./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/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_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/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_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/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 710670ca346a21719bd0508939f664ba04d58832b1c8a269a31e5aa376b94261 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:22:12,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:22:12,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:22:12,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:22:12,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:22:12,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:22:12,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:22:12,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:22:12,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:22:12,343 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:22:12,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:22:12,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:22:12,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:22:12,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:22:12,346 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:22:12,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:22:12,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:22:12,348 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:22:12,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:22:12,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:22:12,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:22:12,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:22:12,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:22:12,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:22:12,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:22:12,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:22:12,350 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:22:12,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:22:12,350 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:22:12,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:22:12,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:22:12,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:22:12,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:22:12,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:22:12,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:22:12,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:22:12,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:22:12,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:22:12,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:22:12,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:22:12,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:22:12,353 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_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/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 -> 710670ca346a21719bd0508939f664ba04d58832b1c8a269a31e5aa376b94261 [2024-11-28 05:22:12,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:22:12,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:22:12,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:22:12,802 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:22:12,802 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:22:12,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i [2024-11-28 05:22:16,422 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/data/e383f2559/67eed81168d1441da8b8ac1afaf2bd35/FLAGa13807c4e [2024-11-28 05:22:16,886 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:22:16,886 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i [2024-11-28 05:22:16,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/data/e383f2559/67eed81168d1441da8b8ac1afaf2bd35/FLAGa13807c4e [2024-11-28 05:22:16,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/data/e383f2559/67eed81168d1441da8b8ac1afaf2bd35 [2024-11-28 05:22:16,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:22:16,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:22:16,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:22:16,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:22:16,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:22:16,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:22:16" (1/1) ... [2024-11-28 05:22:16,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26644465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:16, skipping insertion in model container [2024-11-28 05:22:16,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:22:16" (1/1) ... [2024-11-28 05:22:17,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:22:17,265 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_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i[916,929] [2024-11-28 05:22:17,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:22:17,525 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:22:17,545 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_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i[916,929] [2024-11-28 05:22:17,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:22:17,728 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:22:17,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17 WrapperNode [2024-11-28 05:22:17,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:22:17,730 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:22:17,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:22:17,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:22:17,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:17,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:17,903 INFO L138 Inliner]: procedures = 26, calls = 85, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 498 [2024-11-28 05:22:17,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:22:17,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:22:17,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:22:17,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:22:17,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:17,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:17,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:17,984 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:22:17,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:17,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:18,020 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:18,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:18,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:18,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:18,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:18,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:22:18,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:22:18,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:22:18,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:22:18,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (1/1) ... [2024-11-28 05:22:18,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:22:18,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:18,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:18,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:22:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:22:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:22:18,145 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:22:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:22:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:22:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:22:18,355 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:22:18,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:22:19,886 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-28 05:22:19,887 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:22:19,919 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:22:19,919 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:22:19,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:22:19 BoogieIcfgContainer [2024-11-28 05:22:19,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:22:19,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:22:19,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:22:19,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:22:19,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:22:16" (1/3) ... [2024-11-28 05:22:19,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e4401a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:22:19, skipping insertion in model container [2024-11-28 05:22:19,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:17" (2/3) ... [2024-11-28 05:22:19,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e4401a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:22:19, skipping insertion in model container [2024-11-28 05:22:19,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:22:19" (3/3) ... [2024-11-28 05:22:19,943 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-10.i [2024-11-28 05:22:19,965 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:22:19,968 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-10.i that has 2 procedures, 220 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:22:20,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:22:20,070 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;@385468e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:22:20,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:22:20,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 146 states have internal predecessors, (220), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 05:22:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-28 05:22:20,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:20,112 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:20,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:20,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1044740146, now seen corresponding path program 1 times [2024-11-28 05:22:20,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:20,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980104992] [2024-11-28 05:22:20,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:20,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-28 05:22:21,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:21,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980104992] [2024-11-28 05:22:21,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980104992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:22:21,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568131858] [2024-11-28 05:22:21,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:21,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:21,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:21,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:22:21,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:22:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:21,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:22:21,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-28 05:22:21,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:22:21,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568131858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:21,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:22:21,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:22:21,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286776783] [2024-11-28 05:22:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:21,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:22:21,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:21,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:22:21,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:22:21,816 INFO L87 Difference]: Start difference. First operand has 220 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 146 states have internal predecessors, (220), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:22:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:21,893 INFO L93 Difference]: Finished difference Result 432 states and 792 transitions. [2024-11-28 05:22:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:22:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) Word has length 454 [2024-11-28 05:22:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:21,907 INFO L225 Difference]: With dead ends: 432 [2024-11-28 05:22:21,907 INFO L226 Difference]: Without dead ends: 215 [2024-11-28 05:22:21,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 455 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 05:22:21,916 INFO L435 NwaCegarLoop]: 354 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, 354 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 05:22:21,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:22:21,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-28 05:22:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-28 05:22:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 141 states have (on average 1.4893617021276595) internal successors, (210), 141 states have internal predecessors, (210), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 05:22:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 354 transitions. [2024-11-28 05:22:22,013 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 354 transitions. Word has length 454 [2024-11-28 05:22:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:22,014 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 354 transitions. [2024-11-28 05:22:22,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:22:22,014 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 354 transitions. [2024-11-28 05:22:22,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-28 05:22:22,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:22,054 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:22,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:22:22,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57d0ae1-6e15-458d-a38e-2fc2c65d75d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:22,255 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:22,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1391087002, now seen corresponding path program 1 times [2024-11-28 05:22:22,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:22,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385770996] [2024-11-28 05:22:22,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:22,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:22:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:23,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385770996] [2024-11-28 05:22:23,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385770996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:23,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:23,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:22:23,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575186531] [2024-11-28 05:22:23,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:23,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:22:23,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:23,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:22:23,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:23,122 INFO L87 Difference]: Start difference. First operand 215 states and 354 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:23,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:23,285 INFO L93 Difference]: Finished difference Result 552 states and 910 transitions. [2024-11-28 05:22:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:22:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 454 [2024-11-28 05:22:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:23,299 INFO L225 Difference]: With dead ends: 552 [2024-11-28 05:22:23,299 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 05:22:23,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:23,302 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 199 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:23,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 691 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:22:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 05:22:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2024-11-28 05:22:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 232 states have (on average 1.5129310344827587) internal successors, (351), 233 states have internal predecessors, (351), 102 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 05:22:23,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 555 transitions. [2024-11-28 05:22:23,397 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 555 transitions. Word has length 454 [2024-11-28 05:22:23,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:23,402 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 555 transitions. [2024-11-28 05:22:23,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:23,403 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 555 transitions. [2024-11-28 05:22:23,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-28 05:22:23,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:23,421 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:23,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:22:23,421 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:23,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:23,423 INFO L85 PathProgramCache]: Analyzing trace with hash 183449389, now seen corresponding path program 1 times [2024-11-28 05:22:23,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:23,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880374714] [2024-11-28 05:22:23,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:23,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:22:24,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:24,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880374714] [2024-11-28 05:22:24,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880374714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:24,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:24,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:22:24,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832568895] [2024-11-28 05:22:24,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:24,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:22:24,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:24,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:22:24,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:24,178 INFO L87 Difference]: Start difference. First operand 337 states and 555 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:24,347 INFO L93 Difference]: Finished difference Result 914 states and 1504 transitions. [2024-11-28 05:22:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:22:24,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 455 [2024-11-28 05:22:24,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:24,364 INFO L225 Difference]: With dead ends: 914 [2024-11-28 05:22:24,366 INFO L226 Difference]: Without dead ends: 580 [2024-11-28 05:22:24,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:24,369 INFO L435 NwaCegarLoop]: 454 mSDtfsCounter, 211 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:24,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 793 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:22:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-28 05:22:24,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 577. [2024-11-28 05:22:24,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 402 states have (on average 1.5049751243781095) internal successors, (605), 405 states have internal predecessors, (605), 170 states have call successors, (170), 4 states have call predecessors, (170), 4 states have return successors, (170), 167 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-28 05:22:24,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 945 transitions. [2024-11-28 05:22:24,514 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 945 transitions. Word has length 455 [2024-11-28 05:22:24,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:24,518 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 945 transitions. [2024-11-28 05:22:24,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:24,519 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 945 transitions. [2024-11-28 05:22:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-28 05:22:24,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:24,537 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:24,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:22:24,537 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:24,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:24,539 INFO L85 PathProgramCache]: Analyzing trace with hash 206081643, now seen corresponding path program 1 times [2024-11-28 05:22:24,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:24,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180505519] [2024-11-28 05:22:24,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:24,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:22:26,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:26,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180505519] [2024-11-28 05:22:26,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180505519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:26,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:26,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:22:26,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923580193] [2024-11-28 05:22:26,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:26,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:22:26,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:26,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:22:26,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:26,020 INFO L87 Difference]: Start difference. First operand 577 states and 945 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:26,179 INFO L93 Difference]: Finished difference Result 1725 states and 2829 transitions. [2024-11-28 05:22:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:22:26,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 455 [2024-11-28 05:22:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:26,197 INFO L225 Difference]: With dead ends: 1725 [2024-11-28 05:22:26,198 INFO L226 Difference]: Without dead ends: 1151 [2024-11-28 05:22:26,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:26,202 INFO L435 NwaCegarLoop]: 353 mSDtfsCounter, 204 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:26,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 700 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:22:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-11-28 05:22:26,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1145. [2024-11-28 05:22:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 796 states have (on average 1.5) internal successors, (1194), 802 states have internal predecessors, (1194), 340 states have call successors, (340), 8 states have call predecessors, (340), 8 states have return successors, (340), 334 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-28 05:22:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1874 transitions. [2024-11-28 05:22:26,515 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1874 transitions. Word has length 455 [2024-11-28 05:22:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:26,516 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1874 transitions. [2024-11-28 05:22:26,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1874 transitions. [2024-11-28 05:22:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-28 05:22:26,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:26,527 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:26,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:22:26,527 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:26,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash -611566807, now seen corresponding path program 1 times [2024-11-28 05:22:26,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:26,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439679197] [2024-11-28 05:22:26,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:26,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:22:27,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:27,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439679197] [2024-11-28 05:22:27,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439679197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:27,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:27,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:22:27,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395821310] [2024-11-28 05:22:27,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:27,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:22:27,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:27,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:22:27,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:22:27,557 INFO L87 Difference]: Start difference. First operand 1145 states and 1874 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:28,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:28,248 INFO L93 Difference]: Finished difference Result 2920 states and 4792 transitions. [2024-11-28 05:22:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:22:28,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 455 [2024-11-28 05:22:28,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:28,269 INFO L225 Difference]: With dead ends: 2920 [2024-11-28 05:22:28,269 INFO L226 Difference]: Without dead ends: 1778 [2024-11-28 05:22:28,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:22:28,277 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 294 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:28,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1039 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:22:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2024-11-28 05:22:28,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1520. [2024-11-28 05:22:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1097 states have (on average 1.553327256153145) internal successors, (1704), 1103 states have internal predecessors, (1704), 412 states have call successors, (412), 10 states have call predecessors, (412), 10 states have return successors, (412), 406 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-28 05:22:28,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2528 transitions. [2024-11-28 05:22:28,578 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2528 transitions. Word has length 455 [2024-11-28 05:22:28,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:28,579 INFO L471 AbstractCegarLoop]: Abstraction has 1520 states and 2528 transitions. [2024-11-28 05:22:28,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:22:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2528 transitions. [2024-11-28 05:22:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:22:28,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:28,591 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:28,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:22:28,591 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:28,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1350669808, now seen corresponding path program 1 times [2024-11-28 05:22:28,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:28,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630135004] [2024-11-28 05:22:28,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:28,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:23:49,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:49,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630135004] [2024-11-28 05:23:49,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630135004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:49,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:49,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:23:49,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103356683] [2024-11-28 05:23:49,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:49,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:23:49,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:49,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:23:49,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:23:49,957 INFO L87 Difference]: Start difference. First operand 1520 states and 2528 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:23:56,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:56,156 INFO L93 Difference]: Finished difference Result 4754 states and 7590 transitions. [2024-11-28 05:23:56,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:23:56,158 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-28 05:23:56,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:56,192 INFO L225 Difference]: With dead ends: 4754 [2024-11-28 05:23:56,192 INFO L226 Difference]: Without dead ends: 3612 [2024-11-28 05:23:56,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:23:56,201 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 717 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:56,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 2156 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 05:23:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2024-11-28 05:23:56,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 2629. [2024-11-28 05:23:56,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 1841 states have (on average 1.4541010320478) internal successors, (2677), 1854 states have internal predecessors, (2677), 752 states have call successors, (752), 35 states have call predecessors, (752), 35 states have return successors, (752), 739 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-28 05:23:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 4181 transitions. [2024-11-28 05:23:56,651 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 4181 transitions. Word has length 456 [2024-11-28 05:23:56,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:56,652 INFO L471 AbstractCegarLoop]: Abstraction has 2629 states and 4181 transitions. [2024-11-28 05:23:56,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:23:56,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 4181 transitions. [2024-11-28 05:23:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:23:56,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:56,659 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:56,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:23:56,659 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:56,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:56,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1608835246, now seen corresponding path program 1 times [2024-11-28 05:23:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:56,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180042576] [2024-11-28 05:23:56,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:56,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:24:36,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:36,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180042576] [2024-11-28 05:24:36,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180042576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:36,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:36,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 05:24:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518803511] [2024-11-28 05:24:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:36,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:24:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:36,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:24:36,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:24:36,505 INFO L87 Difference]: Start difference. First operand 2629 states and 4181 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-28 05:24:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:45,445 INFO L93 Difference]: Finished difference Result 5270 states and 8289 transitions. [2024-11-28 05:24:45,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:24:45,447 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 456 [2024-11-28 05:24:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:45,476 INFO L225 Difference]: With dead ends: 5270 [2024-11-28 05:24:45,477 INFO L226 Difference]: Without dead ends: 4128 [2024-11-28 05:24:45,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=236, Invalid=820, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:24:45,485 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 1176 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:45,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 3111 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 05:24:45,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2024-11-28 05:24:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 2964. [2024-11-28 05:24:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2175 states have (on average 1.502528735632184) internal successors, (3268), 2187 states have internal predecessors, (3268), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-28 05:24:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 4772 transitions. [2024-11-28 05:24:45,935 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 4772 transitions. Word has length 456 [2024-11-28 05:24:45,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:45,936 INFO L471 AbstractCegarLoop]: Abstraction has 2964 states and 4772 transitions. [2024-11-28 05:24:45,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-28 05:24:45,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 4772 transitions. [2024-11-28 05:24:45,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:24:45,942 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:45,943 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:45,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:24:45,943 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:45,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash -857948240, now seen corresponding path program 1 times [2024-11-28 05:24:45,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:45,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007115201] [2024-11-28 05:24:45,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:45,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:25:19,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:19,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007115201] [2024-11-28 05:25:19,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007115201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:25:19,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:25:19,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:25:19,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183172096] [2024-11-28 05:25:19,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:25:19,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:25:19,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:19,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:25:19,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:25:19,912 INFO L87 Difference]: Start difference. First operand 2964 states and 4772 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:25:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:25:25,741 INFO L93 Difference]: Finished difference Result 4982 states and 7881 transitions. [2024-11-28 05:25:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:25:25,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-28 05:25:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:25:25,767 INFO L225 Difference]: With dead ends: 4982 [2024-11-28 05:25:25,767 INFO L226 Difference]: Without dead ends: 3840 [2024-11-28 05:25:25,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:25:25,774 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 742 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:25:25,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1862 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 05:25:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2024-11-28 05:25:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3004. [2024-11-28 05:25:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 2215 states have (on average 1.5042889390519187) internal successors, (3332), 2227 states have internal predecessors, (3332), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-28 05:25:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 4836 transitions. [2024-11-28 05:25:26,212 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 4836 transitions. Word has length 456 [2024-11-28 05:25:26,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:26,214 INFO L471 AbstractCegarLoop]: Abstraction has 3004 states and 4836 transitions. [2024-11-28 05:25:26,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:25:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 4836 transitions. [2024-11-28 05:25:26,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:25:26,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:26,221 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:25:26,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:25:26,226 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:26,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:26,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1538006610, now seen corresponding path program 1 times [2024-11-28 05:25:26,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:26,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152751550] [2024-11-28 05:25:26,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:26,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:25:41,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:41,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152751550] [2024-11-28 05:25:41,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152751550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:25:41,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:25:41,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 05:25:41,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395994448] [2024-11-28 05:25:41,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:25:41,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 05:25:41,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:41,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:25:41,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:25:41,079 INFO L87 Difference]: Start difference. First operand 3004 states and 4836 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:25:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:25:45,653 INFO L93 Difference]: Finished difference Result 6012 states and 9316 transitions. [2024-11-28 05:25:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:25:45,654 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-28 05:25:45,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:25:45,682 INFO L225 Difference]: With dead ends: 6012 [2024-11-28 05:25:45,682 INFO L226 Difference]: Without dead ends: 4870 [2024-11-28 05:25:45,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:25:45,690 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 724 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:25:45,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 2330 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 05:25:45,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2024-11-28 05:25:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 2988. [2024-11-28 05:25:46,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2199 states have (on average 1.5043201455206912) internal successors, (3308), 2211 states have internal predecessors, (3308), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-28 05:25:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 4812 transitions. [2024-11-28 05:25:46,144 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 4812 transitions. Word has length 456 [2024-11-28 05:25:46,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:46,145 INFO L471 AbstractCegarLoop]: Abstraction has 2988 states and 4812 transitions. [2024-11-28 05:25:46,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:25:46,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 4812 transitions. [2024-11-28 05:25:46,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:25:46,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:46,152 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:25:46,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:25:46,152 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:46,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1009659824, now seen corresponding path program 1 times [2024-11-28 05:25:46,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:46,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348513116] [2024-11-28 05:25:46,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:46,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:26:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:26:12,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:26:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348513116] [2024-11-28 05:26:12,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348513116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:26:12,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:26:12,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 05:26:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389201179] [2024-11-28 05:26:12,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:26:12,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 05:26:12,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:26:12,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:26:12,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:26:12,965 INFO L87 Difference]: Start difference. First operand 2988 states and 4812 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:26:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:26:20,019 INFO L93 Difference]: Finished difference Result 6564 states and 10288 transitions. [2024-11-28 05:26:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:26:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-28 05:26:20,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:26:20,047 INFO L225 Difference]: With dead ends: 6564 [2024-11-28 05:26:20,047 INFO L226 Difference]: Without dead ends: 4026 [2024-11-28 05:26:20,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:26:20,057 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 874 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:26:20,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 2744 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 05:26:20,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2024-11-28 05:26:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 3124. [2024-11-28 05:26:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 2335 states have (on average 1.4955032119914347) internal successors, (3492), 2347 states have internal predecessors, (3492), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-28 05:26:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4996 transitions. [2024-11-28 05:26:20,495 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4996 transitions. Word has length 456 [2024-11-28 05:26:20,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:26:20,500 INFO L471 AbstractCegarLoop]: Abstraction has 3124 states and 4996 transitions. [2024-11-28 05:26:20,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:26:20,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4996 transitions. [2024-11-28 05:26:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:26:20,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:26:20,507 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:26:20,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:26:20,509 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:26:20,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:26:20,510 INFO L85 PathProgramCache]: Analyzing trace with hash -2137182032, now seen corresponding path program 1 times [2024-11-28 05:26:20,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:26:20,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93617994] [2024-11-28 05:26:20,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:26:20,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:26:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:26:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:26:45,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:26:45,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93617994] [2024-11-28 05:26:45,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93617994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:26:45,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:26:45,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:26:45,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68223487] [2024-11-28 05:26:45,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:26:45,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:26:45,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:26:45,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:26:45,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:26:45,351 INFO L87 Difference]: Start difference. First operand 3124 states and 4996 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:26:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:26:47,514 INFO L93 Difference]: Finished difference Result 6286 states and 9909 transitions. [2024-11-28 05:26:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:26:47,516 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-28 05:26:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:26:47,538 INFO L225 Difference]: With dead ends: 6286 [2024-11-28 05:26:47,538 INFO L226 Difference]: Without dead ends: 3612 [2024-11-28 05:26:47,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:26:47,548 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 525 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:26:47,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 2025 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:26:47,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2024-11-28 05:26:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3036. [2024-11-28 05:26:47,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 2247 states have (on average 1.4971072541166) internal successors, (3364), 2259 states have internal predecessors, (3364), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-28 05:26:47,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4868 transitions. [2024-11-28 05:26:47,985 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4868 transitions. Word has length 456 [2024-11-28 05:26:47,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:26:47,986 INFO L471 AbstractCegarLoop]: Abstraction has 3036 states and 4868 transitions. [2024-11-28 05:26:47,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:26:47,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4868 transitions. [2024-11-28 05:26:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:26:47,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:26:47,995 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:26:47,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:26:47,996 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:26:47,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:26:47,997 INFO L85 PathProgramCache]: Analyzing trace with hash -643474898, now seen corresponding path program 1 times [2024-11-28 05:26:47,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:26:47,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538432964] [2024-11-28 05:26:47,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:26:47,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:26:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:29:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:29:05,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:29:05,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538432964] [2024-11-28 05:29:05,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538432964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:29:05,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:29:05,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 05:29:05,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015687898] [2024-11-28 05:29:05,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:29:05,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:29:05,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:29:05,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:29:05,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:29:05,649 INFO L87 Difference]: Start difference. First operand 3036 states and 4868 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2024-11-28 05:29:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:29:23,707 INFO L93 Difference]: Finished difference Result 6762 states and 10597 transitions. [2024-11-28 05:29:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 05:29:23,708 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) Word has length 456 [2024-11-28 05:29:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:29:23,740 INFO L225 Difference]: With dead ends: 6762 [2024-11-28 05:29:23,740 INFO L226 Difference]: Without dead ends: 5620 [2024-11-28 05:29:23,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=335, Invalid=1305, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 05:29:23,749 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 1453 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:29:23,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 3586 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-28 05:29:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2024-11-28 05:29:24,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 4432. [2024-11-28 05:29:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 3269 states have (on average 1.4781278678494953) internal successors, (4832), 3287 states have internal predecessors, (4832), 1092 states have call successors, (1092), 70 states have call predecessors, (1092), 70 states have return successors, (1092), 1074 states have call predecessors, (1092), 1092 states have call successors, (1092) [2024-11-28 05:29:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 7016 transitions. [2024-11-28 05:29:24,529 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 7016 transitions. Word has length 456 [2024-11-28 05:29:24,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:29:24,530 INFO L471 AbstractCegarLoop]: Abstraction has 4432 states and 7016 transitions. [2024-11-28 05:29:24,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2024-11-28 05:29:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 7016 transitions. [2024-11-28 05:29:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:29:24,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:29:24,536 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:29:24,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:29:24,537 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:29:24,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:29:24,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1184708912, now seen corresponding path program 1 times [2024-11-28 05:29:24,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:29:24,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860045163] [2024-11-28 05:29:24,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:29:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:29:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:30:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:30:54,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:30:54,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860045163] [2024-11-28 05:30:54,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860045163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:30:54,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:30:54,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 05:30:54,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335348140] [2024-11-28 05:30:54,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:30:54,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 05:30:54,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:30:54,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:30:54,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:30:54,416 INFO L87 Difference]: Start difference. First operand 4432 states and 7016 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:31:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:31:00,642 INFO L93 Difference]: Finished difference Result 7290 states and 11545 transitions. [2024-11-28 05:31:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:31:00,643 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-28 05:31:00,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:31:00,677 INFO L225 Difference]: With dead ends: 7290 [2024-11-28 05:31:00,677 INFO L226 Difference]: Without dead ends: 6148 [2024-11-28 05:31:00,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:31:00,686 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 841 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:31:00,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 2226 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 05:31:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6148 states. [2024-11-28 05:31:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6148 to 5580. [2024-11-28 05:31:01,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5580 states, 4061 states have (on average 1.4750061561191825) internal successors, (5990), 4085 states have internal predecessors, (5990), 1432 states have call successors, (1432), 86 states have call predecessors, (1432), 86 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-28 05:31:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5580 states to 5580 states and 8854 transitions. [2024-11-28 05:31:01,542 INFO L78 Accepts]: Start accepts. Automaton has 5580 states and 8854 transitions. Word has length 456 [2024-11-28 05:31:01,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:31:01,543 INFO L471 AbstractCegarLoop]: Abstraction has 5580 states and 8854 transitions. [2024-11-28 05:31:01,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:31:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5580 states and 8854 transitions. [2024-11-28 05:31:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:31:01,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:31:01,551 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:01,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:31:01,551 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:31:01,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:31:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash 504650542, now seen corresponding path program 1 times [2024-11-28 05:31:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:31:01,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474611290] [2024-11-28 05:31:01,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:31:01,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:31:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:31:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:31:10,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:31:10,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474611290] [2024-11-28 05:31:10,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474611290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:31:10,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:31:10,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:31:10,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481394640] [2024-11-28 05:31:10,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:31:10,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:31:10,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:31:10,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:31:10,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:31:10,300 INFO L87 Difference]: Start difference. First operand 5580 states and 8854 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:31:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:31:13,959 INFO L93 Difference]: Finished difference Result 8604 states and 13338 transitions. [2024-11-28 05:31:13,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:31:13,960 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-28 05:31:13,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:31:13,992 INFO L225 Difference]: With dead ends: 8604 [2024-11-28 05:31:13,993 INFO L226 Difference]: Without dead ends: 7462 [2024-11-28 05:31:13,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:31:13,999 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 596 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:31:14,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 2419 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 05:31:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7462 states. [2024-11-28 05:31:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7462 to 5780. [2024-11-28 05:31:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5780 states, 4261 states have (on average 1.477118047406712) internal successors, (6294), 4285 states have internal predecessors, (6294), 1432 states have call successors, (1432), 86 states have call predecessors, (1432), 86 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-28 05:31:14,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5780 states to 5780 states and 9158 transitions. [2024-11-28 05:31:14,814 INFO L78 Accepts]: Start accepts. Automaton has 5780 states and 9158 transitions. Word has length 456 [2024-11-28 05:31:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:31:14,815 INFO L471 AbstractCegarLoop]: Abstraction has 5780 states and 9158 transitions. [2024-11-28 05:31:14,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:31:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5780 states and 9158 transitions. [2024-11-28 05:31:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:31:14,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:31:14,822 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:14,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:31:14,822 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:31:14,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:31:14,823 INFO L85 PathProgramCache]: Analyzing trace with hash -385309460, now seen corresponding path program 1 times [2024-11-28 05:31:14,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:31:14,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430613259] [2024-11-28 05:31:14,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:31:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:31:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:32:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:32:28,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:32:28,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430613259] [2024-11-28 05:32:28,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430613259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:32:28,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:32:28,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 05:32:28,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745623473] [2024-11-28 05:32:28,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:32:28,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 05:32:28,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:32:28,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 05:32:28,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:32:28,058 INFO L87 Difference]: Start difference. First operand 5780 states and 9158 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:32:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:32:37,041 INFO L93 Difference]: Finished difference Result 8792 states and 13612 transitions. [2024-11-28 05:32:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:32:37,042 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-28 05:32:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:32:37,080 INFO L225 Difference]: With dead ends: 8792 [2024-11-28 05:32:37,080 INFO L226 Difference]: Without dead ends: 7650 [2024-11-28 05:32:37,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=190, Invalid=740, Unknown=0, NotChecked=0, Total=930 [2024-11-28 05:32:37,089 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 763 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:32:37,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 3591 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 05:32:37,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7650 states. [2024-11-28 05:32:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7650 to 5860. [2024-11-28 05:32:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5860 states, 4333 states have (on average 1.4747288252942534) internal successors, (6390), 4357 states have internal predecessors, (6390), 1432 states have call successors, (1432), 94 states have call predecessors, (1432), 94 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-28 05:32:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5860 states to 5860 states and 9254 transitions. [2024-11-28 05:32:37,994 INFO L78 Accepts]: Start accepts. Automaton has 5860 states and 9254 transitions. Word has length 456 [2024-11-28 05:32:37,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:32:37,995 INFO L471 AbstractCegarLoop]: Abstraction has 5860 states and 9254 transitions. [2024-11-28 05:32:37,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:32:37,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5860 states and 9254 transitions. [2024-11-28 05:32:38,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 05:32:38,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:32:38,000 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:38,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:32:38,001 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:32:38,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:32:38,002 INFO L85 PathProgramCache]: Analyzing trace with hash -984484882, now seen corresponding path program 1 times [2024-11-28 05:32:38,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:32:38,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341703398] [2024-11-28 05:32:38,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:32:38,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:32:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:32:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:32:57,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:32:57,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341703398] [2024-11-28 05:32:57,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341703398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:32:57,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:32:57,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:32:57,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560755468] [2024-11-28 05:32:57,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:32:57,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:32:57,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:32:57,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:32:57,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:32:57,245 INFO L87 Difference]: Start difference. First operand 5860 states and 9254 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:33:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:33:00,039 INFO L93 Difference]: Finished difference Result 11092 states and 17238 transitions. [2024-11-28 05:33:00,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:33:00,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-28 05:33:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:33:00,065 INFO L225 Difference]: With dead ends: 11092 [2024-11-28 05:33:00,065 INFO L226 Difference]: Without dead ends: 7294 [2024-11-28 05:33:00,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:33:00,078 INFO L435 NwaCegarLoop]: 399 mSDtfsCounter, 496 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:33:00,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 2360 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 05:33:00,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2024-11-28 05:33:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 5876. [2024-11-28 05:33:00,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5876 states, 4349 states have (on average 1.4729822947804092) internal successors, (6406), 4373 states have internal predecessors, (6406), 1432 states have call successors, (1432), 94 states have call predecessors, (1432), 94 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-28 05:33:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 9270 transitions. [2024-11-28 05:33:00,898 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 9270 transitions. Word has length 456 [2024-11-28 05:33:00,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:33:00,900 INFO L471 AbstractCegarLoop]: Abstraction has 5876 states and 9270 transitions. [2024-11-28 05:33:00,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-28 05:33:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 9270 transitions. [2024-11-28 05:33:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-28 05:33:00,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:33:00,905 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:33:00,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:33:00,906 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:33:00,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:33:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -533976962, now seen corresponding path program 1 times [2024-11-28 05:33:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:33:00,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368197664] [2024-11-28 05:33:00,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:33:00,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:33:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:34:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:34:07,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:34:07,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368197664] [2024-11-28 05:34:07,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368197664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:34:07,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:34:07,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 05:34:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108674022] [2024-11-28 05:34:07,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:34:07,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:34:07,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:34:07,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:34:07,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:34:07,812 INFO L87 Difference]: Start difference. First operand 5876 states and 9270 transitions. Second operand has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-28 05:34:18,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:34:18,647 INFO L93 Difference]: Finished difference Result 8406 states and 13019 transitions. [2024-11-28 05:34:18,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:34:18,648 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 457 [2024-11-28 05:34:18,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:34:18,681 INFO L225 Difference]: With dead ends: 8406 [2024-11-28 05:34:18,682 INFO L226 Difference]: Without dead ends: 7264 [2024-11-28 05:34:18,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 05:34:18,690 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 1316 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:34:18,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 3238 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 05:34:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7264 states. [2024-11-28 05:34:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7264 to 5972. [2024-11-28 05:34:19,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5972 states, 4437 states have (on average 1.4690105927428443) internal successors, (6518), 4461 states have internal predecessors, (6518), 1432 states have call successors, (1432), 102 states have call predecessors, (1432), 102 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-28 05:34:19,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 9382 transitions. [2024-11-28 05:34:19,592 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 9382 transitions. Word has length 457 [2024-11-28 05:34:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:34:19,593 INFO L471 AbstractCegarLoop]: Abstraction has 5972 states and 9382 transitions. [2024-11-28 05:34:19,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-28 05:34:19,593 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 9382 transitions. [2024-11-28 05:34:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-28 05:34:19,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:34:19,600 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:34:19,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:34:19,600 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:34:19,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:34:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash 305146300, now seen corresponding path program 1 times [2024-11-28 05:34:19,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:34:19,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15825760] [2024-11-28 05:34:19,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:34:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:34:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:35:34,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:35:34,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:35:34,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15825760] [2024-11-28 05:35:34,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15825760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:35:34,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:35:34,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 05:35:34,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516887843] [2024-11-28 05:35:34,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:35:34,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 05:35:34,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:35:34,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 05:35:34,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:35:34,410 INFO L87 Difference]: Start difference. First operand 5972 states and 9382 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:35:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:35:40,688 INFO L93 Difference]: Finished difference Result 8660 states and 13335 transitions. [2024-11-28 05:35:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:35:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 457 [2024-11-28 05:35:40,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:35:40,723 INFO L225 Difference]: With dead ends: 8660 [2024-11-28 05:35:40,723 INFO L226 Difference]: Without dead ends: 7518 [2024-11-28 05:35:40,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2024-11-28 05:35:40,732 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 748 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:35:40,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 2964 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 05:35:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2024-11-28 05:35:41,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 6016. [2024-11-28 05:35:41,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6016 states, 4480 states have (on average 1.4698660714285714) internal successors, (6585), 4504 states have internal predecessors, (6585), 1432 states have call successors, (1432), 103 states have call predecessors, (1432), 103 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-28 05:35:41,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6016 states to 6016 states and 9449 transitions. [2024-11-28 05:35:41,586 INFO L78 Accepts]: Start accepts. Automaton has 6016 states and 9449 transitions. Word has length 457 [2024-11-28 05:35:41,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:35:41,587 INFO L471 AbstractCegarLoop]: Abstraction has 6016 states and 9449 transitions. [2024-11-28 05:35:41,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-28 05:35:41,587 INFO L276 IsEmpty]: Start isEmpty. Operand 6016 states and 9449 transitions. [2024-11-28 05:35:41,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-28 05:35:41,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:35:41,593 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:41,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:35:41,593 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:35:41,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:35:41,594 INFO L85 PathProgramCache]: Analyzing trace with hash 698173310, now seen corresponding path program 1 times [2024-11-28 05:35:41,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:35:41,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303807886] [2024-11-28 05:35:41,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:35:41,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:35:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:36:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-28 05:36:05,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:36:05,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303807886] [2024-11-28 05:36:05,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303807886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:36:05,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:36:05,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 05:36:05,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650523636] [2024-11-28 05:36:05,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:36:05,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 05:36:05,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:36:05,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 05:36:05,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:36:05,542 INFO L87 Difference]: Start difference. First operand 6016 states and 9449 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72)