./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-99.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_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-99.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1 --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 3fc2dee412d1614ffe2e48e99f34626a98e2bc7bb385efe0786b8cd06ee2804e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:26:02,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:26:02,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:26:02,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:26:02,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:26:02,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:26:02,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:26:02,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:26:02,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:26:02,775 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:26:02,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:26:02,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:26:02,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:26:02,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:26:02,776 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:26:02,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:26:02,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:26:02,777 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:26:02,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:26:02,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:26:02,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:26:02,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:26:02,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:26:02,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:26:02,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:26:02,780 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_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1 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 -> 3fc2dee412d1614ffe2e48e99f34626a98e2bc7bb385efe0786b8cd06ee2804e [2024-12-02 10:26:02,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:26:02,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:26:02,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:26:02,995 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:26:02,995 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:26:02,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-99.i [2024-12-02 10:26:05,661 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/data/eaad98ae7/c22a80794e07431cb25bc53744c72754/FLAG042a26c14 [2024-12-02 10:26:05,948 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:26:05,949 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-99.i [2024-12-02 10:26:05,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/data/eaad98ae7/c22a80794e07431cb25bc53744c72754/FLAG042a26c14 [2024-12-02 10:26:05,977 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/data/eaad98ae7/c22a80794e07431cb25bc53744c72754 [2024-12-02 10:26:05,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:26:05,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:26:05,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:26:05,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:26:05,986 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:26:05,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:26:05" (1/1) ... [2024-12-02 10:26:05,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a73db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:05, skipping insertion in model container [2024-12-02 10:26:05,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:26:05" (1/1) ... [2024-12-02 10:26:06,017 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:26:06,158 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_eb038dc3-5715-4085-bcaa-114df0ca42c8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-99.i[916,929] [2024-12-02 10:26:06,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:26:06,315 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:26:06,325 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_eb038dc3-5715-4085-bcaa-114df0ca42c8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-99.i[916,929] [2024-12-02 10:26:06,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:26:06,419 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:26:06,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06 WrapperNode [2024-12-02 10:26:06,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:26:06,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:26:06,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:26:06,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:26:06,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,508 INFO L138 Inliner]: procedures = 26, calls = 119, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 918 [2024-12-02 10:26:06,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:26:06,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:26:06,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:26:06,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:26:06,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,556 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]. [2024-12-02 10:26:06,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,582 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:26:06,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:26:06,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:26:06,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:26:06,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (1/1) ... [2024-12-02 10:26:06,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:26:06,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:26:06,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:26:06,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:26:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:26:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:26:06,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:26:06,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:26:06,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:26:06,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:26:06,827 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:26:06,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:26:08,156 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-12-02 10:26:08,156 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:26:08,175 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:26:08,176 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:26:08,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:26:08 BoogieIcfgContainer [2024-12-02 10:26:08,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:26:08,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:26:08,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:26:08,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:26:08,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:26:05" (1/3) ... [2024-12-02 10:26:08,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ed79d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:26:08, skipping insertion in model container [2024-12-02 10:26:08,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:06" (2/3) ... [2024-12-02 10:26:08,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ed79d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:26:08, skipping insertion in model container [2024-12-02 10:26:08,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:26:08" (3/3) ... [2024-12-02 10:26:08,185 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-99.i [2024-12-02 10:26:08,197 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:26:08,199 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-99.i that has 2 procedures, 373 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:26:08,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:26:08,268 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;@46a873cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:26:08,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:26:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 373 states, 264 states have (on average 1.5984848484848484) internal successors, (422), 265 states have internal predecessors, (422), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 10:26:08,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-12-02 10:26:08,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:08,307 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:08,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:08,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:08,312 INFO L85 PathProgramCache]: Analyzing trace with hash -895737952, now seen corresponding path program 1 times [2024-12-02 10:26:08,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:08,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122244019] [2024-12-02 10:26:08,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:08,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:09,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:09,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122244019] [2024-12-02 10:26:09,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122244019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:09,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:09,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:26:09,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601176627] [2024-12-02 10:26:09,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:09,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:26:09,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:09,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:26:09,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:09,256 INFO L87 Difference]: Start difference. First operand has 373 states, 264 states have (on average 1.5984848484848484) internal successors, (422), 265 states have internal predecessors, (422), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:09,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:09,398 INFO L93 Difference]: Finished difference Result 994 states and 1855 transitions. [2024-12-02 10:26:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:26:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-12-02 10:26:09,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:09,423 INFO L225 Difference]: With dead ends: 994 [2024-12-02 10:26:09,424 INFO L226 Difference]: Without dead ends: 624 [2024-12-02 10:26:09,429 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 [2024-12-02 10:26:09,431 INFO L435 NwaCegarLoop]: 732 mSDtfsCounter, 425 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:09,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1341 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:26:09,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-12-02 10:26:09,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 621. [2024-12-02 10:26:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 469 states have (on average 1.6226012793176972) internal successors, (761), 470 states have internal predecessors, (761), 149 states have call successors, (149), 2 states have call predecessors, (149), 2 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 10:26:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1059 transitions. [2024-12-02 10:26:09,536 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1059 transitions. Word has length 687 [2024-12-02 10:26:09,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:09,538 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 1059 transitions. [2024-12-02 10:26:09,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:09,539 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1059 transitions. [2024-12-02 10:26:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-12-02 10:26:09,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:09,552 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:09,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:26:09,552 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:09,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:09,553 INFO L85 PathProgramCache]: Analyzing trace with hash -777323168, now seen corresponding path program 1 times [2024-12-02 10:26:09,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:09,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704008273] [2024-12-02 10:26:09,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:09,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:10,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:10,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704008273] [2024-12-02 10:26:10,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704008273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:10,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:10,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:26:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158889598] [2024-12-02 10:26:10,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:10,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:26:10,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:10,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:26:10,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:10,020 INFO L87 Difference]: Start difference. First operand 621 states and 1059 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:10,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:10,137 INFO L93 Difference]: Finished difference Result 1646 states and 2798 transitions. [2024-12-02 10:26:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:26:10,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-12-02 10:26:10,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:10,149 INFO L225 Difference]: With dead ends: 1646 [2024-12-02 10:26:10,149 INFO L226 Difference]: Without dead ends: 1028 [2024-12-02 10:26:10,151 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 [2024-12-02 10:26:10,152 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 376 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:10,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1438 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:26:10,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-12-02 10:26:10,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1025. [2024-12-02 10:26:10,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 752 states have (on average 1.5957446808510638) internal successors, (1200), 755 states have internal predecessors, (1200), 268 states have call successors, (268), 4 states have call predecessors, (268), 4 states have return successors, (268), 265 states have call predecessors, (268), 268 states have call successors, (268) [2024-12-02 10:26:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1736 transitions. [2024-12-02 10:26:10,235 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1736 transitions. Word has length 687 [2024-12-02 10:26:10,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:10,236 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1736 transitions. [2024-12-02 10:26:10,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:10,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1736 transitions. [2024-12-02 10:26:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-12-02 10:26:10,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:10,248 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:10,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:26:10,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:10,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1468256286, now seen corresponding path program 1 times [2024-12-02 10:26:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:10,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040003774] [2024-12-02 10:26:10,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:10,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:10,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040003774] [2024-12-02 10:26:10,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040003774] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:10,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:10,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:26:10,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230575900] [2024-12-02 10:26:10,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:10,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:26:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:10,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:26:10,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:10,747 INFO L87 Difference]: Start difference. First operand 1025 states and 1736 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:10,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:10,853 INFO L93 Difference]: Finished difference Result 2735 states and 4620 transitions. [2024-12-02 10:26:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:26:10,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-12-02 10:26:10,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:10,866 INFO L225 Difference]: With dead ends: 2735 [2024-12-02 10:26:10,867 INFO L226 Difference]: Without dead ends: 1713 [2024-12-02 10:26:10,869 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 [2024-12-02 10:26:10,870 INFO L435 NwaCegarLoop]: 619 mSDtfsCounter, 427 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:10,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1233 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:26:10,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2024-12-02 10:26:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1711. [2024-12-02 10:26:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1209 states have (on average 1.5707196029776676) internal successors, (1899), 1214 states have internal predecessors, (1899), 493 states have call successors, (493), 8 states have call predecessors, (493), 8 states have return successors, (493), 488 states have call predecessors, (493), 493 states have call successors, (493) [2024-12-02 10:26:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2885 transitions. [2024-12-02 10:26:11,090 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2885 transitions. Word has length 687 [2024-12-02 10:26:11,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:11,092 INFO L471 AbstractCegarLoop]: Abstraction has 1711 states and 2885 transitions. [2024-12-02 10:26:11,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:11,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2885 transitions. [2024-12-02 10:26:11,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-12-02 10:26:11,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:11,101 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:11,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:26:11,101 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:11,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash 975630112, now seen corresponding path program 1 times [2024-12-02 10:26:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:11,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943150237] [2024-12-02 10:26:11,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:11,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:11,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943150237] [2024-12-02 10:26:11,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943150237] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:11,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:11,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:26:11,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185695800] [2024-12-02 10:26:11,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:11,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:26:11,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:11,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:26:11,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:11,634 INFO L87 Difference]: Start difference. First operand 1711 states and 2885 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:12,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:12,684 INFO L93 Difference]: Finished difference Result 6202 states and 10479 transitions. [2024-12-02 10:26:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:26:12,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-12-02 10:26:12,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:12,705 INFO L225 Difference]: With dead ends: 6202 [2024-12-02 10:26:12,705 INFO L226 Difference]: Without dead ends: 4561 [2024-12-02 10:26:12,710 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 [2024-12-02 10:26:12,711 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 1228 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:12,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 2446 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:26:12,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4561 states. [2024-12-02 10:26:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4561 to 3539. [2024-12-02 10:26:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3539 states, 2623 states have (on average 1.5955013343499809) internal successors, (4185), 2636 states have internal predecessors, (4185), 897 states have call successors, (897), 18 states have call predecessors, (897), 18 states have return successors, (897), 884 states have call predecessors, (897), 897 states have call successors, (897) [2024-12-02 10:26:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 5979 transitions. [2024-12-02 10:26:13,056 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 5979 transitions. Word has length 687 [2024-12-02 10:26:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:13,057 INFO L471 AbstractCegarLoop]: Abstraction has 3539 states and 5979 transitions. [2024-12-02 10:26:13,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 5979 transitions. [2024-12-02 10:26:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-12-02 10:26:13,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:13,062 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:13,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:26:13,063 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:13,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:13,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1840779467, now seen corresponding path program 1 times [2024-12-02 10:26:13,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:13,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488912748] [2024-12-02 10:26:13,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:13,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:13,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:13,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488912748] [2024-12-02 10:26:13,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488912748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:13,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:13,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:26:13,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526151987] [2024-12-02 10:26:13,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:13,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:26:13,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:13,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:26:13,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:13,601 INFO L87 Difference]: Start difference. First operand 3539 states and 5979 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:14,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:14,502 INFO L93 Difference]: Finished difference Result 11924 states and 19981 transitions. [2024-12-02 10:26:14,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:26:14,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 688 [2024-12-02 10:26:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:14,590 INFO L225 Difference]: With dead ends: 11924 [2024-12-02 10:26:14,590 INFO L226 Difference]: Without dead ends: 8455 [2024-12-02 10:26:14,608 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 [2024-12-02 10:26:14,609 INFO L435 NwaCegarLoop]: 1079 mSDtfsCounter, 666 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:14,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 2344 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:26:14,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8455 states. [2024-12-02 10:26:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8455 to 6748. [2024-12-02 10:26:15,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6748 states, 5044 states have (on average 1.5864393338620142) internal successors, (8002), 5071 states have internal predecessors, (8002), 1667 states have call successors, (1667), 36 states have call predecessors, (1667), 36 states have return successors, (1667), 1640 states have call predecessors, (1667), 1667 states have call successors, (1667) [2024-12-02 10:26:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 11336 transitions. [2024-12-02 10:26:15,194 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 11336 transitions. Word has length 688 [2024-12-02 10:26:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:15,195 INFO L471 AbstractCegarLoop]: Abstraction has 6748 states and 11336 transitions. [2024-12-02 10:26:15,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 11336 transitions. [2024-12-02 10:26:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-12-02 10:26:15,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:15,208 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:15,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:26:15,209 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:15,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:15,209 INFO L85 PathProgramCache]: Analyzing trace with hash 210204531, now seen corresponding path program 1 times [2024-12-02 10:26:15,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:15,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793921029] [2024-12-02 10:26:15,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:15,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:16,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:16,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793921029] [2024-12-02 10:26:16,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793921029] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:16,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:16,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:26:16,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431540159] [2024-12-02 10:26:16,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:16,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:26:16,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:16,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:26:16,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:16,132 INFO L87 Difference]: Start difference. First operand 6748 states and 11336 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2024-12-02 10:26:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:17,911 INFO L93 Difference]: Finished difference Result 22529 states and 37870 transitions. [2024-12-02 10:26:17,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:26:17,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 688 [2024-12-02 10:26:17,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:18,007 INFO L225 Difference]: With dead ends: 22529 [2024-12-02 10:26:18,008 INFO L226 Difference]: Without dead ends: 15851 [2024-12-02 10:26:18,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:26:18,035 INFO L435 NwaCegarLoop]: 1043 mSDtfsCounter, 974 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:18,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 3708 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:26:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15851 states. [2024-12-02 10:26:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15851 to 13273. [2024-12-02 10:26:19,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13273 states, 10100 states have (on average 1.597821782178218) internal successors, (16138), 10153 states have internal predecessors, (16138), 3103 states have call successors, (3103), 69 states have call predecessors, (3103), 69 states have return successors, (3103), 3050 states have call predecessors, (3103), 3103 states have call successors, (3103) [2024-12-02 10:26:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13273 states to 13273 states and 22344 transitions. [2024-12-02 10:26:19,211 INFO L78 Accepts]: Start accepts. Automaton has 13273 states and 22344 transitions. Word has length 688 [2024-12-02 10:26:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:19,212 INFO L471 AbstractCegarLoop]: Abstraction has 13273 states and 22344 transitions. [2024-12-02 10:26:19,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2024-12-02 10:26:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 13273 states and 22344 transitions. [2024-12-02 10:26:19,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2024-12-02 10:26:19,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:19,233 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:19,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:26:19,233 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:19,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:19,234 INFO L85 PathProgramCache]: Analyzing trace with hash 331845019, now seen corresponding path program 1 times [2024-12-02 10:26:19,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:19,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093964910] [2024-12-02 10:26:19,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:19,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:19,762 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:19,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:19,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093964910] [2024-12-02 10:26:19,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093964910] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:19,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:19,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:26:19,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563072222] [2024-12-02 10:26:19,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:19,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:26:19,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:19,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:26:19,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:26:19,765 INFO L87 Difference]: Start difference. First operand 13273 states and 22344 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:21,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:21,053 INFO L93 Difference]: Finished difference Result 37470 states and 63183 transitions. [2024-12-02 10:26:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:26:21,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 689 [2024-12-02 10:26:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:21,164 INFO L225 Difference]: With dead ends: 37470 [2024-12-02 10:26:21,164 INFO L226 Difference]: Without dead ends: 24271 [2024-12-02 10:26:21,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:21,197 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 399 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:21,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 2504 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:26:21,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24271 states. [2024-12-02 10:26:22,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24271 to 24201. [2024-12-02 10:26:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24201 states, 19348 states have (on average 1.623320239818069) internal successors, (31408), 19457 states have internal predecessors, (31408), 4727 states have call successors, (4727), 125 states have call predecessors, (4727), 125 states have return successors, (4727), 4618 states have call predecessors, (4727), 4727 states have call successors, (4727) [2024-12-02 10:26:22,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24201 states to 24201 states and 40862 transitions. [2024-12-02 10:26:22,248 INFO L78 Accepts]: Start accepts. Automaton has 24201 states and 40862 transitions. Word has length 689 [2024-12-02 10:26:22,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:22,248 INFO L471 AbstractCegarLoop]: Abstraction has 24201 states and 40862 transitions. [2024-12-02 10:26:22,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 24201 states and 40862 transitions. [2024-12-02 10:26:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2024-12-02 10:26:22,268 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:22,268 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:22,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:26:22,268 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:22,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:22,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1219067865, now seen corresponding path program 1 times [2024-12-02 10:26:22,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:22,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369122186] [2024-12-02 10:26:22,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:22,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:23,289 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:23,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:23,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369122186] [2024-12-02 10:26:23,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369122186] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:23,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:23,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:26:23,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983576326] [2024-12-02 10:26:23,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:23,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:26:23,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:23,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:26:23,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:26:23,292 INFO L87 Difference]: Start difference. First operand 24201 states and 40862 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:25,168 INFO L93 Difference]: Finished difference Result 48272 states and 81500 transitions. [2024-12-02 10:26:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:26:25,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 689 [2024-12-02 10:26:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:25,322 INFO L225 Difference]: With dead ends: 48272 [2024-12-02 10:26:25,322 INFO L226 Difference]: Without dead ends: 38100 [2024-12-02 10:26:25,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:25,361 INFO L435 NwaCegarLoop]: 1065 mSDtfsCounter, 806 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:25,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 2886 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:26:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38100 states. [2024-12-02 10:26:26,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38100 to 24746. [2024-12-02 10:26:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24746 states, 19893 states have (on average 1.627054742874378) internal successors, (32367), 20002 states have internal predecessors, (32367), 4727 states have call successors, (4727), 125 states have call predecessors, (4727), 125 states have return successors, (4727), 4618 states have call predecessors, (4727), 4727 states have call successors, (4727) [2024-12-02 10:26:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24746 states to 24746 states and 41821 transitions. [2024-12-02 10:26:26,914 INFO L78 Accepts]: Start accepts. Automaton has 24746 states and 41821 transitions. Word has length 689 [2024-12-02 10:26:26,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:26,914 INFO L471 AbstractCegarLoop]: Abstraction has 24746 states and 41821 transitions. [2024-12-02 10:26:26,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 24746 states and 41821 transitions. [2024-12-02 10:26:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2024-12-02 10:26:26,988 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:26,988 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:26,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:26:26,988 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:26,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1730565142, now seen corresponding path program 1 times [2024-12-02 10:26:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991019200] [2024-12-02 10:26:26,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:26,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:27,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:27,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991019200] [2024-12-02 10:26:27,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991019200] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:27,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:27,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:26:27,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351529352] [2024-12-02 10:26:27,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:27,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:26:27,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:27,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:26:27,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:27,270 INFO L87 Difference]: Start difference. First operand 24746 states and 41821 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:28,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:28,925 INFO L93 Difference]: Finished difference Result 74110 states and 125271 transitions. [2024-12-02 10:26:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:26:28,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 689 [2024-12-02 10:26:28,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:29,041 INFO L225 Difference]: With dead ends: 74110 [2024-12-02 10:26:29,041 INFO L226 Difference]: Without dead ends: 49438 [2024-12-02 10:26:29,086 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 [2024-12-02 10:26:29,087 INFO L435 NwaCegarLoop]: 797 mSDtfsCounter, 446 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:29,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1812 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:26:29,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49438 states. [2024-12-02 10:26:31,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49438 to 46166. [2024-12-02 10:26:31,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46166 states, 37241 states have (on average 1.6290915925995542) internal successors, (60669), 37442 states have internal predecessors, (60669), 8695 states have call successors, (8695), 229 states have call predecessors, (8695), 229 states have return successors, (8695), 8494 states have call predecessors, (8695), 8695 states have call successors, (8695) [2024-12-02 10:26:31,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46166 states to 46166 states and 78059 transitions. [2024-12-02 10:26:31,931 INFO L78 Accepts]: Start accepts. Automaton has 46166 states and 78059 transitions. Word has length 689 [2024-12-02 10:26:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:31,931 INFO L471 AbstractCegarLoop]: Abstraction has 46166 states and 78059 transitions. [2024-12-02 10:26:31,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:31,932 INFO L276 IsEmpty]: Start isEmpty. Operand 46166 states and 78059 transitions. [2024-12-02 10:26:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2024-12-02 10:26:31,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:31,963 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:31,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:26:31,963 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:31,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:31,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1569708456, now seen corresponding path program 1 times [2024-12-02 10:26:31,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:31,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363401368] [2024-12-02 10:26:31,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:31,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:32,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:32,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363401368] [2024-12-02 10:26:32,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363401368] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:32,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:32,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:26:32,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327267756] [2024-12-02 10:26:32,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:32,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:26:32,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:32,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:26:32,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:32,505 INFO L87 Difference]: Start difference. First operand 46166 states and 78059 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:34,983 INFO L93 Difference]: Finished difference Result 124727 states and 210726 transitions. [2024-12-02 10:26:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:26:34,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 689 [2024-12-02 10:26:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:35,192 INFO L225 Difference]: With dead ends: 124727 [2024-12-02 10:26:35,192 INFO L226 Difference]: Without dead ends: 78635 [2024-12-02 10:26:35,285 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 [2024-12-02 10:26:35,285 INFO L435 NwaCegarLoop]: 703 mSDtfsCounter, 385 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:35,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1299 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:26:35,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78635 states. [2024-12-02 10:26:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78635 to 45194. [2024-12-02 10:26:38,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45194 states, 36537 states have (on average 1.6297725593234256) internal successors, (59547), 36730 states have internal predecessors, (59547), 8431 states have call successors, (8431), 225 states have call predecessors, (8431), 225 states have return successors, (8431), 8238 states have call predecessors, (8431), 8431 states have call successors, (8431) [2024-12-02 10:26:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45194 states to 45194 states and 76409 transitions. [2024-12-02 10:26:38,916 INFO L78 Accepts]: Start accepts. Automaton has 45194 states and 76409 transitions. Word has length 689 [2024-12-02 10:26:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:38,917 INFO L471 AbstractCegarLoop]: Abstraction has 45194 states and 76409 transitions. [2024-12-02 10:26:38,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 45194 states and 76409 transitions. [2024-12-02 10:26:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-12-02 10:26:38,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:38,958 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:38,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:26:38,958 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:38,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:38,959 INFO L85 PathProgramCache]: Analyzing trace with hash -236020106, now seen corresponding path program 1 times [2024-12-02 10:26:38,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:38,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302362959] [2024-12-02 10:26:38,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:38,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:39,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:39,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302362959] [2024-12-02 10:26:39,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302362959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:39,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:39,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:26:39,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915916453] [2024-12-02 10:26:39,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:39,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:26:39,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:39,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:26:39,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:39,750 INFO L87 Difference]: Start difference. First operand 45194 states and 76409 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:42,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:42,683 INFO L93 Difference]: Finished difference Result 106124 states and 178787 transitions. [2024-12-02 10:26:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:26:42,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 690 [2024-12-02 10:26:42,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:42,812 INFO L225 Difference]: With dead ends: 106124 [2024-12-02 10:26:42,812 INFO L226 Difference]: Without dead ends: 61004 [2024-12-02 10:26:42,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:26:42,882 INFO L435 NwaCegarLoop]: 794 mSDtfsCounter, 2193 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:42,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 2233 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:26:42,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61004 states. [2024-12-02 10:26:45,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61004 to 60445. [2024-12-02 10:26:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60445 states, 48324 states have (on average 1.617146759374224) internal successors, (78147), 48585 states have internal predecessors, (78147), 11725 states have call successors, (11725), 395 states have call predecessors, (11725), 395 states have return successors, (11725), 11464 states have call predecessors, (11725), 11725 states have call successors, (11725) [2024-12-02 10:26:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60445 states to 60445 states and 101597 transitions. [2024-12-02 10:26:45,548 INFO L78 Accepts]: Start accepts. Automaton has 60445 states and 101597 transitions. Word has length 690 [2024-12-02 10:26:45,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:45,548 INFO L471 AbstractCegarLoop]: Abstraction has 60445 states and 101597 transitions. [2024-12-02 10:26:45,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 60445 states and 101597 transitions. [2024-12-02 10:26:45,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-12-02 10:26:45,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:45,581 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:45,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:26:45,582 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:45,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:45,582 INFO L85 PathProgramCache]: Analyzing trace with hash -208954504, now seen corresponding path program 1 times [2024-12-02 10:26:45,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:45,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258342138] [2024-12-02 10:26:45,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:45,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:46,227 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:46,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:46,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258342138] [2024-12-02 10:26:46,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258342138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:46,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:46,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:26:46,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534974869] [2024-12-02 10:26:46,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:46,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:26:46,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:46,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:26:46,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:46,229 INFO L87 Difference]: Start difference. First operand 60445 states and 101597 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:51,599 INFO L93 Difference]: Finished difference Result 181581 states and 305357 transitions. [2024-12-02 10:26:51,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:26:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 690 [2024-12-02 10:26:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:51,852 INFO L225 Difference]: With dead ends: 181581 [2024-12-02 10:26:51,852 INFO L226 Difference]: Without dead ends: 121214 [2024-12-02 10:26:51,942 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 [2024-12-02 10:26:51,942 INFO L435 NwaCegarLoop]: 1174 mSDtfsCounter, 611 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:51,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 2945 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:26:51,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121214 states. [2024-12-02 10:26:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121214 to 121172. [2024-12-02 10:26:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121172 states, 96999 states have (on average 1.598336065320261) internal successors, (155037), 97520 states have internal predecessors, (155037), 23385 states have call successors, (23385), 787 states have call predecessors, (23385), 787 states have return successors, (23385), 22864 states have call predecessors, (23385), 23385 states have call successors, (23385) [2024-12-02 10:26:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121172 states to 121172 states and 201807 transitions. [2024-12-02 10:26:58,390 INFO L78 Accepts]: Start accepts. Automaton has 121172 states and 201807 transitions. Word has length 690 [2024-12-02 10:26:58,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:58,391 INFO L471 AbstractCegarLoop]: Abstraction has 121172 states and 201807 transitions. [2024-12-02 10:26:58,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:26:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand 121172 states and 201807 transitions. [2024-12-02 10:26:58,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-12-02 10:26:58,452 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:58,452 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:58,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:26:58,452 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:58,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:58,453 INFO L85 PathProgramCache]: Analyzing trace with hash 214692218, now seen corresponding path program 1 times [2024-12-02 10:26:58,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:58,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347289634] [2024-12-02 10:26:58,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:58,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:26:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347289634] [2024-12-02 10:26:59,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347289634] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:59,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:59,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:26:59,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175602970] [2024-12-02 10:26:59,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:59,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:26:59,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:59,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:26:59,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:59,103 INFO L87 Difference]: Start difference. First operand 121172 states and 201807 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:27:10,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:10,988 INFO L93 Difference]: Finished difference Result 354916 states and 591017 transitions. [2024-12-02 10:27:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:27:10,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 690 [2024-12-02 10:27:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:11,571 INFO L225 Difference]: With dead ends: 354916 [2024-12-02 10:27:11,571 INFO L226 Difference]: Without dead ends: 233822 [2024-12-02 10:27:11,747 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 [2024-12-02 10:27:11,747 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 1255 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:11,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1911 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:27:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233822 states. [2024-12-02 10:27:18,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233822 to 80471. [2024-12-02 10:27:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80471 states, 67978 states have (on average 1.6361322780899703) internal successors, (111221), 68233 states have internal predecessors, (111221), 12061 states have call successors, (12061), 431 states have call predecessors, (12061), 431 states have return successors, (12061), 11806 states have call predecessors, (12061), 12061 states have call successors, (12061) [2024-12-02 10:27:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80471 states to 80471 states and 135343 transitions. [2024-12-02 10:27:18,892 INFO L78 Accepts]: Start accepts. Automaton has 80471 states and 135343 transitions. Word has length 690 [2024-12-02 10:27:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:18,893 INFO L471 AbstractCegarLoop]: Abstraction has 80471 states and 135343 transitions. [2024-12-02 10:27:18,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:27:18,893 INFO L276 IsEmpty]: Start isEmpty. Operand 80471 states and 135343 transitions. [2024-12-02 10:27:18,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-12-02 10:27:18,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:18,926 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:18,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:27:18,926 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:18,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:18,927 INFO L85 PathProgramCache]: Analyzing trace with hash 235493950, now seen corresponding path program 1 times [2024-12-02 10:27:18,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:18,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689534685] [2024-12-02 10:27:18,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:18,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:27:31,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:31,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689534685] [2024-12-02 10:27:31,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689534685] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:31,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:31,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:27:31,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740839298] [2024-12-02 10:27:31,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:31,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:27:31,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:31,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:27:31,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:27:31,390 INFO L87 Difference]: Start difference. First operand 80471 states and 135343 transitions. Second operand has 14 states, 14 states have (on average 11.642857142857142) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 4 states have call predecessors, (106), 4 states have call successors, (106) [2024-12-02 10:27:57,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:57,714 INFO L93 Difference]: Finished difference Result 288052 states and 484304 transitions. [2024-12-02 10:27:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:27:57,715 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.642857142857142) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 4 states have call predecessors, (106), 4 states have call successors, (106) Word has length 690 [2024-12-02 10:27:57,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:59,118 INFO L225 Difference]: With dead ends: 288052 [2024-12-02 10:27:59,118 INFO L226 Difference]: Without dead ends: 207659 [2024-12-02 10:27:59,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:27:59,331 INFO L435 NwaCegarLoop]: 666 mSDtfsCounter, 4739 mSDsluCounter, 4255 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 1541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 4921 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1541 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:59,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 4921 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1541 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-12-02 10:27:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207659 states. [2024-12-02 10:28:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207659 to 115125. [2024-12-02 10:28:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115125 states, 99506 states have (on average 1.6525938134383855) internal successors, (164443), 99804 states have internal predecessors, (164443), 15004 states have call successors, (15004), 614 states have call predecessors, (15004), 614 states have return successors, (15004), 14706 states have call predecessors, (15004), 15004 states have call successors, (15004) [2024-12-02 10:28:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115125 states to 115125 states and 194451 transitions. [2024-12-02 10:28:13,605 INFO L78 Accepts]: Start accepts. Automaton has 115125 states and 194451 transitions. Word has length 690 [2024-12-02 10:28:13,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:13,606 INFO L471 AbstractCegarLoop]: Abstraction has 115125 states and 194451 transitions. [2024-12-02 10:28:13,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.642857142857142) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 4 states have call predecessors, (106), 4 states have call successors, (106) [2024-12-02 10:28:13,607 INFO L276 IsEmpty]: Start isEmpty. Operand 115125 states and 194451 transitions. [2024-12-02 10:28:13,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-12-02 10:28:13,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:13,760 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:13,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:28:13,760 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:13,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash 297533564, now seen corresponding path program 1 times [2024-12-02 10:28:13,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:13,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423292189] [2024-12-02 10:28:13,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:28:15,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:15,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423292189] [2024-12-02 10:28:15,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423292189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:15,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:15,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:28:15,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96926871] [2024-12-02 10:28:15,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:15,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:28:15,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:15,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:28:15,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:28:15,765 INFO L87 Difference]: Start difference. First operand 115125 states and 194451 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:28:46,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:46,028 INFO L93 Difference]: Finished difference Result 396404 states and 664719 transitions. [2024-12-02 10:28:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:28:46,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 690 [2024-12-02 10:28:46,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:46,754 INFO L225 Difference]: With dead ends: 396404 [2024-12-02 10:28:46,754 INFO L226 Difference]: Without dead ends: 278861 [2024-12-02 10:28:46,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:28:46,972 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 788 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:46,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1864 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:28:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278861 states. [2024-12-02 10:29:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278861 to 182709. [2024-12-02 10:29:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182709 states, 167090 states have (on average 1.6739182476509666) internal successors, (279695), 167388 states have internal predecessors, (279695), 15004 states have call successors, (15004), 614 states have call predecessors, (15004), 614 states have return successors, (15004), 14706 states have call predecessors, (15004), 15004 states have call successors, (15004) [2024-12-02 10:29:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182709 states to 182709 states and 309703 transitions. [2024-12-02 10:29:04,025 INFO L78 Accepts]: Start accepts. Automaton has 182709 states and 309703 transitions. Word has length 690 [2024-12-02 10:29:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:04,026 INFO L471 AbstractCegarLoop]: Abstraction has 182709 states and 309703 transitions. [2024-12-02 10:29:04,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:29:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 182709 states and 309703 transitions. [2024-12-02 10:29:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-12-02 10:29:04,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:04,227 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:04,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:29:04,227 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:04,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1152750838, now seen corresponding path program 1 times [2024-12-02 10:29:04,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:29:04,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736573790] [2024-12-02 10:29:04,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:04,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:29:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 117 proven. 198 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2024-12-02 10:29:07,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:29:07,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736573790] [2024-12-02 10:29:07,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736573790] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:29:07,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876202589] [2024-12-02 10:29:07,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:07,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:29:07,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:29:07,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:29:07,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:29:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:08,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 10:29:08,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 9255 proven. 90 refuted. 0 times theorem prover too weak. 12915 trivial. 0 not checked. [2024-12-02 10:29:10,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:29:37,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876202589] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:29:37,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:29:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 11 [2024-12-02 10:29:37,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470805379] [2024-12-02 10:29:37,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:29:37,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:29:37,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:29:37,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:29:37,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:29:37,356 INFO L87 Difference]: Start difference. First operand 182709 states and 309703 transitions. Second operand has 11 states, 11 states have (on average 28.90909090909091) internal successors, (318), 11 states have internal predecessors, (318), 4 states have call successors, (212), 3 states have call predecessors, (212), 5 states have return successors, (212), 4 states have call predecessors, (212), 4 states have call successors, (212) [2024-12-02 10:29:54,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:54,511 INFO L93 Difference]: Finished difference Result 400650 states and 678058 transitions. [2024-12-02 10:29:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 10:29:54,511 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 28.90909090909091) internal successors, (318), 11 states have internal predecessors, (318), 4 states have call successors, (212), 3 states have call predecessors, (212), 5 states have return successors, (212), 4 states have call predecessors, (212), 4 states have call successors, (212) Word has length 690 [2024-12-02 10:29:54,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:54,995 INFO L225 Difference]: With dead ends: 400650 [2024-12-02 10:29:54,995 INFO L226 Difference]: Without dead ends: 218019 [2024-12-02 10:29:55,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-12-02 10:29:55,183 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 2108 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:55,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 2941 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 10:29:55,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218019 states. [2024-12-02 10:30:11,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218019 to 216723. [2024-12-02 10:30:12,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216723 states, 198885 states have (on average 1.6670085727933228) internal successors, (331543), 199247 states have internal predecessors, (331543), 16988 states have call successors, (16988), 849 states have call predecessors, (16988), 849 states have return successors, (16988), 16626 states have call predecessors, (16988), 16988 states have call successors, (16988) [2024-12-02 10:30:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216723 states to 216723 states and 365519 transitions. [2024-12-02 10:30:12,539 INFO L78 Accepts]: Start accepts. Automaton has 216723 states and 365519 transitions. Word has length 690 [2024-12-02 10:30:12,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:12,540 INFO L471 AbstractCegarLoop]: Abstraction has 216723 states and 365519 transitions. [2024-12-02 10:30:12,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 28.90909090909091) internal successors, (318), 11 states have internal predecessors, (318), 4 states have call successors, (212), 3 states have call predecessors, (212), 5 states have return successors, (212), 4 states have call predecessors, (212), 4 states have call successors, (212) [2024-12-02 10:30:12,540 INFO L276 IsEmpty]: Start isEmpty. Operand 216723 states and 365519 transitions. [2024-12-02 10:30:12,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2024-12-02 10:30:12,650 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:12,650 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:12,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:30:12,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 10:30:12,851 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:12,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:12,851 INFO L85 PathProgramCache]: Analyzing trace with hash 535718381, now seen corresponding path program 1 times [2024-12-02 10:30:12,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:30:12,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358907634] [2024-12-02 10:30:12,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:30:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 177 proven. 138 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2024-12-02 10:30:14,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:30:14,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358907634] [2024-12-02 10:30:14,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358907634] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:30:14,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839877388] [2024-12-02 10:30:14,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:14,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:30:14,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:30:14,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:30:14,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:30:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:15,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:30:15,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:15,515 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 8479 proven. 78 refuted. 0 times theorem prover too weak. 13703 trivial. 0 not checked. [2024-12-02 10:30:15,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:30:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 237 proven. 78 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2024-12-02 10:30:16,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839877388] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:30:16,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:30:16,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 10:30:16,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055693057] [2024-12-02 10:30:16,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:30:16,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:30:16,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:30:16,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:30:16,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:30:16,012 INFO L87 Difference]: Start difference. First operand 216723 states and 365519 transitions. Second operand has 8 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 3 states have call successors, (178), 2 states have call predecessors, (178), 4 states have return successors, (180), 3 states have call predecessors, (180), 3 states have call successors, (180) [2024-12-02 10:30:25,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:25,868 INFO L93 Difference]: Finished difference Result 341176 states and 577419 transitions. [2024-12-02 10:30:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:30:25,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 3 states have call successors, (178), 2 states have call predecessors, (178), 4 states have return successors, (180), 3 states have call predecessors, (180), 3 states have call successors, (180) Word has length 691 [2024-12-02 10:30:25,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:26,139 INFO L225 Difference]: With dead ends: 341176 [2024-12-02 10:30:26,139 INFO L226 Difference]: Without dead ends: 124535 [2024-12-02 10:30:26,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1395 GetRequests, 1379 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:30:26,311 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 675 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:26,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 1219 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:30:26,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124535 states. [2024-12-02 10:30:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124535 to 123887. [2024-12-02 10:30:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123887 states, 114500 states have (on average 1.6638777292576419) internal successors, (190514), 114670 states have internal predecessors, (190514), 8884 states have call successors, (8884), 502 states have call predecessors, (8884), 502 states have return successors, (8884), 8714 states have call predecessors, (8884), 8884 states have call successors, (8884) [2024-12-02 10:30:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123887 states to 123887 states and 208282 transitions. [2024-12-02 10:30:34,713 INFO L78 Accepts]: Start accepts. Automaton has 123887 states and 208282 transitions. Word has length 691 [2024-12-02 10:30:34,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:34,714 INFO L471 AbstractCegarLoop]: Abstraction has 123887 states and 208282 transitions. [2024-12-02 10:30:34,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 3 states have call successors, (178), 2 states have call predecessors, (178), 4 states have return successors, (180), 3 states have call predecessors, (180), 3 states have call successors, (180) [2024-12-02 10:30:34,714 INFO L276 IsEmpty]: Start isEmpty. Operand 123887 states and 208282 transitions. [2024-12-02 10:30:34,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-12-02 10:30:34,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:34,751 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:34,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:30:34,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 10:30:34,951 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:34,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:34,952 INFO L85 PathProgramCache]: Analyzing trace with hash -347589844, now seen corresponding path program 1 times [2024-12-02 10:30:34,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:30:34,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571252382] [2024-12-02 10:30:34,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:34,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:30:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:30:35,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:30:35,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571252382] [2024-12-02 10:30:35,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571252382] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:35,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:35,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:30:35,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751902651] [2024-12-02 10:30:35,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:35,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:30:35,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:30:35,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:30:35,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:30:35,600 INFO L87 Difference]: Start difference. First operand 123887 states and 208282 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:30:44,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:44,417 INFO L93 Difference]: Finished difference Result 247864 states and 416620 transitions. [2024-12-02 10:30:44,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:30:44,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 692 [2024-12-02 10:30:44,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:44,638 INFO L225 Difference]: With dead ends: 247864 [2024-12-02 10:30:44,638 INFO L226 Difference]: Without dead ends: 124059 [2024-12-02 10:30:44,738 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 [2024-12-02 10:30:44,738 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 634 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:44,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1226 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:30:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124059 states. [2024-12-02 10:30:53,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124059 to 123793. [2024-12-02 10:30:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123793 states, 114414 states have (on average 1.635149544636146) internal successors, (187084), 114583 states have internal predecessors, (187084), 8854 states have call successors, (8854), 524 states have call predecessors, (8854), 524 states have return successors, (8854), 8685 states have call predecessors, (8854), 8854 states have call successors, (8854) [2024-12-02 10:30:53,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123793 states to 123793 states and 204792 transitions. [2024-12-02 10:30:53,626 INFO L78 Accepts]: Start accepts. Automaton has 123793 states and 204792 transitions. Word has length 692 [2024-12-02 10:30:53,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:53,626 INFO L471 AbstractCegarLoop]: Abstraction has 123793 states and 204792 transitions. [2024-12-02 10:30:53,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:30:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 123793 states and 204792 transitions. [2024-12-02 10:30:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-12-02 10:30:53,661 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:53,662 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:53,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:30:53,662 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:53,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash -908289622, now seen corresponding path program 1 times [2024-12-02 10:30:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:30:53,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125852117] [2024-12-02 10:30:53,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:30:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:30:54,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:30:54,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125852117] [2024-12-02 10:30:54,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125852117] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:54,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:54,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:30:54,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196251079] [2024-12-02 10:30:54,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:54,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:30:54,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:30:54,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:30:54,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:30:54,308 INFO L87 Difference]: Start difference. First operand 123793 states and 204792 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:31:01,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:01,880 INFO L93 Difference]: Finished difference Result 247429 states and 409357 transitions. [2024-12-02 10:31:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:31:01,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 692 [2024-12-02 10:31:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:02,085 INFO L225 Difference]: With dead ends: 247429 [2024-12-02 10:31:02,085 INFO L226 Difference]: Without dead ends: 123793 [2024-12-02 10:31:02,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:31:02,174 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 376 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:02,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 602 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:31:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123793 states. [2024-12-02 10:31:12,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123793 to 123793. [2024-12-02 10:31:12,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123793 states, 114414 states have (on average 1.6315136259548657) internal successors, (186668), 114583 states have internal predecessors, (186668), 8854 states have call successors, (8854), 524 states have call predecessors, (8854), 524 states have return successors, (8854), 8685 states have call predecessors, (8854), 8854 states have call successors, (8854) [2024-12-02 10:31:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123793 states to 123793 states and 204376 transitions. [2024-12-02 10:31:12,566 INFO L78 Accepts]: Start accepts. Automaton has 123793 states and 204376 transitions. Word has length 692 [2024-12-02 10:31:12,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:12,566 INFO L471 AbstractCegarLoop]: Abstraction has 123793 states and 204376 transitions. [2024-12-02 10:31:12,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:31:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand 123793 states and 204376 transitions. [2024-12-02 10:31:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-12-02 10:31:12,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:12,602 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:12,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:31:12,602 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:12,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:12,603 INFO L85 PathProgramCache]: Analyzing trace with hash 536151570, now seen corresponding path program 1 times [2024-12-02 10:31:12,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:31:12,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987556771] [2024-12-02 10:31:12,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:12,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:31:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 177 proven. 138 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2024-12-02 10:31:13,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:31:13,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987556771] [2024-12-02 10:31:13,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987556771] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:13,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148447224] [2024-12-02 10:31:13,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:13,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:31:13,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:31:13,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:31:13,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:31:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:13,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:31:13,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 8883 proven. 84 refuted. 0 times theorem prover too weak. 13293 trivial. 0 not checked. [2024-12-02 10:31:14,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:14,727 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 231 proven. 84 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2024-12-02 10:31:14,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148447224] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:31:14,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:31:14,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-12-02 10:31:14,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700830897] [2024-12-02 10:31:14,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:31:14,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:31:14,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:31:14,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:31:14,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:31:14,730 INFO L87 Difference]: Start difference. First operand 123793 states and 204376 transitions. Second operand has 9 states, 9 states have (on average 34.0) internal successors, (306), 9 states have internal predecessors, (306), 4 states have call successors, (240), 2 states have call predecessors, (240), 4 states have return successors, (241), 4 states have call predecessors, (241), 4 states have call successors, (241) [2024-12-02 10:31:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:25,009 INFO L93 Difference]: Finished difference Result 237233 states and 391351 transitions. [2024-12-02 10:31:25,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 10:31:25,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.0) internal successors, (306), 9 states have internal predecessors, (306), 4 states have call successors, (240), 2 states have call predecessors, (240), 4 states have return successors, (241), 4 states have call predecessors, (241), 4 states have call successors, (241) Word has length 693 [2024-12-02 10:31:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:25,215 INFO L225 Difference]: With dead ends: 237233 [2024-12-02 10:31:25,215 INFO L226 Difference]: Without dead ends: 108245 [2024-12-02 10:31:25,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1406 GetRequests, 1383 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:31:25,297 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 2303 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1096 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:25,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2379 Valid, 2543 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1096 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 10:31:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108245 states. [2024-12-02 10:31:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108245 to 45502. [2024-12-02 10:31:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45502 states, 40782 states have (on average 1.6078416948653818) internal successors, (65571), 40867 states have internal predecessors, (65571), 4455 states have call successors, (4455), 264 states have call predecessors, (4455), 264 states have return successors, (4455), 4370 states have call predecessors, (4455), 4455 states have call successors, (4455) [2024-12-02 10:31:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45502 states to 45502 states and 74481 transitions. [2024-12-02 10:31:30,780 INFO L78 Accepts]: Start accepts. Automaton has 45502 states and 74481 transitions. Word has length 693 [2024-12-02 10:31:30,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:30,781 INFO L471 AbstractCegarLoop]: Abstraction has 45502 states and 74481 transitions. [2024-12-02 10:31:30,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.0) internal successors, (306), 9 states have internal predecessors, (306), 4 states have call successors, (240), 2 states have call predecessors, (240), 4 states have return successors, (241), 4 states have call predecessors, (241), 4 states have call successors, (241) [2024-12-02 10:31:30,781 INFO L276 IsEmpty]: Start isEmpty. Operand 45502 states and 74481 transitions. [2024-12-02 10:31:30,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-12-02 10:31:30,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:30,801 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:30,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:31:31,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:31:31,001 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:31,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:31,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2106070707, now seen corresponding path program 1 times [2024-12-02 10:31:31,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:31:31,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444078828] [2024-12-02 10:31:31,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:31,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:31:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:31:31,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:31:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444078828] [2024-12-02 10:31:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444078828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:31:31,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:31:31,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:31:31,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553803969] [2024-12-02 10:31:31,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:31,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:31:31,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:31:31,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:31:31,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:31:31,165 INFO L87 Difference]: Start difference. First operand 45502 states and 74481 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:31:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:35,731 INFO L93 Difference]: Finished difference Result 82141 states and 134586 transitions. [2024-12-02 10:31:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:31:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 694 [2024-12-02 10:31:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:35,833 INFO L225 Difference]: With dead ends: 82141 [2024-12-02 10:31:35,833 INFO L226 Difference]: Without dead ends: 36772 [2024-12-02 10:31:35,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:31:35,865 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 583 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:35,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 622 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:31:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36772 states. [2024-12-02 10:31:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36772 to 35134. [2024-12-02 10:31:41,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35134 states, 30414 states have (on average 1.586276057078977) internal successors, (48245), 30499 states have internal predecessors, (48245), 4455 states have call successors, (4455), 264 states have call predecessors, (4455), 264 states have return successors, (4455), 4370 states have call predecessors, (4455), 4455 states have call successors, (4455) [2024-12-02 10:31:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35134 states to 35134 states and 57155 transitions. [2024-12-02 10:31:41,739 INFO L78 Accepts]: Start accepts. Automaton has 35134 states and 57155 transitions. Word has length 694 [2024-12-02 10:31:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:41,740 INFO L471 AbstractCegarLoop]: Abstraction has 35134 states and 57155 transitions. [2024-12-02 10:31:41,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:31:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 35134 states and 57155 transitions. [2024-12-02 10:31:41,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-12-02 10:31:41,767 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:41,767 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:41,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:31:41,768 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:41,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:41,768 INFO L85 PathProgramCache]: Analyzing trace with hash -77330641, now seen corresponding path program 1 times [2024-12-02 10:31:41,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:31:41,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592578345] [2024-12-02 10:31:41,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:41,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:31:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 195 proven. 120 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2024-12-02 10:31:43,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:31:43,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592578345] [2024-12-02 10:31:43,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592578345] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:43,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232215107] [2024-12-02 10:31:43,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:43,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:31:43,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:31:43,050 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:31:43,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:31:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:43,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:31:43,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:43,920 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 9903 proven. 102 refuted. 0 times theorem prover too weak. 12255 trivial. 0 not checked. [2024-12-02 10:31:43,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:44,428 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 213 proven. 102 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2024-12-02 10:31:44,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232215107] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:31:44,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:31:44,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2024-12-02 10:31:44,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584100780] [2024-12-02 10:31:44,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:31:44,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:31:44,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:31:44,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:31:44,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:31:44,431 INFO L87 Difference]: Start difference. First operand 35134 states and 57155 transitions. Second operand has 11 states, 11 states have (on average 32.63636363636363) internal successors, (359), 11 states have internal predecessors, (359), 4 states have call successors, (180), 2 states have call predecessors, (180), 4 states have return successors, (182), 4 states have call predecessors, (182), 4 states have call successors, (182) [2024-12-02 10:31:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:50,191 INFO L93 Difference]: Finished difference Result 70687 states and 114747 transitions. [2024-12-02 10:31:50,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:31:50,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 32.63636363636363) internal successors, (359), 11 states have internal predecessors, (359), 4 states have call successors, (180), 2 states have call predecessors, (180), 4 states have return successors, (182), 4 states have call predecessors, (182), 4 states have call successors, (182) Word has length 694 [2024-12-02 10:31:50,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:50,317 INFO L225 Difference]: With dead ends: 70687 [2024-12-02 10:31:50,317 INFO L226 Difference]: Without dead ends: 35686 [2024-12-02 10:31:50,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1401 GetRequests, 1383 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:31:50,353 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 903 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:50,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 1543 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:31:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35686 states. [2024-12-02 10:31:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35686 to 35338. [2024-12-02 10:31:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35338 states, 30593 states have (on average 1.5802307717451705) internal successors, (48344), 30678 states have internal predecessors, (48344), 4455 states have call successors, (4455), 289 states have call predecessors, (4455), 289 states have return successors, (4455), 4370 states have call predecessors, (4455), 4455 states have call successors, (4455) [2024-12-02 10:31:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35338 states to 35338 states and 57254 transitions. [2024-12-02 10:31:56,165 INFO L78 Accepts]: Start accepts. Automaton has 35338 states and 57254 transitions. Word has length 694 [2024-12-02 10:31:56,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:56,166 INFO L471 AbstractCegarLoop]: Abstraction has 35338 states and 57254 transitions. [2024-12-02 10:31:56,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.63636363636363) internal successors, (359), 11 states have internal predecessors, (359), 4 states have call successors, (180), 2 states have call predecessors, (180), 4 states have return successors, (182), 4 states have call predecessors, (182), 4 states have call successors, (182) [2024-12-02 10:31:56,166 INFO L276 IsEmpty]: Start isEmpty. Operand 35338 states and 57254 transitions. [2024-12-02 10:31:56,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-12-02 10:31:56,180 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:56,180 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:56,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 10:31:56,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb038dc3-5715-4085-bcaa-114df0ca42c8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 10:31:56,381 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:56,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:56,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1805679139, now seen corresponding path program 1 times [2024-12-02 10:31:56,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:31:56,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135441803] [2024-12-02 10:31:56,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:56,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:31:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:31:57,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:31:57,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135441803] [2024-12-02 10:31:57,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135441803] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:31:57,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:31:57,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:31:57,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028654195] [2024-12-02 10:31:57,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:57,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:31:57,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:31:57,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:31:57,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:31:57,221 INFO L87 Difference]: Start difference. First operand 35338 states and 57254 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:32:06,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:06,240 INFO L93 Difference]: Finished difference Result 81849 states and 132431 transitions. [2024-12-02 10:32:06,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:32:06,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 695 [2024-12-02 10:32:06,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:06,372 INFO L225 Difference]: With dead ends: 81849 [2024-12-02 10:32:06,372 INFO L226 Difference]: Without dead ends: 46648 [2024-12-02 10:32:06,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:32:06,407 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 2179 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 3476 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:06,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2179 Valid, 3476 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 10:32:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46648 states. [2024-12-02 10:32:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46648 to 35928. [2024-12-02 10:32:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35928 states, 31183 states have (on average 1.5779110412724882) internal successors, (49204), 31268 states have internal predecessors, (49204), 4455 states have call successors, (4455), 289 states have call predecessors, (4455), 289 states have return successors, (4455), 4370 states have call predecessors, (4455), 4455 states have call successors, (4455) [2024-12-02 10:32:12,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35928 states to 35928 states and 58114 transitions. [2024-12-02 10:32:12,471 INFO L78 Accepts]: Start accepts. Automaton has 35928 states and 58114 transitions. Word has length 695 [2024-12-02 10:32:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:12,471 INFO L471 AbstractCegarLoop]: Abstraction has 35928 states and 58114 transitions. [2024-12-02 10:32:12,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-12-02 10:32:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 35928 states and 58114 transitions. [2024-12-02 10:32:12,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-12-02 10:32:12,485 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:12,486 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:12,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 10:32:12,486 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:12,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:12,486 INFO L85 PathProgramCache]: Analyzing trace with hash -238921189, now seen corresponding path program 1 times [2024-12-02 10:32:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:32:12,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100347430] [2024-12-02 10:32:12,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:12,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:32:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-12-02 10:32:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:32:52,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100347430] [2024-12-02 10:32:52,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100347430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:32:52,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:32:52,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 10:32:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185439761] [2024-12-02 10:32:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:52,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 10:32:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:32:52,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 10:32:52,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:32:52,648 INFO L87 Difference]: Start difference. First operand 35928 states and 58114 transitions. Second operand has 22 states, 22 states have (on average 7.636363636363637) internal successors, (168), 22 states have internal predecessors, (168), 5 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 5 states have call predecessors, (106), 5 states have call successors, (106)