:10:28,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:28,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:29,595 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:29,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:29,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264265508] [2024-11-28 02:10:29,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264265508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:29,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:29,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:10:29,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032754027] [2024-11-28 02:10:29,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:29,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:10:29,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:29,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:10:29,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:29,597 INFO L87 Difference]: Start difference. First operand 94 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:29,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:29,811 INFO L93 Difference]: Finished difference Result 241 states and 348 transitions. [2024-11-28 02:10:29,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:10:29,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-28 02:10:29,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:29,814 INFO L225 Difference]: With dead ends: 241 [2024-11-28 02:10:29,815 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 02:10:29,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:10:29,819 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 49 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:29,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 397 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:10:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 02:10:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2024-11-28 02:10:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 109 states have internal predecessors, (141), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 209 transitions. [2024-11-28 02:10:29,855 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 209 transitions. Word has length 131 [2024-11-28 02:10:29,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:29,855 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-28 02:10:29,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 209 transitions. [2024-11-28 02:10:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 02:10:29,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:29,860 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:29,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:10:29,860 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:29,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:29,861 INFO L85 PathProgramCache]: Analyzing trace with hash 561425464, now seen corresponding path program 1 times [2024-11-28 02:10:29,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:29,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267341054] [2024-11-28 02:10:29,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:29,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:30,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:30,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267341054] [2024-11-28 02:10:30,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267341054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:30,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:30,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:10:30,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352048363] [2024-11-28 02:10:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:30,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:10:30,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:30,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:10:30,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:30,362 INFO L87 Difference]: Start difference. First operand 146 states and 209 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:30,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:30,463 INFO L93 Difference]: Finished difference Result 288 states and 413 transitions. [2024-11-28 02:10:30,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:10:30,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-28 02:10:30,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:30,466 INFO L225 Difference]: With dead ends: 288 [2024-11-28 02:10:30,466 INFO L226 Difference]: Without dead ends: 197 [2024-11-28 02:10:30,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:10:30,472 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 118 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:30,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 463 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:10:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-28 02:10:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 164. [2024-11-28 02:10:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 127 states have (on average 1.2992125984251968) internal successors, (165), 127 states have internal predecessors, (165), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:30,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2024-11-28 02:10:30,505 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 131 [2024-11-28 02:10:30,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:30,506 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2024-11-28 02:10:30,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2024-11-28 02:10:30,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:10:30,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:30,511 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:30,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:10:30,511 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:30,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:30,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1871022988, now seen corresponding path program 1 times [2024-11-28 02:10:30,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:30,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830756321] [2024-11-28 02:10:30,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:30,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:31,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:31,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830756321] [2024-11-28 02:10:31,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830756321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:31,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:31,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:10:31,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970751776] [2024-11-28 02:10:31,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:31,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:10:31,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:31,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:10:31,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:10:31,855 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:32,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:32,461 INFO L93 Difference]: Finished difference Result 323 states and 459 transitions. [2024-11-28 02:10:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:10:32,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-28 02:10:32,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:32,465 INFO L225 Difference]: With dead ends: 323 [2024-11-28 02:10:32,467 INFO L226 Difference]: Without dead ends: 219 [2024-11-28 02:10:32,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:10:32,469 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 159 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:32,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 564 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:10:32,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-28 02:10:32,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2024-11-28 02:10:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 174 states have (on average 1.3218390804597702) internal successors, (230), 175 states have internal predecessors, (230), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 02:10:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 306 transitions. [2024-11-28 02:10:32,519 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 306 transitions. Word has length 132 [2024-11-28 02:10:32,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:32,520 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 306 transitions. [2024-11-28 02:10:32,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:32,520 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2024-11-28 02:10:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:10:32,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:32,522 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:32,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:10:32,522 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:32,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:32,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1080888233, now seen corresponding path program 1 times [2024-11-28 02:10:32,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:32,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57911164] [2024-11-28 02:10:32,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:32,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:33,417 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:33,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:33,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57911164] [2024-11-28 02:10:33,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57911164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:33,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:33,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:10:33,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616688404] [2024-11-28 02:10:33,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:33,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:10:33,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:33,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:10:33,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:10:33,420 INFO L87 Difference]: Start difference. First operand 216 states and 306 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:33,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:33,721 INFO L93 Difference]: Finished difference Result 526 states and 750 transitions. [2024-11-28 02:10:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:10:33,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-11-28 02:10:33,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:33,726 INFO L225 Difference]: With dead ends: 526 [2024-11-28 02:10:33,727 INFO L226 Difference]: Without dead ends: 370 [2024-11-28 02:10:33,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:10:33,728 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 158 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:33,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 463 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:10:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-28 02:10:33,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 364. [2024-11-28 02:10:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 299 states have (on average 1.3377926421404682) internal successors, (400), 301 states have internal predecessors, (400), 59 states have call successors, (59), 5 states have call predecessors, (59), 5 states have return successors, (59), 57 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 02:10:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 518 transitions. [2024-11-28 02:10:33,796 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 518 transitions. Word has length 133 [2024-11-28 02:10:33,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:33,797 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 518 transitions. [2024-11-28 02:10:33,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:33,797 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 518 transitions. [2024-11-28 02:10:33,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 02:10:33,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:33,799 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:33,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:10:33,800 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:33,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:33,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2089824625, now seen corresponding path program 1 times [2024-11-28 02:10:33,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:33,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358407658] [2024-11-28 02:10:33,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:33,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:34,356 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:34,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:34,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358407658] [2024-11-28 02:10:34,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358407658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:34,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:34,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:10:34,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650745047] [2024-11-28 02:10:34,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:34,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:10:34,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:34,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:10:34,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:10:34,358 INFO L87 Difference]: Start difference. First operand 364 states and 518 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:34,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:34,722 INFO L93 Difference]: Finished difference Result 628 states and 894 transitions. [2024-11-28 02:10:34,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:10:34,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-28 02:10:34,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:34,725 INFO L225 Difference]: With dead ends: 628 [2024-11-28 02:10:34,725 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 02:10:34,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:10:34,726 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 149 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:34,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 441 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:10:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 02:10:34,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 253. [2024-11-28 02:10:34,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 212 states have internal predecessors, (283), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 02:10:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 359 transitions. [2024-11-28 02:10:34,761 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 359 transitions. Word has length 134 [2024-11-28 02:10:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:34,762 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 359 transitions. [2024-11-28 02:10:34,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:34,762 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 359 transitions. [2024-11-28 02:10:34,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 02:10:34,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:34,764 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:34,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:10:34,764 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:34,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:34,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1530075279, now seen corresponding path program 1 times [2024-11-28 02:10:34,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:34,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955964061] [2024-11-28 02:10:34,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:34,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:35,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:35,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955964061] [2024-11-28 02:10:35,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955964061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:35,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:35,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:10:35,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687630944] [2024-11-28 02:10:35,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:35,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:10:35,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:35,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:10:35,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:10:35,326 INFO L87 Difference]: Start difference. First operand 253 states and 359 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:35,757 INFO L93 Difference]: Finished difference Result 416 states and 583 transitions. [2024-11-28 02:10:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:10:35,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-28 02:10:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:35,759 INFO L225 Difference]: With dead ends: 416 [2024-11-28 02:10:35,759 INFO L226 Difference]: Without dead ends: 264 [2024-11-28 02:10:35,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:10:35,760 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 196 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:35,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 394 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:10:35,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-28 02:10:35,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 226. [2024-11-28 02:10:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 187 states have (on average 1.320855614973262) internal successors, (247), 187 states have internal predecessors, (247), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 315 transitions. [2024-11-28 02:10:35,803 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 315 transitions. Word has length 134 [2024-11-28 02:10:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:35,804 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 315 transitions. [2024-11-28 02:10:35,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 315 transitions. [2024-11-28 02:10:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:10:35,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:35,807 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:35,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:10:35,807 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:35,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:35,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-11-28 02:10:35,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:35,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886686164] [2024-11-28 02:10:35,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:35,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:37,595 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:37,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:37,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886686164] [2024-11-28 02:10:37,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886686164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:37,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:37,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:10:37,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746766921] [2024-11-28 02:10:37,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:37,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:10:37,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:37,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:10:37,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:10:37,598 INFO L87 Difference]: Start difference. First operand 226 states and 315 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:39,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:39,048 INFO L93 Difference]: Finished difference Result 563 states and 782 transitions. [2024-11-28 02:10:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:10:39,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 02:10:39,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:39,051 INFO L225 Difference]: With dead ends: 563 [2024-11-28 02:10:39,051 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 02:10:39,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:10:39,052 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 313 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:39,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 886 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:10:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 02:10:39,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 258. [2024-11-28 02:10:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 219 states have (on average 1.3196347031963471) internal successors, (289), 219 states have internal predecessors, (289), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:39,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 357 transitions. [2024-11-28 02:10:39,097 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 357 transitions. Word has length 135 [2024-11-28 02:10:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:39,098 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 357 transitions. [2024-11-28 02:10:39,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:39,098 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 357 transitions. [2024-11-28 02:10:39,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:10:39,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:39,100 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:39,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:10:39,100 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:39,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-11-28 02:10:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537907193] [2024-11-28 02:10:39,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:39,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:40,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:40,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537907193] [2024-11-28 02:10:40,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537907193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:40,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:40,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:10:40,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553685381] [2024-11-28 02:10:40,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:40,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:10:40,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:40,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:10:40,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:10:40,642 INFO L87 Difference]: Start difference. First operand 258 states and 357 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:41,465 INFO L93 Difference]: Finished difference Result 589 states and 814 transitions. [2024-11-28 02:10:41,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:10:41,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 02:10:41,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:41,468 INFO L225 Difference]: With dead ends: 589 [2024-11-28 02:10:41,468 INFO L226 Difference]: Without dead ends: 334 [2024-11-28 02:10:41,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:10:41,469 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 284 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:41,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 575 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:10:41,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-28 02:10:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 258. [2024-11-28 02:10:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 219 states have (on average 1.3105022831050228) internal successors, (287), 219 states have internal predecessors, (287), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:41,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 355 transitions. [2024-11-28 02:10:41,521 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 355 transitions. Word has length 135 [2024-11-28 02:10:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:41,523 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 355 transitions. [2024-11-28 02:10:41,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 355 transitions. [2024-11-28 02:10:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:10:41,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:41,530 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:41,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:10:41,530 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:41,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:41,530 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-11-28 02:10:41,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:41,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460799384] [2024-11-28 02:10:41,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:41,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:42,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:42,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460799384] [2024-11-28 02:10:42,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460799384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:42,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:42,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:10:42,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201461396] [2024-11-28 02:10:42,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:42,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:10:42,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:42,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:10:42,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:10:42,899 INFO L87 Difference]: Start difference. First operand 258 states and 355 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:43,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:43,776 INFO L93 Difference]: Finished difference Result 587 states and 808 transitions. [2024-11-28 02:10:43,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:10:43,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 02:10:43,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:43,779 INFO L225 Difference]: With dead ends: 587 [2024-11-28 02:10:43,779 INFO L226 Difference]: Without dead ends: 332 [2024-11-28 02:10:43,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:10:43,780 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 308 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:43,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 521 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:10:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-28 02:10:43,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 258. [2024-11-28 02:10:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 219 states have (on average 1.3013698630136987) internal successors, (285), 219 states have internal predecessors, (285), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:43,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 353 transitions. [2024-11-28 02:10:43,826 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 353 transitions. Word has length 135 [2024-11-28 02:10:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:43,827 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 353 transitions. [2024-11-28 02:10:43,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 353 transitions. [2024-11-28 02:10:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:10:43,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:43,829 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:43,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:10:43,829 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:43,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:43,830 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-11-28 02:10:43,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:43,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836753898] [2024-11-28 02:10:43,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:43,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:45,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:45,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836753898] [2024-11-28 02:10:45,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836753898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:45,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:45,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:10:45,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124133311] [2024-11-28 02:10:45,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:45,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:10:45,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:45,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:10:45,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:10:45,228 INFO L87 Difference]: Start difference. First operand 258 states and 353 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:46,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:46,373 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2024-11-28 02:10:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:10:46,374 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 02:10:46,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:46,376 INFO L225 Difference]: With dead ends: 587 [2024-11-28 02:10:46,376 INFO L226 Difference]: Without dead ends: 332 [2024-11-28 02:10:46,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:10:46,378 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 157 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:46,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 999 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:10:46,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-28 02:10:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 252. [2024-11-28 02:10:46,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 213 states have (on average 1.300469483568075) internal successors, (277), 213 states have internal predecessors, (277), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 345 transitions. [2024-11-28 02:10:46,424 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 345 transitions. Word has length 135 [2024-11-28 02:10:46,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:46,424 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 345 transitions. [2024-11-28 02:10:46,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:46,424 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 345 transitions. [2024-11-28 02:10:46,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:10:46,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:46,428 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:46,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:10:46,428 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:46,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:46,429 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-11-28 02:10:46,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:46,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503592470] [2024-11-28 02:10:46,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:46,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:46,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:46,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503592470] [2024-11-28 02:10:46,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503592470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:46,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:46,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:10:46,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307059240] [2024-11-28 02:10:46,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:46,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:10:46,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:46,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:10:46,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:46,724 INFO L87 Difference]: Start difference. First operand 252 states and 345 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:46,831 INFO L93 Difference]: Finished difference Result 608 states and 829 transitions. [2024-11-28 02:10:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:10:46,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-28 02:10:46,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:46,834 INFO L225 Difference]: With dead ends: 608 [2024-11-28 02:10:46,835 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 02:10:46,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:10:46,836 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 54 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:46,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 465 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:10:46,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 02:10:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2024-11-28 02:10:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 272 states have (on average 1.286764705882353) internal successors, (350), 272 states have internal predecessors, (350), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 418 transitions. [2024-11-28 02:10:46,879 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 418 transitions. Word has length 135 [2024-11-28 02:10:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:46,879 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 418 transitions. [2024-11-28 02:10:46,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:46,880 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 418 transitions. [2024-11-28 02:10:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:10:46,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:46,882 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:46,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:10:46,882 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:46,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-11-28 02:10:46,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:46,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488302351] [2024-11-28 02:10:46,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:46,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:49,387 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:49,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:49,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488302351] [2024-11-28 02:10:49,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488302351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:49,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:49,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 02:10:49,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907130647] [2024-11-28 02:10:49,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:49,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:10:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:49,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:10:49,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:10:49,389 INFO L87 Difference]: Start difference. First operand 311 states and 418 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:50,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:50,837 INFO L93 Difference]: Finished difference Result 762 states and 1024 transitions. [2024-11-28 02:10:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:10:50,838 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 02:10:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:50,842 INFO L225 Difference]: With dead ends: 762 [2024-11-28 02:10:50,842 INFO L226 Difference]: Without dead ends: 454 [2024-11-28 02:10:50,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:10:50,844 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 417 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:50,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 683 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:10:50,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-28 02:10:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 384. [2024-11-28 02:10:50,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 345 states have (on average 1.2927536231884058) internal successors, (446), 345 states have internal predecessors, (446), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:50,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 514 transitions. [2024-11-28 02:10:50,902 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 514 transitions. Word has length 135 [2024-11-28 02:10:50,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:50,903 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 514 transitions. [2024-11-28 02:10:50,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:10:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 514 transitions. [2024-11-28 02:10:50,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:10:50,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:50,905 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:50,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:10:50,906 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:50,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-11-28 02:10:50,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:50,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092916753] [2024-11-28 02:10:50,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:50,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:51,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:51,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092916753] [2024-11-28 02:10:51,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092916753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:51,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:51,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:10:51,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429000478] [2024-11-28 02:10:51,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:51,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:10:51,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:51,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:10:51,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:51,159 INFO L87 Difference]: Start difference. First operand 384 states and 514 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:51,281 INFO L93 Difference]: Finished difference Result 805 states and 1078 transitions. [2024-11-28 02:10:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:10:51,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-28 02:10:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:51,284 INFO L225 Difference]: With dead ends: 805 [2024-11-28 02:10:51,284 INFO L226 Difference]: Without dead ends: 424 [2024-11-28 02:10:51,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:10:51,286 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 47 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:51,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 569 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:10:51,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-28 02:10:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 378. [2024-11-28 02:10:51,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 339 states have (on average 1.2861356932153392) internal successors, (436), 339 states have internal predecessors, (436), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 504 transitions. [2024-11-28 02:10:51,336 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 504 transitions. Word has length 135 [2024-11-28 02:10:51,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:51,336 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 504 transitions. [2024-11-28 02:10:51,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:51,336 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 504 transitions. [2024-11-28 02:10:51,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:10:51,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:51,340 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:51,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:10:51,340 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:51,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-11-28 02:10:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007598462] [2024-11-28 02:10:51,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:51,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:51,910 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:51,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:51,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007598462] [2024-11-28 02:10:51,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007598462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:51,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:51,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:10:51,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738332460] [2024-11-28 02:10:51,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:51,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:10:51,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:51,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:10:51,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:10:51,912 INFO L87 Difference]: Start difference. First operand 378 states and 504 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:52,360 INFO L93 Difference]: Finished difference Result 752 states and 999 transitions. [2024-11-28 02:10:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:10:52,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 02:10:52,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:52,363 INFO L225 Difference]: With dead ends: 752 [2024-11-28 02:10:52,363 INFO L226 Difference]: Without dead ends: 547 [2024-11-28 02:10:52,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:10:52,365 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 213 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:52,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 418 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:10:52,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-28 02:10:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 502. [2024-11-28 02:10:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 463 states have (on average 1.2915766738660908) internal successors, (598), 463 states have internal predecessors, (598), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:52,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 666 transitions. [2024-11-28 02:10:52,417 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 666 transitions. Word has length 139 [2024-11-28 02:10:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:52,417 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 666 transitions. [2024-11-28 02:10:52,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 666 transitions. [2024-11-28 02:10:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:10:52,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:52,419 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:52,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:10:52,420 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:52,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:52,420 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-11-28 02:10:52,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:52,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731668682] [2024-11-28 02:10:52,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:52,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:53,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:53,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731668682] [2024-11-28 02:10:53,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731668682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:53,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:53,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:10:53,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294988033] [2024-11-28 02:10:53,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:53,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:10:53,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:53,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:10:53,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:10:53,880 INFO L87 Difference]: Start difference. First operand 502 states and 666 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:55,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:55,069 INFO L93 Difference]: Finished difference Result 865 states and 1147 transitions. [2024-11-28 02:10:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:10:55,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 02:10:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:55,072 INFO L225 Difference]: With dead ends: 865 [2024-11-28 02:10:55,072 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 02:10:55,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:10:55,074 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 253 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:55,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 823 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:10:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 02:10:55,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 506. [2024-11-28 02:10:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 467 states have (on average 1.2890792291220556) internal successors, (602), 467 states have internal predecessors, (602), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:55,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 670 transitions. [2024-11-28 02:10:55,127 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 670 transitions. Word has length 139 [2024-11-28 02:10:55,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:55,127 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 670 transitions. [2024-11-28 02:10:55,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 670 transitions. [2024-11-28 02:10:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:10:55,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:55,130 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:55,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:10:55,130 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:55,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:55,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-11-28 02:10:55,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:55,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926440099] [2024-11-28 02:10:55,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:55,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:55,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:55,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926440099] [2024-11-28 02:10:55,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926440099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:55,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:55,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:10:55,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565833720] [2024-11-28 02:10:55,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:55,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:10:55,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:55,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:10:55,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:55,372 INFO L87 Difference]: Start difference. First operand 506 states and 670 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:55,487 INFO L93 Difference]: Finished difference Result 1067 states and 1414 transitions. [2024-11-28 02:10:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:10:55,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 02:10:55,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:55,491 INFO L225 Difference]: With dead ends: 1067 [2024-11-28 02:10:55,491 INFO L226 Difference]: Without dead ends: 564 [2024-11-28 02:10:55,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:10:55,493 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 91 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:55,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 353 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:10:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-28 02:10:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 523. [2024-11-28 02:10:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 484 states have (on average 1.2913223140495869) internal successors, (625), 484 states have internal predecessors, (625), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 693 transitions. [2024-11-28 02:10:55,546 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 693 transitions. Word has length 139 [2024-11-28 02:10:55,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:55,547 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 693 transitions. [2024-11-28 02:10:55,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 693 transitions. [2024-11-28 02:10:55,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:10:55,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:55,549 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:55,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:10:55,550 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:55,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:55,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-11-28 02:10:55,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:55,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410426205] [2024-11-28 02:10:55,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:55,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 02:10:55,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:55,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410426205] [2024-11-28 02:10:55,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410426205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:10:55,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674144200] [2024-11-28 02:10:55,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:55,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:55,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:55,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:10:55,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:10:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:55,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:10:56,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:56,050 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:10:56,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674144200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:56,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:10:56,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-28 02:10:56,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085632793] [2024-11-28 02:10:56,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:56,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:10:56,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:56,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:10:56,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:10:56,051 INFO L87 Difference]: Start difference. First operand 523 states and 693 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:56,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:56,133 INFO L93 Difference]: Finished difference Result 1051 states and 1393 transitions. [2024-11-28 02:10:56,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:10:56,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 02:10:56,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:56,136 INFO L225 Difference]: With dead ends: 1051 [2024-11-28 02:10:56,136 INFO L226 Difference]: Without dead ends: 531 [2024-11-28 02:10:56,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:10:56,138 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:56,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:10:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-28 02:10:56,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 528. [2024-11-28 02:10:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 489 states have (on average 1.2883435582822085) internal successors, (630), 489 states have internal predecessors, (630), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 698 transitions. [2024-11-28 02:10:56,199 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 698 transitions. Word has length 139 [2024-11-28 02:10:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:56,199 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 698 transitions. [2024-11-28 02:10:56,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:10:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 698 transitions. [2024-11-28 02:10:56,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:10:56,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:56,202 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:56,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:10:56,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db8ed6b-14a7-4f03-a8cb-10ebfcf3307f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:56,407 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:56,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:56,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-11-28 02:10:56,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:56,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961699043] [2024-11-28 02:10:56,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:56,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:57,433 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:57,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:57,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961699043] [2024-11-28 02:10:57,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961699043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:57,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:57,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 02:10:57,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437482144] [2024-11-28 02:10:57,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:57,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:10:57,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:57,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:10:57,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:10:57,434 INFO L87 Difference]: Start difference. First operand 528 states and 698 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:58,458 INFO L93 Difference]: Finished difference Result 1063 states and 1399 transitions. [2024-11-28 02:10:58,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:10:58,459 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 02:10:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:58,462 INFO L225 Difference]: With dead ends: 1063 [2024-11-28 02:10:58,463 INFO L226 Difference]: Without dead ends: 718 [2024-11-28 02:10:58,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:10:58,464 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 266 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:58,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 750 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:10:58,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-28 02:10:58,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 582. [2024-11-28 02:10:58,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 543 states have (on average 1.292817679558011) internal successors, (702), 543 states have internal predecessors, (702), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:10:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 770 transitions. [2024-11-28 02:10:58,520 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 770 transitions. Word has length 139 [2024-11-28 02:10:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:58,520 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 770 transitions. [2024-11-28 02:10:58,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:10:58,521 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 770 transitions. [2024-11-28 02:10:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:10:58,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:58,523 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:58,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:10:58,523 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:58,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:58,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1811587497, now seen corresponding path program 1 times [2024-11-28 02:10:58,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:58,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023793990] [2024-11-28 02:10:58,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:58,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:10:59,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:59,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023793990] [2024-11-28 02:10:59,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023793990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:59,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:59,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:10:59,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089141888] [2024-11-28 02:10:59,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:59,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:10:59,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:59,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:10:59,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:10:59,588 INFO L87 Difference]: Start difference. First operand 582 states and 770 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:00,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:00,475 INFO L93 Difference]: Finished difference Result 1029 states and 1361 transitions. [2024-11-28 02:11:00,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:11:00,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 02:11:00,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:00,479 INFO L225 Difference]: With dead ends: 1029 [2024-11-28 02:11:00,479 INFO L226 Difference]: Without dead ends: 630 [2024-11-28 02:11:00,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:11:00,480 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 238 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:00,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 622 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:11:00,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-28 02:11:00,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 544. [2024-11-28 02:11:00,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 505 states have (on average 1.2871287128712872) internal successors, (650), 505 states have internal predecessors, (650), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:11:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 718 transitions. [2024-11-28 02:11:00,568 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 718 transitions. Word has length 139 [2024-11-28 02:11:00,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:00,568 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 718 transitions. [2024-11-28 02:11:00,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 718 transitions. [2024-11-28 02:11:00,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:11:00,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:00,571 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:00,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:11:00,571 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:00,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-11-28 02:11:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:00,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261859900] [2024-11-28 02:11:00,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:01,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:01,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261859900] [2024-11-28 02:11:01,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261859900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:01,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:01,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:11:01,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250626316] [2024-11-28 02:11:01,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:01,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:11:01,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:01,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:11:01,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:11:01,549 INFO L87 Difference]: Start difference. First operand 544 states and 718 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:02,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:02,382 INFO L93 Difference]: Finished difference Result 1054 states and 1387 transitions. [2024-11-28 02:11:02,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:11:02,383 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 02:11:02,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:02,386 INFO L225 Difference]: With dead ends: 1054 [2024-11-28 02:11:02,386 INFO L226 Difference]: Without dead ends: 693 [2024-11-28 02:11:02,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:11:02,389 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 227 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:02,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1074 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:11:02,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-28 02:11:02,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 653. [2024-11-28 02:11:02,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 614 states have (on average 1.289902280130293) internal successors, (792), 614 states have internal predecessors, (792), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:11:02,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 860 transitions. [2024-11-28 02:11:02,448 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 860 transitions. Word has length 139 [2024-11-28 02:11:02,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:02,449 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 860 transitions. [2024-11-28 02:11:02,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 860 transitions. [2024-11-28 02:11:02,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:11:02,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:02,451 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:02,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:11:02,451 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:02,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:02,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1592732779, now seen corresponding path program 1 times [2024-11-28 02:11:02,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:02,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282442417] [2024-11-28 02:11:02,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:02,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:02,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282442417] [2024-11-28 02:11:02,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282442417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:02,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:11:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537962999] [2024-11-28 02:11:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:02,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:11:02,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:02,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:11:02,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:11:02,995 INFO L87 Difference]: Start difference. First operand 653 states and 860 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:03,477 INFO L93 Difference]: Finished difference Result 1159 states and 1524 transitions. [2024-11-28 02:11:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:11:03,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 02:11:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:03,481 INFO L225 Difference]: With dead ends: 1159 [2024-11-28 02:11:03,481 INFO L226 Difference]: Without dead ends: 689 [2024-11-28 02:11:03,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:11:03,482 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 287 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:03,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 576 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:11:03,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-28 02:11:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 653. [2024-11-28 02:11:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 614 states have (on average 1.288273615635179) internal successors, (791), 614 states have internal predecessors, (791), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:11:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 859 transitions. [2024-11-28 02:11:03,540 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 859 transitions. Word has length 139 [2024-11-28 02:11:03,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:03,541 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 859 transitions. [2024-11-28 02:11:03,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 859 transitions. [2024-11-28 02:11:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:11:03,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:03,543 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:03,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:11:03,543 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:03,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-11-28 02:11:03,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736974200] [2024-11-28 02:11:03,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:05,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:05,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736974200] [2024-11-28 02:11:05,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736974200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:05,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:05,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 02:11:05,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835601611] [2024-11-28 02:11:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:05,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:11:05,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:05,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:11:05,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:11:05,465 INFO L87 Difference]: Start difference. First operand 653 states and 859 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:11:06,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:06,812 INFO L93 Difference]: Finished difference Result 1226 states and 1607 transitions. [2024-11-28 02:11:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:11:06,812 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-28 02:11:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:06,815 INFO L225 Difference]: With dead ends: 1226 [2024-11-28 02:11:06,816 INFO L226 Difference]: Without dead ends: 756 [2024-11-28 02:11:06,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:11:06,817 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 424 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:06,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 580 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:11:06,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-28 02:11:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 670. [2024-11-28 02:11:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 631 states have (on average 1.2884310618066561) internal successors, (813), 631 states have internal predecessors, (813), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:11:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 881 transitions. [2024-11-28 02:11:06,882 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 881 transitions. Word has length 139 [2024-11-28 02:11:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:06,883 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 881 transitions. [2024-11-28 02:11:06,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:11:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 881 transitions. [2024-11-28 02:11:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:11:06,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:06,885 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:06,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:11:06,885 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-11-28 02:11:06,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:06,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643108244] [2024-11-28 02:11:06,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:07,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643108244] [2024-11-28 02:11:07,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643108244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:07,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:07,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:11:07,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625189721] [2024-11-28 02:11:07,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:07,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:11:07,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:07,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:11:07,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:11:07,484 INFO L87 Difference]: Start difference. First operand 670 states and 881 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:08,045 INFO L93 Difference]: Finished difference Result 1227 states and 1610 transitions. [2024-11-28 02:11:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:11:08,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 02:11:08,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:08,048 INFO L225 Difference]: With dead ends: 1227 [2024-11-28 02:11:08,048 INFO L226 Difference]: Without dead ends: 740 [2024-11-28 02:11:08,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:11:08,050 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 163 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:08,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 804 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:11:08,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-28 02:11:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 699. [2024-11-28 02:11:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 660 states have (on average 1.2893939393939393) internal successors, (851), 660 states have internal predecessors, (851), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:11:08,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 919 transitions. [2024-11-28 02:11:08,113 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 919 transitions. Word has length 139 [2024-11-28 02:11:08,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:08,114 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 919 transitions. [2024-11-28 02:11:08,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:08,114 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 919 transitions. [2024-11-28 02:11:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:11:08,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:08,116 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:08,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 02:11:08,116 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:08,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:08,117 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-11-28 02:11:08,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:08,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491206657] [2024-11-28 02:11:08,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:08,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:09,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:09,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491206657] [2024-11-28 02:11:09,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491206657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:09,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:09,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:11:09,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37090467] [2024-11-28 02:11:09,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:09,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:11:09,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:09,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:11:09,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:11:09,443 INFO L87 Difference]: Start difference. First operand 699 states and 919 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:10,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:10,104 INFO L93 Difference]: Finished difference Result 1243 states and 1632 transitions. [2024-11-28 02:11:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:11:10,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-28 02:11:10,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:10,110 INFO L225 Difference]: With dead ends: 1243 [2024-11-28 02:11:10,110 INFO L226 Difference]: Without dead ends: 727 [2024-11-28 02:11:10,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:11:10,113 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 229 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:10,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 308 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:11:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-28 02:11:10,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 689. [2024-11-28 02:11:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 650 states have (on average 1.2846153846153847) internal successors, (835), 650 states have internal predecessors, (835), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:11:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 903 transitions. [2024-11-28 02:11:10,176 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 903 transitions. Word has length 140 [2024-11-28 02:11:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:10,177 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 903 transitions. [2024-11-28 02:11:10,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 903 transitions. [2024-11-28 02:11:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 02:11:10,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:10,179 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:10,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:11:10,181 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:10,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:10,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-11-28 02:11:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:10,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624786960] [2024-11-28 02:11:10,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:10,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:10,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:10,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624786960] [2024-11-28 02:11:10,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624786960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:10,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:10,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:11:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618006643] [2024-11-28 02:11:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:10,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:11:10,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:10,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:11:10,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:11:10,976 INFO L87 Difference]: Start difference. First operand 689 states and 903 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 02:11:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:11,430 INFO L93 Difference]: Finished difference Result 926 states and 1178 transitions. [2024-11-28 02:11:11,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:11:11,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 141 [2024-11-28 02:11:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:11,433 INFO L225 Difference]: With dead ends: 926 [2024-11-28 02:11:11,433 INFO L226 Difference]: Without dead ends: 924 [2024-11-28 02:11:11,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:11:11,434 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 176 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:11,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 933 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:11:11,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-11-28 02:11:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 920. [2024-11-28 02:11:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 853 states have (on average 1.2379835873388043) internal successors, (1056), 855 states have internal predecessors, (1056), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:11,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1172 transitions. [2024-11-28 02:11:11,545 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1172 transitions. Word has length 141 [2024-11-28 02:11:11,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:11,546 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1172 transitions. [2024-11-28 02:11:11,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 02:11:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1172 transitions. [2024-11-28 02:11:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 02:11:11,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:11,548 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:11,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 02:11:11,548 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:11,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-11-28 02:11:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:11,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594880400] [2024-11-28 02:11:11,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:11,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:11,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594880400] [2024-11-28 02:11:11,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594880400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:11,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:11,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:11:11,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449022066] [2024-11-28 02:11:11,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:11,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:11:11,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:11,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:11:11,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:11:11,804 INFO L87 Difference]: Start difference. First operand 920 states and 1172 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:11,990 INFO L93 Difference]: Finished difference Result 1963 states and 2493 transitions. [2024-11-28 02:11:11,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:11:11,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-28 02:11:11,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:11,994 INFO L225 Difference]: With dead ends: 1963 [2024-11-28 02:11:11,994 INFO L226 Difference]: Without dead ends: 1046 [2024-11-28 02:11:11,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:11:11,997 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 39 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:11,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 544 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:11:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-28 02:11:12,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1024. [2024-11-28 02:11:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 957 states have (on average 1.2319749216300941) internal successors, (1179), 959 states have internal predecessors, (1179), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:12,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1295 transitions. [2024-11-28 02:11:12,118 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1295 transitions. Word has length 141 [2024-11-28 02:11:12,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:12,118 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1295 transitions. [2024-11-28 02:11:12,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:12,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1295 transitions. [2024-11-28 02:11:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 02:11:12,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:12,120 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:12,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 02:11:12,121 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:12,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-11-28 02:11:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:12,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447620150] [2024-11-28 02:11:12,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:13,446 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:13,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:13,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447620150] [2024-11-28 02:11:13,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447620150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:13,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:13,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:11:13,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694724096] [2024-11-28 02:11:13,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:13,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:11:13,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:13,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:11:13,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:11:13,447 INFO L87 Difference]: Start difference. First operand 1024 states and 1295 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:14,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:14,173 INFO L93 Difference]: Finished difference Result 2083 states and 2628 transitions. [2024-11-28 02:11:14,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:11:14,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-28 02:11:14,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:14,188 INFO L225 Difference]: With dead ends: 2083 [2024-11-28 02:11:14,188 INFO L226 Difference]: Without dead ends: 1062 [2024-11-28 02:11:14,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:11:14,190 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 217 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:14,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 336 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:11:14,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-28 02:11:14,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 992. [2024-11-28 02:11:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 925 states have (on average 1.2172972972972973) internal successors, (1126), 927 states have internal predecessors, (1126), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:14,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1242 transitions. [2024-11-28 02:11:14,332 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1242 transitions. Word has length 142 [2024-11-28 02:11:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:14,332 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1242 transitions. [2024-11-28 02:11:14,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:11:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1242 transitions. [2024-11-28 02:11:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 02:11:14,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:14,335 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:14,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 02:11:14,335 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:14,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-11-28 02:11:14,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:14,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588924606] [2024-11-28 02:11:14,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:14,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:14,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:14,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588924606] [2024-11-28 02:11:14,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588924606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:14,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:14,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:11:14,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567080658] [2024-11-28 02:11:14,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:14,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:11:14,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:14,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:11:14,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:11:14,578 INFO L87 Difference]: Start difference. First operand 992 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:14,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:14,761 INFO L93 Difference]: Finished difference Result 1761 states and 2221 transitions. [2024-11-28 02:11:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:11:14,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-28 02:11:14,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:14,765 INFO L225 Difference]: With dead ends: 1761 [2024-11-28 02:11:14,765 INFO L226 Difference]: Without dead ends: 699 [2024-11-28 02:11:14,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:11:14,767 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 105 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:14,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 356 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:11:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-28 02:11:14,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 695. [2024-11-28 02:11:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 628 states have (on average 1.1878980891719746) internal successors, (746), 630 states have internal predecessors, (746), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 862 transitions. [2024-11-28 02:11:14,886 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 862 transitions. Word has length 142 [2024-11-28 02:11:14,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:14,886 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 862 transitions. [2024-11-28 02:11:14,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:14,886 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 862 transitions. [2024-11-28 02:11:14,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:11:14,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:14,888 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:14,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 02:11:14,888 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:14,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:14,889 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-11-28 02:11:14,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:14,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65129827] [2024-11-28 02:11:14,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:14,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:15,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65129827] [2024-11-28 02:11:15,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65129827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:15,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:15,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:11:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604912553] [2024-11-28 02:11:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:15,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:11:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:15,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:11:15,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:11:15,109 INFO L87 Difference]: Start difference. First operand 695 states and 862 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:15,283 INFO L93 Difference]: Finished difference Result 1299 states and 1608 transitions. [2024-11-28 02:11:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:11:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 02:11:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:15,286 INFO L225 Difference]: With dead ends: 1299 [2024-11-28 02:11:15,286 INFO L226 Difference]: Without dead ends: 607 [2024-11-28 02:11:15,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:11:15,288 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 59 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:15,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 532 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:11:15,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-28 02:11:15,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 601. [2024-11-28 02:11:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 534 states have (on average 1.1704119850187267) internal successors, (625), 536 states have internal predecessors, (625), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:15,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 741 transitions. [2024-11-28 02:11:15,394 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 741 transitions. Word has length 143 [2024-11-28 02:11:15,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:15,394 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 741 transitions. [2024-11-28 02:11:15,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 741 transitions. [2024-11-28 02:11:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:11:15,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:15,396 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:15,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 02:11:15,397 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:15,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:15,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-11-28 02:11:15,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:15,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806767042] [2024-11-28 02:11:15,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:15,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:15,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:15,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806767042] [2024-11-28 02:11:15,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806767042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:15,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:15,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:11:15,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519566238] [2024-11-28 02:11:15,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:15,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:11:15,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:15,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:11:15,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:11:15,675 INFO L87 Difference]: Start difference. First operand 601 states and 741 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:15,861 INFO L93 Difference]: Finished difference Result 1156 states and 1419 transitions. [2024-11-28 02:11:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:11:15,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:11:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:15,865 INFO L225 Difference]: With dead ends: 1156 [2024-11-28 02:11:15,865 INFO L226 Difference]: Without dead ends: 587 [2024-11-28 02:11:15,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:11:15,866 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 29 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:15,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 453 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:11:15,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-28 02:11:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-11-28 02:11:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 520 states have (on average 1.1596153846153847) internal successors, (603), 522 states have internal predecessors, (603), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 719 transitions. [2024-11-28 02:11:15,983 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 719 transitions. Word has length 144 [2024-11-28 02:11:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:15,984 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 719 transitions. [2024-11-28 02:11:15,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 719 transitions. [2024-11-28 02:11:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:11:15,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:15,985 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:15,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 02:11:15,986 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:15,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-11-28 02:11:15,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:15,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671352889] [2024-11-28 02:11:15,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:15,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:17,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:17,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671352889] [2024-11-28 02:11:17,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671352889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:17,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:17,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 02:11:17,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410110884] [2024-11-28 02:11:17,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:17,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:11:17,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:17,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:11:17,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:11:17,994 INFO L87 Difference]: Start difference. First operand 587 states and 719 transitions. Second operand has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:11:18,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:18,963 INFO L93 Difference]: Finished difference Result 698 states and 849 transitions. [2024-11-28 02:11:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:11:18,963 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 144 [2024-11-28 02:11:18,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:18,966 INFO L225 Difference]: With dead ends: 698 [2024-11-28 02:11:18,966 INFO L226 Difference]: Without dead ends: 696 [2024-11-28 02:11:18,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2024-11-28 02:11:18,969 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 153 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:18,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1361 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:11:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-28 02:11:19,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 655. [2024-11-28 02:11:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 588 states have (on average 1.1581632653061225) internal successors, (681), 590 states have internal predecessors, (681), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:19,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 797 transitions. [2024-11-28 02:11:19,081 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 797 transitions. Word has length 144 [2024-11-28 02:11:19,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:19,082 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 797 transitions. [2024-11-28 02:11:19,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:11:19,082 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 797 transitions. [2024-11-28 02:11:19,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:11:19,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:19,083 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:19,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 02:11:19,084 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:19,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:19,084 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-11-28 02:11:19,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:19,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232533514] [2024-11-28 02:11:19,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:19,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:20,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:20,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232533514] [2024-11-28 02:11:20,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232533514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:20,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:20,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:11:20,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999651326] [2024-11-28 02:11:20,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:20,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:11:20,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:20,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:11:20,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:11:20,839 INFO L87 Difference]: Start difference. First operand 655 states and 797 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:22,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:22,990 INFO L93 Difference]: Finished difference Result 1330 states and 1599 transitions. [2024-11-28 02:11:22,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:11:22,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:11:22,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:22,994 INFO L225 Difference]: With dead ends: 1330 [2024-11-28 02:11:22,995 INFO L226 Difference]: Without dead ends: 827 [2024-11-28 02:11:22,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:11:22,996 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 137 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:22,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 688 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 02:11:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-11-28 02:11:23,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 739. [2024-11-28 02:11:23,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 672 states have (on average 1.162202380952381) internal successors, (781), 674 states have internal predecessors, (781), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 897 transitions. [2024-11-28 02:11:23,129 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 897 transitions. Word has length 144 [2024-11-28 02:11:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:23,129 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 897 transitions. [2024-11-28 02:11:23,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 897 transitions. [2024-11-28 02:11:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:11:23,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:23,131 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:23,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 02:11:23,131 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:23,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:23,132 INFO L85 PathProgramCache]: Analyzing trace with hash -61368391, now seen corresponding path program 1 times [2024-11-28 02:11:23,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:23,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090487686] [2024-11-28 02:11:23,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:23,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:23,371 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:11:23,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:23,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090487686] [2024-11-28 02:11:23,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090487686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:23,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:23,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:11:23,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060806222] [2024-11-28 02:11:23,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:23,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:11:23,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:23,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:11:23,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:11:23,374 INFO L87 Difference]: Start difference. First operand 739 states and 897 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:23,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:23,670 INFO L93 Difference]: Finished difference Result 1614 states and 1916 transitions. [2024-11-28 02:11:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:11:23,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:11:23,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:23,674 INFO L225 Difference]: With dead ends: 1614 [2024-11-28 02:11:23,675 INFO L226 Difference]: Without dead ends: 1027 [2024-11-28 02:11:23,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:11:23,677 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 44 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:23,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 388 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:11:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-28 02:11:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 798. [2024-11-28 02:11:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 731 states have (on average 1.1573187414500683) internal successors, (846), 733 states have internal predecessors, (846), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 02:11:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 962 transitions. [2024-11-28 02:11:23,794 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 962 transitions. Word has length 144 [2024-11-28 02:11:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:23,794 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 962 transitions. [2024-11-28 02:11:23,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:11:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 962 transitions. [2024-11-28 02:11:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:11:23,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:23,796 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:23,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 02:11:23,796 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:23,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:23,797 INFO L85 PathProgramCache]: Analyzing trace with hash -886480517, now seen corresponding path program 1 times [2024-11-28 02:11:23,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:23,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585080362] [2024-11-28 02:11:23,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:23,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat