./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-7.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_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/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_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/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_b02ff69f-d924-405e-ae48-464f6d484c40/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 bce3f4946b012785e1af0be5b8b016db5fe69db64eb839688905085209631246 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:05:45,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:05:45,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:05:45,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:05:45,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:05:45,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:05:45,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:05:45,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:05:45,265 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:05:45,265 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:05:45,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:05:45,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:05:45,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:05:45,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:05:45,267 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:05:45,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:05:45,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:05:45,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:05:45,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:05:45,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:05:45,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:05:45,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:05:45,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:05:45,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:05:45,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:05:45,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:05:45,268 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:05:45,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:05:45,268 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:05:45,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:05:45,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:05:45,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:05:45,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:05:45,270 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:05:45,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:05:45,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:05:45,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:05:45,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:05:45,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:05:45,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:05:45,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:05:45,271 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_b02ff69f-d924-405e-ae48-464f6d484c40/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 -> bce3f4946b012785e1af0be5b8b016db5fe69db64eb839688905085209631246 [2024-12-02 06:05:45,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:05:45,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:05:45,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:05:45,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:05:45,538 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:05:45,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-7.i [2024-12-02 06:05:48,847 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/data/107365329/63c8ef0174f343adbf7f30334d637669/FLAG597b57115 [2024-12-02 06:05:49,122 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:05:49,123 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-7.i [2024-12-02 06:05:49,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/data/107365329/63c8ef0174f343adbf7f30334d637669/FLAG597b57115 [2024-12-02 06:05:49,148 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/data/107365329/63c8ef0174f343adbf7f30334d637669 [2024-12-02 06:05:49,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:05:49,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:05:49,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:05:49,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:05:49,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:05:49,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be8058c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49, skipping insertion in model container [2024-12-02 06:05:49,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,189 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:05:49,329 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_b02ff69f-d924-405e-ae48-464f6d484c40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-7.i[915,928] [2024-12-02 06:05:49,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:05:49,530 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:05:49,540 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_b02ff69f-d924-405e-ae48-464f6d484c40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-7.i[915,928] [2024-12-02 06:05:49,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:05:49,647 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:05:49,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49 WrapperNode [2024-12-02 06:05:49,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:05:49,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:05:49,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:05:49,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:05:49,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,747 INFO L138 Inliner]: procedures = 26, calls = 114, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 903 [2024-12-02 06:05:49,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:05:49,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:05:49,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:05:49,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:05:49,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,769 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,797 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 06:05:49,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,830 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:05:49,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:05:49,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:05:49,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:05:49,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (1/1) ... [2024-12-02 06:05:49,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:05:49,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:05:49,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:05:49,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:05:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:05:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:05:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:05:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:05:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:05:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:05:50,080 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:05:50,083 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:05:51,439 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-02 06:05:51,439 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:05:51,459 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:05:51,459 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:05:51,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:51 BoogieIcfgContainer [2024-12-02 06:05:51,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:05:51,463 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:05:51,463 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:05:51,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:05:51,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:05:49" (1/3) ... [2024-12-02 06:05:51,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c72e44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:51, skipping insertion in model container [2024-12-02 06:05:51,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:49" (2/3) ... [2024-12-02 06:05:51,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c72e44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:51, skipping insertion in model container [2024-12-02 06:05:51,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:51" (3/3) ... [2024-12-02 06:05:51,471 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-7.i [2024-12-02 06:05:51,484 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:05:51,487 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-7.i that has 2 procedures, 362 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:05:51,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:05:51,562 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;@212987ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:05:51,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:05:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 258 states have (on average 1.5852713178294573) internal successors, (409), 259 states have internal predecessors, (409), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 06:05:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-12-02 06:05:51,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:51,598 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:51,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:51,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -260715462, now seen corresponding path program 1 times [2024-12-02 06:05:51,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:51,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502741882] [2024-12-02 06:05:51,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:51,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 20000 trivial. 0 not checked. [2024-12-02 06:05:52,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502741882] [2024-12-02 06:05:52,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502741882] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:05:52,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634031488] [2024-12-02 06:05:52,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:52,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:05:52,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:05:52,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:05:52,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:05:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:52,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:05:52,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 20000 trivial. 0 not checked. [2024-12-02 06:05:52,810 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:05:52,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634031488] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:52,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:05:52,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:05:52,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493579280] [2024-12-02 06:05:52,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:52,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:05:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:52,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:05:52,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:05:52,844 INFO L87 Difference]: Start difference. First operand has 362 states, 258 states have (on average 1.5852713178294573) internal successors, (409), 259 states have internal predecessors, (409), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 2 states have call successors, (101), 2 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 2 states have call successors, (101) [2024-12-02 06:05:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:52,912 INFO L93 Difference]: Finished difference Result 717 states and 1317 transitions. [2024-12-02 06:05:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:05:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 2 states have call successors, (101), 2 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 2 states have call successors, (101) Word has length 656 [2024-12-02 06:05:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:52,924 INFO L225 Difference]: With dead ends: 717 [2024-12-02 06:05:52,924 INFO L226 Difference]: Without dead ends: 358 [2024-12-02 06:05:52,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:05:52,933 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:52,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:52,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-12-02 06:05:53,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-12-02 06:05:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 255 states have (on average 1.5686274509803921) internal successors, (400), 255 states have internal predecessors, (400), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 06:05:53,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 602 transitions. [2024-12-02 06:05:53,026 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 602 transitions. Word has length 656 [2024-12-02 06:05:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:53,027 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 602 transitions. [2024-12-02 06:05:53,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 2 states have call successors, (101), 2 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 2 states have call successors, (101) [2024-12-02 06:05:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 602 transitions. [2024-12-02 06:05:53,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2024-12-02 06:05:53,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:53,048 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:53,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:05:53,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02ff69f-d924-405e-ae48-464f6d484c40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:05:53,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:53,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:53,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1721716823, now seen corresponding path program 1 times [2024-12-02 06:05:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:53,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180102778] [2024-12-02 06:05:53,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:05:54,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180102778] [2024-12-02 06:05:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180102778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:54,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:54,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:54,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55593914] [2024-12-02 06:05:54,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:54,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:54,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:54,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:54,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:54,048 INFO L87 Difference]: Start difference. First operand 358 states and 602 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:54,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:54,156 INFO L93 Difference]: Finished difference Result 957 states and 1616 transitions. [2024-12-02 06:05:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:54,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 657 [2024-12-02 06:05:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:54,165 INFO L225 Difference]: With dead ends: 957 [2024-12-02 06:05:54,165 INFO L226 Difference]: Without dead ends: 602 [2024-12-02 06:05:54,167 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 06:05:54,168 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 382 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:54,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1180 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:54,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-12-02 06:05:54,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 599. [2024-12-02 06:05:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 456 states have (on average 1.605263157894737) internal successors, (732), 457 states have internal predecessors, (732), 140 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (140), 139 states have call predecessors, (140), 140 states have call successors, (140) [2024-12-02 06:05:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1012 transitions. [2024-12-02 06:05:54,251 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1012 transitions. Word has length 657 [2024-12-02 06:05:54,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:54,253 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 1012 transitions. [2024-12-02 06:05:54,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1012 transitions. [2024-12-02 06:05:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-12-02 06:05:54,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:54,281 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:54,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:05:54,282 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:54,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:54,283 INFO L85 PathProgramCache]: Analyzing trace with hash -806688486, now seen corresponding path program 1 times [2024-12-02 06:05:54,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:54,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627815267] [2024-12-02 06:05:54,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:54,788 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:05:54,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:54,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627815267] [2024-12-02 06:05:54,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627815267] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:54,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:54,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:54,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909209860] [2024-12-02 06:05:54,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:54,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:54,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:54,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:54,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:54,794 INFO L87 Difference]: Start difference. First operand 599 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:54,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:54,906 INFO L93 Difference]: Finished difference Result 1645 states and 2778 transitions. [2024-12-02 06:05:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:54,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 658 [2024-12-02 06:05:54,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:54,919 INFO L225 Difference]: With dead ends: 1645 [2024-12-02 06:05:54,919 INFO L226 Difference]: Without dead ends: 1049 [2024-12-02 06:05:54,922 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 06:05:54,922 INFO L435 NwaCegarLoop]: 728 mSDtfsCounter, 386 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:54,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1316 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:54,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-12-02 06:05:55,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1046. [2024-12-02 06:05:55,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 801 states have (on average 1.6029962546816479) internal successors, (1284), 804 states have internal predecessors, (1284), 240 states have call successors, (240), 4 states have call predecessors, (240), 4 states have return successors, (240), 237 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 06:05:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1764 transitions. [2024-12-02 06:05:55,047 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1764 transitions. Word has length 658 [2024-12-02 06:05:55,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:55,049 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1764 transitions. [2024-12-02 06:05:55,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:55,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1764 transitions. [2024-12-02 06:05:55,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-12-02 06:05:55,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:55,057 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:55,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:05:55,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:55,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:55,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1779498910, now seen corresponding path program 1 times [2024-12-02 06:05:55,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:55,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728793476] [2024-12-02 06:05:55,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:55,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:55,486 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:05:55,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:55,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728793476] [2024-12-02 06:05:55,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728793476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:55,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:55,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:55,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059451276] [2024-12-02 06:05:55,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:55,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:55,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:55,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:55,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:55,489 INFO L87 Difference]: Start difference. First operand 1046 states and 1764 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:55,642 INFO L93 Difference]: Finished difference Result 3124 states and 5270 transitions. [2024-12-02 06:05:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 658 [2024-12-02 06:05:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:55,658 INFO L225 Difference]: With dead ends: 3124 [2024-12-02 06:05:55,658 INFO L226 Difference]: Without dead ends: 2081 [2024-12-02 06:05:55,663 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 06:05:55,663 INFO L435 NwaCegarLoop]: 961 mSDtfsCounter, 547 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:55,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1553 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-12-02 06:05:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2077. [2024-12-02 06:05:55,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1588 states have (on average 1.5938287153652393) internal successors, (2531), 1594 states have internal predecessors, (2531), 480 states have call successors, (480), 8 states have call predecessors, (480), 8 states have return successors, (480), 474 states have call predecessors, (480), 480 states have call successors, (480) [2024-12-02 06:05:55,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 3491 transitions. [2024-12-02 06:05:55,882 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 3491 transitions. Word has length 658 [2024-12-02 06:05:55,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:55,884 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 3491 transitions. [2024-12-02 06:05:55,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:55,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 3491 transitions. [2024-12-02 06:05:55,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-12-02 06:05:55,892 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:55,893 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:55,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:05:55,893 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:55,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:55,894 INFO L85 PathProgramCache]: Analyzing trace with hash -521323680, now seen corresponding path program 1 times [2024-12-02 06:05:55,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:55,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066831580] [2024-12-02 06:05:55,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:55,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:56,274 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:05:56,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:56,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066831580] [2024-12-02 06:05:56,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066831580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:56,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:56,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:56,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488147225] [2024-12-02 06:05:56,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:56,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:56,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:56,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:56,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:56,277 INFO L87 Difference]: Start difference. First operand 2077 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:56,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:56,515 INFO L93 Difference]: Finished difference Result 5953 states and 9955 transitions. [2024-12-02 06:05:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:56,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 658 [2024-12-02 06:05:56,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:56,541 INFO L225 Difference]: With dead ends: 5953 [2024-12-02 06:05:56,542 INFO L226 Difference]: Without dead ends: 3879 [2024-12-02 06:05:56,550 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 06:05:56,550 INFO L435 NwaCegarLoop]: 1090 mSDtfsCounter, 521 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:56,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1685 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:56,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2024-12-02 06:05:56,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 2173. [2024-12-02 06:05:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1684 states have (on average 1.581353919239905) internal successors, (2663), 1690 states have internal predecessors, (2663), 480 states have call successors, (480), 8 states have call predecessors, (480), 8 states have return successors, (480), 474 states have call predecessors, (480), 480 states have call successors, (480) [2024-12-02 06:05:56,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3623 transitions. [2024-12-02 06:05:56,805 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3623 transitions. Word has length 658 [2024-12-02 06:05:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:56,806 INFO L471 AbstractCegarLoop]: Abstraction has 2173 states and 3623 transitions. [2024-12-02 06:05:56,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:56,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3623 transitions. [2024-12-02 06:05:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-12-02 06:05:56,812 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:56,813 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:56,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:05:56,813 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:56,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1108129694, now seen corresponding path program 1 times [2024-12-02 06:05:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:56,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677797811] [2024-12-02 06:05:56,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:56,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:05:57,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:57,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677797811] [2024-12-02 06:05:57,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677797811] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:57,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:57,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:57,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280550577] [2024-12-02 06:05:57,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:57,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:57,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:57,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:57,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:57,505 INFO L87 Difference]: Start difference. First operand 2173 states and 3623 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:57,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:57,582 INFO L93 Difference]: Finished difference Result 3264 states and 5454 transitions. [2024-12-02 06:05:57,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:57,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 658 [2024-12-02 06:05:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:57,590 INFO L225 Difference]: With dead ends: 3264 [2024-12-02 06:05:57,590 INFO L226 Difference]: Without dead ends: 1094 [2024-12-02 06:05:57,594 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 06:05:57,595 INFO L435 NwaCegarLoop]: 594 mSDtfsCounter, 408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:57,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 594 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-12-02 06:05:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2024-12-02 06:05:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 849 states have (on average 1.5665488810365136) internal successors, (1330), 852 states have internal predecessors, (1330), 240 states have call successors, (240), 4 states have call predecessors, (240), 4 states have return successors, (240), 237 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 06:05:57,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1810 transitions. [2024-12-02 06:05:57,682 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1810 transitions. Word has length 658 [2024-12-02 06:05:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:57,682 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1810 transitions. [2024-12-02 06:05:57,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:57,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1810 transitions. [2024-12-02 06:05:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-12-02 06:05:57,687 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:57,687 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:57,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:05:57,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:57,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1646439522, now seen corresponding path program 1 times [2024-12-02 06:05:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:57,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922175913] [2024-12-02 06:05:57,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:57,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:05:58,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:58,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922175913] [2024-12-02 06:05:58,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922175913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:58,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:58,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:58,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639484999] [2024-12-02 06:05:58,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:58,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:58,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:58,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:58,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:58,334 INFO L87 Difference]: Start difference. First operand 1094 states and 1810 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:58,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:58,792 INFO L93 Difference]: Finished difference Result 3922 states and 6507 transitions. [2024-12-02 06:05:58,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:58,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 658 [2024-12-02 06:05:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:58,803 INFO L225 Difference]: With dead ends: 3922 [2024-12-02 06:05:58,804 INFO L226 Difference]: Without dead ends: 2831 [2024-12-02 06:05:58,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:05:58,807 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 843 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:58,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 2919 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:05:58,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2024-12-02 06:05:58,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2819. [2024-12-02 06:05:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2358 states have (on average 1.6055979643765903) internal successors, (3786), 2369 states have internal predecessors, (3786), 448 states have call successors, (448), 12 states have call predecessors, (448), 12 states have return successors, (448), 437 states have call predecessors, (448), 448 states have call successors, (448) [2024-12-02 06:05:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 4682 transitions. [2024-12-02 06:05:58,951 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 4682 transitions. Word has length 658 [2024-12-02 06:05:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:58,952 INFO L471 AbstractCegarLoop]: Abstraction has 2819 states and 4682 transitions. [2024-12-02 06:05:58,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:58,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 4682 transitions. [2024-12-02 06:05:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-12-02 06:05:58,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:58,958 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:58,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:05:58,958 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:58,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:58,959 INFO L85 PathProgramCache]: Analyzing trace with hash 769396828, now seen corresponding path program 1 times [2024-12-02 06:05:58,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:58,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168836017] [2024-12-02 06:05:58,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:58,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:05:59,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:59,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168836017] [2024-12-02 06:05:59,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168836017] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:59,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:59,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:59,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415183347] [2024-12-02 06:05:59,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:59,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:59,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:59,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:59,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:59,475 INFO L87 Difference]: Start difference. First operand 2819 states and 4682 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:59,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:59,565 INFO L93 Difference]: Finished difference Result 5641 states and 9373 transitions. [2024-12-02 06:05:59,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:59,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 658 [2024-12-02 06:05:59,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:59,577 INFO L225 Difference]: With dead ends: 5641 [2024-12-02 06:05:59,577 INFO L226 Difference]: Without dead ends: 2825 [2024-12-02 06:05:59,582 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 06:05:59,582 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 0 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:59,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1186 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:59,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2024-12-02 06:05:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 2825. [2024-12-02 06:05:59,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2364 states have (on average 1.6040609137055837) internal successors, (3792), 2375 states have internal predecessors, (3792), 448 states have call successors, (448), 12 states have call predecessors, (448), 12 states have return successors, (448), 437 states have call predecessors, (448), 448 states have call successors, (448) [2024-12-02 06:05:59,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4688 transitions. [2024-12-02 06:05:59,689 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4688 transitions. Word has length 658 [2024-12-02 06:05:59,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:59,690 INFO L471 AbstractCegarLoop]: Abstraction has 2825 states and 4688 transitions. [2024-12-02 06:05:59,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:05:59,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4688 transitions. [2024-12-02 06:05:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:05:59,698 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:59,698 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:59,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:05:59,699 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:59,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:59,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1831193425, now seen corresponding path program 1 times [2024-12-02 06:05:59,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:59,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337302988] [2024-12-02 06:05:59,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:06:00,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:00,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337302988] [2024-12-02 06:06:00,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337302988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:00,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:00,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:06:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706038147] [2024-12-02 06:06:00,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:00,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:06:00,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:00,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:06:00,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:06:00,058 INFO L87 Difference]: Start difference. First operand 2825 states and 4688 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:00,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:00,685 INFO L93 Difference]: Finished difference Result 9456 states and 15687 transitions. [2024-12-02 06:06:00,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:06:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 659 [2024-12-02 06:06:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:00,715 INFO L225 Difference]: With dead ends: 9456 [2024-12-02 06:06:00,715 INFO L226 Difference]: Without dead ends: 6634 [2024-12-02 06:06:00,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 06:06:00,723 INFO L435 NwaCegarLoop]: 790 mSDtfsCounter, 724 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:00,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1834 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:06:00,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2024-12-02 06:06:01,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 5204. [2024-12-02 06:06:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 4485 states have (on average 1.6220735785953178) internal successors, (7275), 4506 states have internal predecessors, (7275), 696 states have call successors, (696), 22 states have call predecessors, (696), 22 states have return successors, (696), 675 states have call predecessors, (696), 696 states have call successors, (696) [2024-12-02 06:06:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 8667 transitions. [2024-12-02 06:06:01,274 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 8667 transitions. Word has length 659 [2024-12-02 06:06:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:01,276 INFO L471 AbstractCegarLoop]: Abstraction has 5204 states and 8667 transitions. [2024-12-02 06:06:01,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 8667 transitions. [2024-12-02 06:06:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:06:01,298 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:01,299 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:01,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:06:01,299 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:01,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:01,300 INFO L85 PathProgramCache]: Analyzing trace with hash 466284176, now seen corresponding path program 1 times [2024-12-02 06:06:01,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:01,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838588570] [2024-12-02 06:06:01,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:01,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:06:01,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:01,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838588570] [2024-12-02 06:06:01,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838588570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:01,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:01,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:01,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937408378] [2024-12-02 06:06:01,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:01,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:01,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:01,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:01,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:01,782 INFO L87 Difference]: Start difference. First operand 5204 states and 8667 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:02,108 INFO L93 Difference]: Finished difference Result 10417 states and 17340 transitions. [2024-12-02 06:06:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:02,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 659 [2024-12-02 06:06:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:02,142 INFO L225 Difference]: With dead ends: 10417 [2024-12-02 06:06:02,142 INFO L226 Difference]: Without dead ends: 5216 [2024-12-02 06:06:02,153 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 06:06:02,154 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 350 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:02,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1417 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:06:02,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5216 states. [2024-12-02 06:06:02,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5216 to 4478. [2024-12-02 06:06:02,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4478 states, 3995 states have (on average 1.6548185231539425) internal successors, (6611), 4008 states have internal predecessors, (6611), 466 states have call successors, (466), 16 states have call predecessors, (466), 16 states have return successors, (466), 453 states have call predecessors, (466), 466 states have call successors, (466) [2024-12-02 06:06:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4478 states to 4478 states and 7543 transitions. [2024-12-02 06:06:02,446 INFO L78 Accepts]: Start accepts. Automaton has 4478 states and 7543 transitions. Word has length 659 [2024-12-02 06:06:02,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:02,447 INFO L471 AbstractCegarLoop]: Abstraction has 4478 states and 7543 transitions. [2024-12-02 06:06:02,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:02,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states and 7543 transitions. [2024-12-02 06:06:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:06:02,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:02,462 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:02,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:06:02,462 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:02,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:02,463 INFO L85 PathProgramCache]: Analyzing trace with hash 332270670, now seen corresponding path program 1 times [2024-12-02 06:06:02,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:02,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045213124] [2024-12-02 06:06:02,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:02,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:06:03,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:03,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045213124] [2024-12-02 06:06:03,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045213124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:03,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:03,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:06:03,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430671258] [2024-12-02 06:06:03,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:03,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:06:03,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:03,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:06:03,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:03,379 INFO L87 Difference]: Start difference. First operand 4478 states and 7543 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:05,572 INFO L93 Difference]: Finished difference Result 19806 states and 33169 transitions. [2024-12-02 06:06:05,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:06:05,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 659 [2024-12-02 06:06:05,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:05,619 INFO L225 Difference]: With dead ends: 19806 [2024-12-02 06:06:05,620 INFO L226 Difference]: Without dead ends: 15331 [2024-12-02 06:06:05,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:06:05,629 INFO L435 NwaCegarLoop]: 732 mSDtfsCounter, 1000 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:05,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 2409 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 06:06:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2024-12-02 06:06:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 9126. [2024-12-02 06:06:06,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9126 states, 8199 states have (on average 1.659348701061105) internal successors, (13605), 8226 states have internal predecessors, (13605), 894 states have call successors, (894), 32 states have call predecessors, (894), 32 states have return successors, (894), 867 states have call predecessors, (894), 894 states have call successors, (894) [2024-12-02 06:06:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9126 states to 9126 states and 15393 transitions. [2024-12-02 06:06:06,244 INFO L78 Accepts]: Start accepts. Automaton has 9126 states and 15393 transitions. Word has length 659 [2024-12-02 06:06:06,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:06,245 INFO L471 AbstractCegarLoop]: Abstraction has 9126 states and 15393 transitions. [2024-12-02 06:06:06,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 9126 states and 15393 transitions. [2024-12-02 06:06:06,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:06:06,259 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:06,259 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:06,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:06:06,260 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:06,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:06,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1593187920, now seen corresponding path program 1 times [2024-12-02 06:06:06,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:06,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325334868] [2024-12-02 06:06:06,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:06,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:06,842 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:06:06,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:06,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325334868] [2024-12-02 06:06:06,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325334868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:06,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:06,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:06,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997615149] [2024-12-02 06:06:06,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:06,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:06,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:06,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:06,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:06,845 INFO L87 Difference]: Start difference. First operand 9126 states and 15393 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:07,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:07,768 INFO L93 Difference]: Finished difference Result 26488 states and 44629 transitions. [2024-12-02 06:06:07,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:07,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 659 [2024-12-02 06:06:07,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:07,815 INFO L225 Difference]: With dead ends: 26488 [2024-12-02 06:06:07,815 INFO L226 Difference]: Without dead ends: 17365 [2024-12-02 06:06:07,828 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 06:06:07,829 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 394 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:07,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1398 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:06:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17365 states. [2024-12-02 06:06:08,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17365 to 17363. [2024-12-02 06:06:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17363 states, 15510 states have (on average 1.647840103159252) internal successors, (25558), 15564 states have internal predecessors, (25558), 1788 states have call successors, (1788), 64 states have call predecessors, (1788), 64 states have return successors, (1788), 1734 states have call predecessors, (1788), 1788 states have call successors, (1788) [2024-12-02 06:06:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17363 states to 17363 states and 29134 transitions. [2024-12-02 06:06:08,740 INFO L78 Accepts]: Start accepts. Automaton has 17363 states and 29134 transitions. Word has length 659 [2024-12-02 06:06:08,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:08,741 INFO L471 AbstractCegarLoop]: Abstraction has 17363 states and 29134 transitions. [2024-12-02 06:06:08,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:08,742 INFO L276 IsEmpty]: Start isEmpty. Operand 17363 states and 29134 transitions. [2024-12-02 06:06:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:06:08,776 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:08,776 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:08,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:06:08,776 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:08,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:08,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1011542924, now seen corresponding path program 1 times [2024-12-02 06:06:08,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:08,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507176460] [2024-12-02 06:06:08,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:08,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:06:10,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:10,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507176460] [2024-12-02 06:06:10,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507176460] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:10,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:10,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:06:10,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89662944] [2024-12-02 06:06:10,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:10,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:06:10,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:10,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:06:10,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:10,037 INFO L87 Difference]: Start difference. First operand 17363 states and 29134 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:12,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:12,412 INFO L93 Difference]: Finished difference Result 74427 states and 125386 transitions. [2024-12-02 06:06:12,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:06:12,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 659 [2024-12-02 06:06:12,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:12,569 INFO L225 Difference]: With dead ends: 74427 [2024-12-02 06:06:12,570 INFO L226 Difference]: Without dead ends: 57067 [2024-12-02 06:06:12,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:12,606 INFO L435 NwaCegarLoop]: 927 mSDtfsCounter, 1062 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:12,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 2580 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:06:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57067 states. [2024-12-02 06:06:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57067 to 28611. [2024-12-02 06:06:14,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28611 states, 26558 states have (on average 1.685367874086904) internal successors, (44760), 26620 states have internal predecessors, (44760), 1980 states have call successors, (1980), 72 states have call predecessors, (1980), 72 states have return successors, (1980), 1918 states have call predecessors, (1980), 1980 states have call successors, (1980) [2024-12-02 06:06:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28611 states to 28611 states and 48720 transitions. [2024-12-02 06:06:14,638 INFO L78 Accepts]: Start accepts. Automaton has 28611 states and 48720 transitions. Word has length 659 [2024-12-02 06:06:14,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:14,639 INFO L471 AbstractCegarLoop]: Abstraction has 28611 states and 48720 transitions. [2024-12-02 06:06:14,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:14,640 INFO L276 IsEmpty]: Start isEmpty. Operand 28611 states and 48720 transitions. [2024-12-02 06:06:14,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:06:14,663 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:14,663 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:14,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:06:14,663 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:14,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:14,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1716666422, now seen corresponding path program 1 times [2024-12-02 06:06:14,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:14,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107441814] [2024-12-02 06:06:14,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:14,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:06:15,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:15,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107441814] [2024-12-02 06:06:15,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107441814] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:15,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:15,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:15,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540445842] [2024-12-02 06:06:15,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:15,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:15,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:15,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:15,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:15,388 INFO L87 Difference]: Start difference. First operand 28611 states and 48720 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:17,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:17,241 INFO L93 Difference]: Finished difference Result 82645 states and 140632 transitions. [2024-12-02 06:06:17,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:17,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) Word has length 659 [2024-12-02 06:06:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:17,369 INFO L225 Difference]: With dead ends: 82645 [2024-12-02 06:06:17,369 INFO L226 Difference]: Without dead ends: 54037 [2024-12-02 06:06:17,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:06:17,410 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 346 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:17,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1283 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:06:17,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54037 states. [2024-12-02 06:06:19,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54037 to 54027. [2024-12-02 06:06:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54027 states, 50070 states have (on average 1.6807269822248851) internal successors, (84154), 50196 states have internal predecessors, (84154), 3812 states have call successors, (3812), 144 states have call predecessors, (3812), 144 states have return successors, (3812), 3686 states have call predecessors, (3812), 3812 states have call successors, (3812) [2024-12-02 06:06:19,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54027 states to 54027 states and 91778 transitions. [2024-12-02 06:06:19,844 INFO L78 Accepts]: Start accepts. Automaton has 54027 states and 91778 transitions. Word has length 659 [2024-12-02 06:06:19,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:19,845 INFO L471 AbstractCegarLoop]: Abstraction has 54027 states and 91778 transitions. [2024-12-02 06:06:19,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 1 states have call predecessors, (101), 1 states have call successors, (101) [2024-12-02 06:06:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 54027 states and 91778 transitions. [2024-12-02 06:06:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:06:19,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:19,991 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:19,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:06:19,992 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:19,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:19,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1323474450, now seen corresponding path program 1 times [2024-12-02 06:06:19,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:19,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270939728] [2024-12-02 06:06:19,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:19,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:22,411 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:06:22,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:22,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270939728] [2024-12-02 06:06:22,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270939728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:22,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:22,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:06:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194771249] [2024-12-02 06:06:22,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:22,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:06:22,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:22,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:06:22,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:06:22,415 INFO L87 Difference]: Start difference. First operand 54027 states and 91778 transitions. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 2 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2024-12-02 06:06:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:27,322 INFO L93 Difference]: Finished difference Result 134359 states and 228040 transitions. [2024-12-02 06:06:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:06:27,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 2 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 659 [2024-12-02 06:06:27,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:27,443 INFO L225 Difference]: With dead ends: 134359 [2024-12-02 06:06:27,443 INFO L226 Difference]: Without dead ends: 80335 [2024-12-02 06:06:27,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:06:27,496 INFO L435 NwaCegarLoop]: 760 mSDtfsCounter, 2714 mSDsluCounter, 3256 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2714 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:27,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2714 Valid, 4016 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 06:06:27,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80335 states. [2024-12-02 06:06:30,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80335 to 63903. [2024-12-02 06:06:30,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63903 states, 59402 states have (on average 1.682232921450456) internal successors, (99928), 59544 states have internal predecessors, (99928), 4292 states have call successors, (4292), 208 states have call predecessors, (4292), 208 states have return successors, (4292), 4150 states have call predecessors, (4292), 4292 states have call successors, (4292) [2024-12-02 06:06:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63903 states to 63903 states and 108512 transitions. [2024-12-02 06:06:30,273 INFO L78 Accepts]: Start accepts. Automaton has 63903 states and 108512 transitions. Word has length 659 [2024-12-02 06:06:30,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:30,274 INFO L471 AbstractCegarLoop]: Abstraction has 63903 states and 108512 transitions. [2024-12-02 06:06:30,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 2 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2024-12-02 06:06:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand 63903 states and 108512 transitions. [2024-12-02 06:06:30,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-12-02 06:06:30,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:30,330 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:30,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:06:30,330 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:30,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:30,331 INFO L85 PathProgramCache]: Analyzing trace with hash -584983340, now seen corresponding path program 1 times [2024-12-02 06:06:30,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:30,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576362091] [2024-12-02 06:06:30,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:30,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:06,656 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification. DAG size of input: 241 DAG size of output: 232 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:07:17,142 WARN L286 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 240 DAG size of output: 233 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:07:47,345 WARN L286 SmtUtils]: Spent 8.58s on a formula simplification. DAG size of input: 168 DAG size of output: 161 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:07:58,116 WARN L286 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 174 DAG size of output: 167 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:08:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2024-12-02 06:08:05,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:05,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576362091] [2024-12-02 06:08:05,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576362091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:05,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:08:05,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2024-12-02 06:08:05,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561243869] [2024-12-02 06:08:05,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:05,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 06:08:05,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:05,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 06:08:05,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2024-12-02 06:08:05,454 INFO L87 Difference]: Start difference. First operand 63903 states and 108512 transitions. Second operand has 30 states, 30 states have (on average 5.233333333333333) internal successors, (157), 30 states have internal predecessors, (157), 3 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 3 states have call predecessors, (101), 3 states have call successors, (101) [2024-12-02 06:09:09,270 WARN L286 SmtUtils]: Spent 14.87s on a formula simplification. DAG size of input: 398 DAG size of output: 212 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:09:16,807 WARN L286 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 362 DAG size of output: 188 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:09:26,241 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 425 DAG size of output: 249 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:09:33,719 WARN L286 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 406 DAG size of output: 221 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:09:40,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 06:09:45,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 06:09:53,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 06:09:55,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 06:10:03,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 06:10:09,864 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 309 DAG size of output: 205 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:10:16,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 06:11:55,254 WARN L286 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 358 DAG size of output: 176 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:12:20,989 WARN L286 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 361 DAG size of output: 178 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:13:36,176 WARN L286 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 452 DAG size of output: 282 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:13:51,848 WARN L286 SmtUtils]: Spent 7.58s on a formula simplification. DAG size of input: 366 DAG size of output: 245 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:14:23,670 WARN L286 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 445 DAG size of output: 276 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:15:01,492 WARN L286 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 473 DAG size of output: 293 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:15:21,654 WARN L286 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 466 DAG size of output: 287 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:15:29,642 WARN L286 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 387 DAG size of output: 232 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:16:43,186 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 454 DAG size of output: 281 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:17:09,039 WARN L286 SmtUtils]: Spent 8.61s on a formula simplification. DAG size of input: 440 DAG size of output: 275 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:17:22,457 WARN L286 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 433 DAG size of output: 270 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)