./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-4.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_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/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_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/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_0fe3b345-685b-4c5c-9c32-13bd11a375a7/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 9ad605ba3387c62123a16fbeee0037932d8e75059dce8ef1a0c0c471170abc9b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:56:43,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:56:43,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:56:43,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:56:43,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:56:43,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:56:43,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:56:43,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:56:43,812 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:56:43,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:56:43,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:56:43,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:56:43,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:56:43,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:56:43,814 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:56:43,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:56:43,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:56:43,815 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:56:43,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:56:43,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:56:43,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:56:43,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:56:43,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:56:43,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:56:43,816 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:56:43,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:56:43,816 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:56:43,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:56:43,816 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:56:43,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:43,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:43,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:43,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:43,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:56:43,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:43,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:43,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:43,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:43,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:56:43,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:56:43,820 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_0fe3b345-685b-4c5c-9c32-13bd11a375a7/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 -> 9ad605ba3387c62123a16fbeee0037932d8e75059dce8ef1a0c0c471170abc9b [2024-11-28 02:56:44,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:56:44,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:56:44,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:56:44,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:56:44,172 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:56:44,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-4.i [2024-11-28 02:56:47,364 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/data/dc03f1885/55eeb4e204534514a1adc8b963720eed/FLAGe938e5318 [2024-11-28 02:56:47,818 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:56:47,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-4.i [2024-11-28 02:56:47,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/data/dc03f1885/55eeb4e204534514a1adc8b963720eed/FLAGe938e5318 [2024-11-28 02:56:47,933 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/data/dc03f1885/55eeb4e204534514a1adc8b963720eed [2024-11-28 02:56:47,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:56:47,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:56:47,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:47,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:56:47,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:56:47,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:47" (1/1) ... [2024-11-28 02:56:47,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1520c739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47, skipping insertion in model container [2024-11-28 02:56:47,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:47" (1/1) ... [2024-11-28 02:56:48,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:56:48,184 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_0fe3b345-685b-4c5c-9c32-13bd11a375a7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-4.i[915,928] [2024-11-28 02:56:48,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:48,459 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:56:48,474 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_0fe3b345-685b-4c5c-9c32-13bd11a375a7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-4.i[915,928] [2024-11-28 02:56:48,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:48,586 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:56:48,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48 WrapperNode [2024-11-28 02:56:48,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:48,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:48,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:56:48,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:56:48,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,726 INFO L138 Inliner]: procedures = 26, calls = 94, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 717 [2024-11-28 02:56:48,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:48,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:56:48,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:56:48,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:56:48,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,803 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 02:56:48,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,835 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:56:48,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:56:48,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:56:48,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:56:48,934 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (1/1) ... [2024-11-28 02:56:48,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:48,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:48,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:48,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:56:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:56:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:56:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:56:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:56:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:56:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:56:49,183 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:56:49,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:56:50,933 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-28 02:56:50,933 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:56:50,964 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:56:50,964 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:56:50,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:50 BoogieIcfgContainer [2024-11-28 02:56:50,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:56:50,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:56:50,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:56:50,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:56:50,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:47" (1/3) ... [2024-11-28 02:56:50,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110711b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:50, skipping insertion in model container [2024-11-28 02:56:50,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:48" (2/3) ... [2024-11-28 02:56:50,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110711b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:50, skipping insertion in model container [2024-11-28 02:56:50,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:50" (3/3) ... [2024-11-28 02:56:50,983 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-4.i [2024-11-28 02:56:51,004 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:56:51,007 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-4.i that has 2 procedures, 290 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:56:51,093 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:56:51,110 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;@56e1dd91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:56:51,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:56:51,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 206 states have (on average 1.6116504854368932) internal successors, (332), 207 states have internal predecessors, (332), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 02:56:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-11-28 02:56:51,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:51,148 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:51,149 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:51,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:51,155 INFO L85 PathProgramCache]: Analyzing trace with hash -435900025, now seen corresponding path program 1 times [2024-11-28 02:56:51,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:51,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982332050] [2024-11-28 02:56:51,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:51,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 12800 trivial. 0 not checked. [2024-11-28 02:56:52,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:52,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982332050] [2024-11-28 02:56:52,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982332050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:52,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755592681] [2024-11-28 02:56:52,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:52,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:52,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:52,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:52,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:56:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:52,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:56:52,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:52,802 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 12800 trivial. 0 not checked. [2024-11-28 02:56:52,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:56:52,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755592681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:52,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:56:52,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:56:52,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262256278] [2024-11-28 02:56:52,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:52,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:56:52,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:52,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:56:52,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:56:52,839 INFO L87 Difference]: Start difference. First operand has 290 states, 206 states have (on average 1.6116504854368932) internal successors, (332), 207 states have internal predecessors, (332), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) [2024-11-28 02:56:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:52,911 INFO L93 Difference]: Finished difference Result 572 states and 1061 transitions. [2024-11-28 02:56:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:56:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) Word has length 548 [2024-11-28 02:56:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:52,926 INFO L225 Difference]: With dead ends: 572 [2024-11-28 02:56:52,926 INFO L226 Difference]: Without dead ends: 285 [2024-11-28 02:56:52,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:56:52,939 INFO L435 NwaCegarLoop]: 482 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, 482 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:52,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:56:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-28 02:56:53,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-28 02:56:53,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 202 states have (on average 1.5841584158415842) internal successors, (320), 202 states have internal predecessors, (320), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 02:56:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 482 transitions. [2024-11-28 02:56:53,042 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 482 transitions. Word has length 548 [2024-11-28 02:56:53,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:53,042 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 482 transitions. [2024-11-28 02:56:53,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) [2024-11-28 02:56:53,043 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 482 transitions. [2024-11-28 02:56:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-28 02:56:53,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:53,072 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:53,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:56:53,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe3b345-685b-4c5c-9c32-13bd11a375a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:56:53,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:53,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:53,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1900792603, now seen corresponding path program 1 times [2024-11-28 02:56:53,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:53,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954768053] [2024-11-28 02:56:53,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:53,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:54,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:56:54,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:54,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954768053] [2024-11-28 02:56:54,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954768053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:54,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:54,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:56:54,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638588397] [2024-11-28 02:56:54,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:54,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:54,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:54,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:54,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:56:54,265 INFO L87 Difference]: Start difference. First operand 285 states and 482 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:54,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:54,412 INFO L93 Difference]: Finished difference Result 761 states and 1294 transitions. [2024-11-28 02:56:54,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:54,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 549 [2024-11-28 02:56:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:54,428 INFO L225 Difference]: With dead ends: 761 [2024-11-28 02:56:54,428 INFO L226 Difference]: Without dead ends: 479 [2024-11-28 02:56:54,429 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 02:56:54,430 INFO L435 NwaCegarLoop]: 804 mSDtfsCounter, 332 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:54,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1264 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:56:54,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-28 02:56:54,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 476. [2024-11-28 02:56:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 361 states have (on average 1.6177285318559558) internal successors, (584), 362 states have internal predecessors, (584), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-28 02:56:54,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 808 transitions. [2024-11-28 02:56:54,531 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 808 transitions. Word has length 549 [2024-11-28 02:56:54,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:54,533 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 808 transitions. [2024-11-28 02:56:54,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:54,533 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 808 transitions. [2024-11-28 02:56:54,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-28 02:56:54,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:54,547 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:54,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:56:54,548 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:54,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:54,549 INFO L85 PathProgramCache]: Analyzing trace with hash 453592679, now seen corresponding path program 1 times [2024-11-28 02:56:54,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:54,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147827944] [2024-11-28 02:56:54,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:54,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:56:55,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:55,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147827944] [2024-11-28 02:56:55,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147827944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:55,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:55,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:56:55,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868282531] [2024-11-28 02:56:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:55,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:55,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:55,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:55,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:56:55,055 INFO L87 Difference]: Start difference. First operand 476 states and 808 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:55,199 INFO L93 Difference]: Finished difference Result 1322 states and 2247 transitions. [2024-11-28 02:56:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:55,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 549 [2024-11-28 02:56:55,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:55,208 INFO L225 Difference]: With dead ends: 1322 [2024-11-28 02:56:55,208 INFO L226 Difference]: Without dead ends: 849 [2024-11-28 02:56:55,210 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 02:56:55,211 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 307 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:55,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1032 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:56:55,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-28 02:56:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 846. [2024-11-28 02:56:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 661 states have (on average 1.6096822995461422) internal successors, (1064), 664 states have internal predecessors, (1064), 180 states have call successors, (180), 4 states have call predecessors, (180), 4 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-28 02:56:55,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1424 transitions. [2024-11-28 02:56:55,306 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1424 transitions. Word has length 549 [2024-11-28 02:56:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:55,308 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1424 transitions. [2024-11-28 02:56:55,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:55,308 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1424 transitions. [2024-11-28 02:56:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-28 02:56:55,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:55,322 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:55,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:56:55,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:55,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash -785007961, now seen corresponding path program 1 times [2024-11-28 02:56:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:55,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408605857] [2024-11-28 02:56:55,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:55,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:56:55,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:55,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408605857] [2024-11-28 02:56:55,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408605857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:55,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:55,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:56:55,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094459013] [2024-11-28 02:56:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:55,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:55,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:55,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:55,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:56:55,766 INFO L87 Difference]: Start difference. First operand 846 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:55,896 INFO L93 Difference]: Finished difference Result 2504 states and 4216 transitions. [2024-11-28 02:56:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 549 [2024-11-28 02:56:55,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:55,909 INFO L225 Difference]: With dead ends: 2504 [2024-11-28 02:56:55,909 INFO L226 Difference]: Without dead ends: 1661 [2024-11-28 02:56:55,912 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 02:56:55,913 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 453 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:55,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1013 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:56:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2024-11-28 02:56:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 984. [2024-11-28 02:56:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 799 states have (on average 1.639549436795995) internal successors, (1310), 802 states have internal predecessors, (1310), 180 states have call successors, (180), 4 states have call predecessors, (180), 4 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-28 02:56:56,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1670 transitions. [2024-11-28 02:56:56,034 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1670 transitions. Word has length 549 [2024-11-28 02:56:56,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:56,036 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1670 transitions. [2024-11-28 02:56:56,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1670 transitions. [2024-11-28 02:56:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-28 02:56:56,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:56,043 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:56,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:56:56,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:56,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1551192753, now seen corresponding path program 1 times [2024-11-28 02:56:56,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:56,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866088128] [2024-11-28 02:56:56,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:56,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:56,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:56:56,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:56,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866088128] [2024-11-28 02:56:56,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866088128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:56,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:56,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:56:56,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678303445] [2024-11-28 02:56:56,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:56,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:56,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:56,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:56,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:56:56,457 INFO L87 Difference]: Start difference. First operand 984 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:56,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:56,600 INFO L93 Difference]: Finished difference Result 1977 states and 3346 transitions. [2024-11-28 02:56:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:56,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 550 [2024-11-28 02:56:56,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:56,611 INFO L225 Difference]: With dead ends: 1977 [2024-11-28 02:56:56,611 INFO L226 Difference]: Without dead ends: 996 [2024-11-28 02:56:56,614 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 02:56:56,616 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 291 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:56,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 939 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:56:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2024-11-28 02:56:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 670. [2024-11-28 02:56:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 547 states have (on average 1.6435100548446069) internal successors, (899), 548 states have internal predecessors, (899), 118 states have call successors, (118), 4 states have call predecessors, (118), 4 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 02:56:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1135 transitions. [2024-11-28 02:56:56,675 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1135 transitions. Word has length 550 [2024-11-28 02:56:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:56,676 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 1135 transitions. [2024-11-28 02:56:56,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1135 transitions. [2024-11-28 02:56:56,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-28 02:56:56,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:56,685 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:56,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:56:56,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:56,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:56,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1535674035, now seen corresponding path program 1 times [2024-11-28 02:56:56,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:56,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711863627] [2024-11-28 02:56:56,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:56,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:56:57,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:57,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711863627] [2024-11-28 02:56:57,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711863627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:57,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:57,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:56:57,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344769239] [2024-11-28 02:56:57,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:57,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:57,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:57,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:57,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:56:57,065 INFO L87 Difference]: Start difference. First operand 670 states and 1135 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:57,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:57,198 INFO L93 Difference]: Finished difference Result 2004 states and 3399 transitions. [2024-11-28 02:56:57,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:57,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 550 [2024-11-28 02:56:57,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:57,210 INFO L225 Difference]: With dead ends: 2004 [2024-11-28 02:56:57,210 INFO L226 Difference]: Without dead ends: 1337 [2024-11-28 02:56:57,213 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 02:56:57,213 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 469 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:57,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 1021 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:56:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2024-11-28 02:56:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1335. [2024-11-28 02:56:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1090 states have (on average 1.6403669724770642) internal successors, (1788), 1092 states have internal predecessors, (1788), 236 states have call successors, (236), 8 states have call predecessors, (236), 8 states have return successors, (236), 234 states have call predecessors, (236), 236 states have call successors, (236) [2024-11-28 02:56:57,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 2260 transitions. [2024-11-28 02:56:57,341 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 2260 transitions. Word has length 550 [2024-11-28 02:56:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:57,343 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 2260 transitions. [2024-11-28 02:56:57,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 2260 transitions. [2024-11-28 02:56:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-28 02:56:57,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:57,350 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:57,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:56:57,350 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:57,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1316819317, now seen corresponding path program 1 times [2024-11-28 02:56:57,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:57,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200566376] [2024-11-28 02:56:57,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:57,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:56:58,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:58,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200566376] [2024-11-28 02:56:58,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200566376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:58,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:58,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:56:58,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737774520] [2024-11-28 02:56:58,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:58,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:56:58,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:58,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:56:58,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:56:58,075 INFO L87 Difference]: Start difference. First operand 1335 states and 2260 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:58,776 INFO L93 Difference]: Finished difference Result 5683 states and 9564 transitions. [2024-11-28 02:56:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:56:58,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 550 [2024-11-28 02:56:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:58,809 INFO L225 Difference]: With dead ends: 5683 [2024-11-28 02:56:58,809 INFO L226 Difference]: Without dead ends: 4351 [2024-11-28 02:56:58,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:58,815 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 948 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:58,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 1755 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:56:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4351 states. [2024-11-28 02:56:59,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4351 to 4341. [2024-11-28 02:56:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4341 states, 3504 states have (on average 1.615296803652968) internal successors, (5660), 3516 states have internal predecessors, (5660), 804 states have call successors, (804), 32 states have call predecessors, (804), 32 states have return successors, (804), 792 states have call predecessors, (804), 804 states have call successors, (804) [2024-11-28 02:56:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4341 states to 4341 states and 7268 transitions. [2024-11-28 02:56:59,243 INFO L78 Accepts]: Start accepts. Automaton has 4341 states and 7268 transitions. Word has length 550 [2024-11-28 02:56:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:59,245 INFO L471 AbstractCegarLoop]: Abstraction has 4341 states and 7268 transitions. [2024-11-28 02:56:59,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:56:59,245 INFO L276 IsEmpty]: Start isEmpty. Operand 4341 states and 7268 transitions. [2024-11-28 02:56:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:56:59,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:59,254 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:59,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:56:59,254 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:56:59,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash 667365673, now seen corresponding path program 1 times [2024-11-28 02:56:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:59,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413546468] [2024-11-28 02:56:59,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:56:59,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:59,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413546468] [2024-11-28 02:56:59,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413546468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:59,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:59,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:56:59,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689827476] [2024-11-28 02:56:59,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:59,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:56:59,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:59,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:56:59,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:56:59,863 INFO L87 Difference]: Start difference. First operand 4341 states and 7268 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:00,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:00,837 INFO L93 Difference]: Finished difference Result 9971 states and 16659 transitions. [2024-11-28 02:57:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:57:00,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 551 [2024-11-28 02:57:00,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:00,871 INFO L225 Difference]: With dead ends: 9971 [2024-11-28 02:57:00,871 INFO L226 Difference]: Without dead ends: 5633 [2024-11-28 02:57:00,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:57:00,885 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 641 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:00,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1507 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:57:00,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2024-11-28 02:57:01,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 4341. [2024-11-28 02:57:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4341 states, 3504 states have (on average 1.6130136986301369) internal successors, (5652), 3516 states have internal predecessors, (5652), 804 states have call successors, (804), 32 states have call predecessors, (804), 32 states have return successors, (804), 792 states have call predecessors, (804), 804 states have call successors, (804) [2024-11-28 02:57:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4341 states to 4341 states and 7260 transitions. [2024-11-28 02:57:01,277 INFO L78 Accepts]: Start accepts. Automaton has 4341 states and 7260 transitions. Word has length 551 [2024-11-28 02:57:01,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:01,278 INFO L471 AbstractCegarLoop]: Abstraction has 4341 states and 7260 transitions. [2024-11-28 02:57:01,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4341 states and 7260 transitions. [2024-11-28 02:57:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:57:01,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:01,287 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:01,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:57:01,288 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:01,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash 249969067, now seen corresponding path program 1 times [2024-11-28 02:57:01,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:01,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916934759] [2024-11-28 02:57:01,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:01,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:57:02,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:02,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916934759] [2024-11-28 02:57:02,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916934759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:02,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:02,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:57:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978913259] [2024-11-28 02:57:02,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:02,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:57:02,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:02,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:57:02,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:57:02,157 INFO L87 Difference]: Start difference. First operand 4341 states and 7260 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:03,942 INFO L93 Difference]: Finished difference Result 17183 states and 28743 transitions. [2024-11-28 02:57:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:57:03,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 551 [2024-11-28 02:57:03,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:04,043 INFO L225 Difference]: With dead ends: 17183 [2024-11-28 02:57:04,044 INFO L226 Difference]: Without dead ends: 12845 [2024-11-28 02:57:04,059 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 02:57:04,060 INFO L435 NwaCegarLoop]: 730 mSDtfsCounter, 821 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:04,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1685 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:57:04,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12845 states. [2024-11-28 02:57:04,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12845 to 9061. [2024-11-28 02:57:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9061 states, 7388 states have (on average 1.623714131023281) internal successors, (11996), 7412 states have internal predecessors, (11996), 1608 states have call successors, (1608), 64 states have call predecessors, (1608), 64 states have return successors, (1608), 1584 states have call predecessors, (1608), 1608 states have call successors, (1608) [2024-11-28 02:57:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9061 states to 9061 states and 15212 transitions. [2024-11-28 02:57:05,051 INFO L78 Accepts]: Start accepts. Automaton has 9061 states and 15212 transitions. Word has length 551 [2024-11-28 02:57:05,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:05,052 INFO L471 AbstractCegarLoop]: Abstraction has 9061 states and 15212 transitions. [2024-11-28 02:57:05,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 9061 states and 15212 transitions. [2024-11-28 02:57:05,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:57:05,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:05,065 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:05,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:57:05,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:05,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash -481998359, now seen corresponding path program 1 times [2024-11-28 02:57:05,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:05,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712883028] [2024-11-28 02:57:05,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:05,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:57:05,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:05,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712883028] [2024-11-28 02:57:05,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712883028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:05,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:05,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:57:05,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593088569] [2024-11-28 02:57:05,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:05,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:57:05,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:05,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:57:05,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:05,714 INFO L87 Difference]: Start difference. First operand 9061 states and 15212 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:06,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:06,307 INFO L93 Difference]: Finished difference Result 18119 states and 30421 transitions. [2024-11-28 02:57:06,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:57:06,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 551 [2024-11-28 02:57:06,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:06,350 INFO L225 Difference]: With dead ends: 18119 [2024-11-28 02:57:06,350 INFO L226 Difference]: Without dead ends: 9061 [2024-11-28 02:57:06,370 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 02:57:06,371 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 473 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:06,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:57:06,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9061 states. [2024-11-28 02:57:07,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9061 to 9061. [2024-11-28 02:57:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9061 states, 7388 states have (on average 1.6193827828911749) internal successors, (11964), 7412 states have internal predecessors, (11964), 1608 states have call successors, (1608), 64 states have call predecessors, (1608), 64 states have return successors, (1608), 1584 states have call predecessors, (1608), 1608 states have call successors, (1608) [2024-11-28 02:57:07,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9061 states to 9061 states and 15180 transitions. [2024-11-28 02:57:07,165 INFO L78 Accepts]: Start accepts. Automaton has 9061 states and 15180 transitions. Word has length 551 [2024-11-28 02:57:07,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:07,166 INFO L471 AbstractCegarLoop]: Abstraction has 9061 states and 15180 transitions. [2024-11-28 02:57:07,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:07,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9061 states and 15180 transitions. [2024-11-28 02:57:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:57:07,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:07,184 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:07,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:57:07,184 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:07,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1818824231, now seen corresponding path program 1 times [2024-11-28 02:57:07,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:07,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904555126] [2024-11-28 02:57:07,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:57:08,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904555126] [2024-11-28 02:57:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904555126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:08,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:08,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:57:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348913977] [2024-11-28 02:57:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:08,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:57:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:08,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:57:08,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:57:08,826 INFO L87 Difference]: Start difference. First operand 9061 states and 15180 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:10,319 INFO L93 Difference]: Finished difference Result 23661 states and 39224 transitions. [2024-11-28 02:57:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:57:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 551 [2024-11-28 02:57:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:10,380 INFO L225 Difference]: With dead ends: 23661 [2024-11-28 02:57:10,380 INFO L226 Difference]: Without dead ends: 14603 [2024-11-28 02:57:10,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:57:10,404 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 850 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:10,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1675 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:57:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14603 states. [2024-11-28 02:57:11,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14603 to 14581. [2024-11-28 02:57:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14581 states, 11548 states have (on average 1.57499134049186) internal successors, (18188), 11604 states have internal predecessors, (18188), 2904 states have call successors, (2904), 128 states have call predecessors, (2904), 128 states have return successors, (2904), 2848 states have call predecessors, (2904), 2904 states have call successors, (2904) [2024-11-28 02:57:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14581 states to 14581 states and 23996 transitions. [2024-11-28 02:57:11,767 INFO L78 Accepts]: Start accepts. Automaton has 14581 states and 23996 transitions. Word has length 551 [2024-11-28 02:57:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:11,768 INFO L471 AbstractCegarLoop]: Abstraction has 14581 states and 23996 transitions. [2024-11-28 02:57:11,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 14581 states and 23996 transitions. [2024-11-28 02:57:11,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:57:11,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:11,785 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:11,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:57:11,786 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:11,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2111552296, now seen corresponding path program 1 times [2024-11-28 02:57:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:11,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217567356] [2024-11-28 02:57:11,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:11,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:57:17,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:17,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217567356] [2024-11-28 02:57:17,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217567356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:17,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:17,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 02:57:17,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491928453] [2024-11-28 02:57:17,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:17,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:57:17,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:17,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:57:17,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:57:17,770 INFO L87 Difference]: Start difference. First operand 14581 states and 23996 transitions. Second operand has 18 states, 18 states have (on average 8.277777777777779) internal successors, (149), 18 states have internal predecessors, (149), 4 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-11-28 02:57:35,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:35,970 INFO L93 Difference]: Finished difference Result 67456 states and 110751 transitions. [2024-11-28 02:57:35,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:57:35,971 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.277777777777779) internal successors, (149), 18 states have internal predecessors, (149), 4 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) Word has length 551 [2024-11-28 02:57:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:36,189 INFO L225 Difference]: With dead ends: 67456 [2024-11-28 02:57:36,190 INFO L226 Difference]: Without dead ends: 52702 [2024-11-28 02:57:36,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=255, Invalid=615, Unknown=0, NotChecked=0, Total=870 [2024-11-28 02:57:36,244 INFO L435 NwaCegarLoop]: 789 mSDtfsCounter, 6951 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 3602 mSolverCounterSat, 1605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6951 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 5207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1605 IncrementalHoareTripleChecker+Valid, 3602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:36,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6951 Valid, 4511 Invalid, 5207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1605 Valid, 3602 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-28 02:57:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52702 states. [2024-11-28 02:57:40,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52702 to 32771. [2024-11-28 02:57:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32771 states, 26798 states have (on average 1.5931785954175686) internal successors, (42694), 26930 states have internal predecessors, (42694), 5716 states have call successors, (5716), 256 states have call predecessors, (5716), 256 states have return successors, (5716), 5584 states have call predecessors, (5716), 5716 states have call successors, (5716) [2024-11-28 02:57:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32771 states to 32771 states and 54126 transitions. [2024-11-28 02:57:40,503 INFO L78 Accepts]: Start accepts. Automaton has 32771 states and 54126 transitions. Word has length 551 [2024-11-28 02:57:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:40,505 INFO L471 AbstractCegarLoop]: Abstraction has 32771 states and 54126 transitions. [2024-11-28 02:57:40,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.277777777777779) internal successors, (149), 18 states have internal predecessors, (149), 4 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-11-28 02:57:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 32771 states and 54126 transitions. [2024-11-28 02:57:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:57:40,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:40,553 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:40,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:57:40,554 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:40,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:40,555 INFO L85 PathProgramCache]: Analyzing trace with hash -724766886, now seen corresponding path program 1 times [2024-11-28 02:57:40,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:40,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051333846] [2024-11-28 02:57:40,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:40,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:57:41,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051333846] [2024-11-28 02:57:41,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051333846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:41,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:41,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:57:41,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649971314] [2024-11-28 02:57:41,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:41,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:57:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:41,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:57:41,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:41,400 INFO L87 Difference]: Start difference. First operand 32771 states and 54126 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:45,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:45,632 INFO L93 Difference]: Finished difference Result 98259 states and 162292 transitions. [2024-11-28 02:57:45,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:57:45,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 551 [2024-11-28 02:57:45,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:45,899 INFO L225 Difference]: With dead ends: 98259 [2024-11-28 02:57:45,899 INFO L226 Difference]: Without dead ends: 65491 [2024-11-28 02:57:45,967 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 02:57:45,967 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 285 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:45,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 964 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:57:46,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65491 states. [2024-11-28 02:57:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65491 to 65489. [2024-11-28 02:57:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65489 states, 53544 states have (on average 1.5904676527715524) internal successors, (85160), 53808 states have internal predecessors, (85160), 11432 states have call successors, (11432), 512 states have call predecessors, (11432), 512 states have return successors, (11432), 11168 states have call predecessors, (11432), 11432 states have call successors, (11432) [2024-11-28 02:57:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65489 states to 65489 states and 108024 transitions. [2024-11-28 02:57:52,793 INFO L78 Accepts]: Start accepts. Automaton has 65489 states and 108024 transitions. Word has length 551 [2024-11-28 02:57:52,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:52,798 INFO L471 AbstractCegarLoop]: Abstraction has 65489 states and 108024 transitions. [2024-11-28 02:57:52,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:57:52,798 INFO L276 IsEmpty]: Start isEmpty. Operand 65489 states and 108024 transitions. [2024-11-28 02:57:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:57:52,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:52,897 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:52,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:57:52,897 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:52,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:52,898 INFO L85 PathProgramCache]: Analyzing trace with hash -797153444, now seen corresponding path program 1 times [2024-11-28 02:57:52,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:52,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154884334] [2024-11-28 02:57:52,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:52,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:57:54,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:54,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154884334] [2024-11-28 02:57:54,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154884334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:54,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:54,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:57:54,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266131517] [2024-11-28 02:57:54,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:54,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:57:54,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:54,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:57:54,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:57:54,035 INFO L87 Difference]: Start difference. First operand 65489 states and 108024 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:58:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:03,114 INFO L93 Difference]: Finished difference Result 196717 states and 324578 transitions. [2024-11-28 02:58:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:58:03,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 551 [2024-11-28 02:58:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:03,569 INFO L225 Difference]: With dead ends: 196717 [2024-11-28 02:58:03,569 INFO L226 Difference]: Without dead ends: 131231 [2024-11-28 02:58:03,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:58:03,685 INFO L435 NwaCegarLoop]: 478 mSDtfsCounter, 306 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:03,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1259 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:58:03,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131231 states. [2024-11-28 02:58:14,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131231 to 131229. [2024-11-28 02:58:14,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131229 states, 107340 states have (on average 1.5866964784795976) internal successors, (170316), 107868 states have internal predecessors, (170316), 22864 states have call successors, (22864), 1024 states have call predecessors, (22864), 1024 states have return successors, (22864), 22336 states have call predecessors, (22864), 22864 states have call successors, (22864) [2024-11-28 02:58:15,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131229 states to 131229 states and 216044 transitions. [2024-11-28 02:58:15,508 INFO L78 Accepts]: Start accepts. Automaton has 131229 states and 216044 transitions. Word has length 551 [2024-11-28 02:58:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:15,509 INFO L471 AbstractCegarLoop]: Abstraction has 131229 states and 216044 transitions. [2024-11-28 02:58:15,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2024-11-28 02:58:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 131229 states and 216044 transitions. [2024-11-28 02:58:15,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-28 02:58:15,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:15,586 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:15,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:58:15,587 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:15,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:15,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1469227742, now seen corresponding path program 1 times [2024-11-28 02:58:15,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:15,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584833473] [2024-11-28 02:58:15,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:15,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2024-11-28 02:58:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584833473] [2024-11-28 02:58:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584833473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:19,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:58:19,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:58:19,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998315551] [2024-11-28 02:58:19,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:19,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:58:19,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:19,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:58:19,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:58:19,042 INFO L87 Difference]: Start difference. First operand 131229 states and 216044 transitions. Second operand has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 3 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2024-11-28 02:58:43,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:43,207 INFO L93 Difference]: Finished difference Result 352869 states and 577924 transitions. [2024-11-28 02:58:43,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:58:43,207 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 3 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 551 [2024-11-28 02:58:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:44,076 INFO L225 Difference]: With dead ends: 352869 [2024-11-28 02:58:44,076 INFO L226 Difference]: Without dead ends: 221643 [2024-11-28 02:58:44,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:58:44,330 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 5543 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 1264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5543 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 3645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:44,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5543 Valid, 3370 Invalid, 3645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1264 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 02:58:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221643 states.