./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b9c715d8cb23287a05b9435442c36477a106d8e300e032a49274bb7d1c56a65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:19:23,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:19:23,746 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:19:23,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:19:23,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:19:23,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:19:23,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:19:23,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:19:23,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:19:23,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:19:23,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:19:23,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:19:23,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:19:23,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:19:23,795 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:19:23,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:19:23,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:19:23,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:19:23,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:19:23,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:19:23,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:19:23,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:19:23,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:19:23,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:19:23,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:19:23,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:19:23,798 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:19:23,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:19:23,798 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:19:23,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:19:23,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:19:23,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:19:23,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:19:23,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:19:23,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:19:23,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:19:23,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:19:23,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:19:23,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:19:23,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:19:23,800 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:19:23,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:19:23,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:19:23,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:19:23,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:19:23,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:19:23,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:19:23,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:19:23,801 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_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b9c715d8cb23287a05b9435442c36477a106d8e300e032a49274bb7d1c56a65 [2024-11-27 23:19:24,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:19:24,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:19:24,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:19:24,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:19:24,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:19:24,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-27.i [2024-11-27 23:19:27,757 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/data/93bcee2b3/2c7d8354427841488ce130e208e32a5d/FLAG256d74211 [2024-11-27 23:19:28,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:19:28,286 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-27.i [2024-11-27 23:19:28,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/data/93bcee2b3/2c7d8354427841488ce130e208e32a5d/FLAG256d74211 [2024-11-27 23:19:28,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/data/93bcee2b3/2c7d8354427841488ce130e208e32a5d [2024-11-27 23:19:28,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:19:28,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:19:28,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:19:28,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:19:28,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:19:28,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:19:28" (1/1) ... [2024-11-27 23:19:28,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55dfe8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:28, skipping insertion in model container [2024-11-27 23:19:28,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:19:28" (1/1) ... [2024-11-27 23:19:28,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:19:28,628 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_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-27.i[916,929] [2024-11-27 23:19:28,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:19:28,910 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:19:28,934 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_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-27.i[916,929] [2024-11-27 23:19:29,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:19:29,140 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:19:29,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29 WrapperNode [2024-11-27 23:19:29,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:19:29,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:19:29,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:19:29,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:19:29,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,345 INFO L138 Inliner]: procedures = 26, calls = 122, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 804 [2024-11-27 23:19:29,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:19:29,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:19:29,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:19:29,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:19:29,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,496 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:19:29,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:19:29,601 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:19:29,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:19:29,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:19:29,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (1/1) ... [2024-11-27 23:19:29,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:19:29,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:29,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:19:29,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:19:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:19:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:19:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:19:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:19:29,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:19:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:19:29,940 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:19:29,943 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:19:32,127 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-27 23:19:32,128 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:19:32,165 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:19:32,168 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:19:32,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:32 BoogieIcfgContainer [2024-11-27 23:19:32,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:19:32,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:19:32,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:19:32,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:19:32,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:19:28" (1/3) ... [2024-11-27 23:19:32,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59df5c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:19:32, skipping insertion in model container [2024-11-27 23:19:32,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:29" (2/3) ... [2024-11-27 23:19:32,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59df5c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:19:32, skipping insertion in model container [2024-11-27 23:19:32,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:32" (3/3) ... [2024-11-27 23:19:32,194 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-27.i [2024-11-27 23:19:32,220 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:19:32,224 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-27.i that has 2 procedures, 345 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:19:32,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:19:32,352 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;@98f7b39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:19:32,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:19:32,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 345 states, 233 states have (on average 1.5836909871244635) internal successors, (369), 234 states have internal predecessors, (369), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-27 23:19:32,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-27 23:19:32,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:32,438 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:32,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:32,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:32,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1609941423, now seen corresponding path program 1 times [2024-11-27 23:19:32,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:32,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855149281] [2024-11-27 23:19:32,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:32,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2024-11-27 23:19:33,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855149281] [2024-11-27 23:19:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855149281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:33,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339559859] [2024-11-27 23:19:33,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:33,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:33,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:33,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:33,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:19:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:34,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:19:34,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2024-11-27 23:19:34,652 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:19:34,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339559859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:34,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:34,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:19:34,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320607346] [2024-11-27 23:19:34,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:34,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:19:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:34,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:19:34,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:19:34,701 INFO L87 Difference]: Start difference. First operand has 345 states, 233 states have (on average 1.5836909871244635) internal successors, (369), 234 states have internal predecessors, (369), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-27 23:19:34,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:34,822 INFO L93 Difference]: Finished difference Result 683 states and 1277 transitions. [2024-11-27 23:19:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:19:34,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) Word has length 695 [2024-11-27 23:19:34,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:34,837 INFO L225 Difference]: With dead ends: 683 [2024-11-27 23:19:34,837 INFO L226 Difference]: Without dead ends: 341 [2024-11-27 23:19:34,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 696 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:19:34,856 INFO L435 NwaCegarLoop]: 576 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, 576 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:34,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-27 23:19:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-27 23:19:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 230 states have (on average 1.5565217391304347) internal successors, (358), 230 states have internal predecessors, (358), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-27 23:19:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 576 transitions. [2024-11-27 23:19:35,016 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 576 transitions. Word has length 695 [2024-11-27 23:19:35,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:35,021 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 576 transitions. [2024-11-27 23:19:35,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-27 23:19:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 576 transitions. [2024-11-27 23:19:35,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-27 23:19:35,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:35,050 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:35,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:19:35,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe88de-93d0-4c7e-a1f7-65c3b3cf5ecc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:19:35,255 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:35,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:35,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1396572629, now seen corresponding path program 1 times [2024-11-27 23:19:35,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:35,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884999790] [2024-11-27 23:19:35,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:35,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:36,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:36,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884999790] [2024-11-27 23:19:36,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884999790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:36,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:36,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:36,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880568239] [2024-11-27 23:19:36,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:36,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:36,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:36,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:36,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:36,598 INFO L87 Difference]: Start difference. First operand 341 states and 576 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:36,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:36,758 INFO L93 Difference]: Finished difference Result 895 states and 1514 transitions. [2024-11-27 23:19:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:36,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 695 [2024-11-27 23:19:36,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:36,774 INFO L225 Difference]: With dead ends: 895 [2024-11-27 23:19:36,776 INFO L226 Difference]: Without dead ends: 557 [2024-11-27 23:19:36,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:36,780 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 359 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:36,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1139 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:36,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-27 23:19:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 554. [2024-11-27 23:19:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 399 states have (on average 1.5889724310776943) internal successors, (634), 400 states have internal predecessors, (634), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 151 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-27 23:19:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 938 transitions. [2024-11-27 23:19:36,925 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 938 transitions. Word has length 695 [2024-11-27 23:19:36,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:36,931 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 938 transitions. [2024-11-27 23:19:36,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 938 transitions. [2024-11-27 23:19:37,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-27 23:19:37,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:37,017 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:37,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:19:37,018 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:37,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:37,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1212214829, now seen corresponding path program 1 times [2024-11-27 23:19:37,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:37,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800371557] [2024-11-27 23:19:37,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:37,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:37,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:37,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800371557] [2024-11-27 23:19:37,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800371557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:37,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:37,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:37,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122467477] [2024-11-27 23:19:37,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:37,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:37,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:37,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:37,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:37,875 INFO L87 Difference]: Start difference. First operand 554 states and 938 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:38,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:38,103 INFO L93 Difference]: Finished difference Result 1655 states and 2806 transitions. [2024-11-27 23:19:38,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:38,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 695 [2024-11-27 23:19:38,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:38,130 INFO L225 Difference]: With dead ends: 1655 [2024-11-27 23:19:38,130 INFO L226 Difference]: Without dead ends: 1104 [2024-11-27 23:19:38,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:38,134 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 534 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:38,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1128 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:19:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2024-11-27 23:19:38,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1102. [2024-11-27 23:19:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 793 states have (on average 1.5876418663303908) internal successors, (1259), 795 states have internal predecessors, (1259), 304 states have call successors, (304), 4 states have call predecessors, (304), 4 states have return successors, (304), 302 states have call predecessors, (304), 304 states have call successors, (304) [2024-11-27 23:19:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1867 transitions. [2024-11-27 23:19:38,351 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1867 transitions. Word has length 695 [2024-11-27 23:19:38,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:38,357 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1867 transitions. [2024-11-27 23:19:38,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1867 transitions. [2024-11-27 23:19:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-27 23:19:38,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:38,401 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:38,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:19:38,404 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:38,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:38,406 INFO L85 PathProgramCache]: Analyzing trace with hash 381083549, now seen corresponding path program 1 times [2024-11-27 23:19:38,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:38,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59341086] [2024-11-27 23:19:38,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:38,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:38,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:38,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59341086] [2024-11-27 23:19:38,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59341086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:38,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:38,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:38,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599917384] [2024-11-27 23:19:38,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:38,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:38,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:38,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:38,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:38,953 INFO L87 Difference]: Start difference. First operand 1102 states and 1867 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:39,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:39,139 INFO L93 Difference]: Finished difference Result 2883 states and 4856 transitions. [2024-11-27 23:19:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:39,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 696 [2024-11-27 23:19:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:39,163 INFO L225 Difference]: With dead ends: 2883 [2024-11-27 23:19:39,163 INFO L226 Difference]: Without dead ends: 1784 [2024-11-27 23:19:39,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:39,171 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 298 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1390 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 [2024-11-27 23:19:39,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1390 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:39,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2024-11-27 23:19:39,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1780. [2024-11-27 23:19:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1780 states, 1265 states have (on average 1.5596837944664033) internal successors, (1973), 1271 states have internal predecessors, (1973), 506 states have call successors, (506), 8 states have call predecessors, (506), 8 states have return successors, (506), 500 states have call predecessors, (506), 506 states have call successors, (506) [2024-11-27 23:19:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 2985 transitions. [2024-11-27 23:19:39,491 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 2985 transitions. Word has length 696 [2024-11-27 23:19:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:39,494 INFO L471 AbstractCegarLoop]: Abstraction has 1780 states and 2985 transitions. [2024-11-27 23:19:39,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:39,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 2985 transitions. [2024-11-27 23:19:39,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-27 23:19:39,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:39,512 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:39,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:19:39,512 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:39,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:39,515 INFO L85 PathProgramCache]: Analyzing trace with hash -789794867, now seen corresponding path program 1 times [2024-11-27 23:19:39,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:39,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193765728] [2024-11-27 23:19:39,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:39,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:40,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:40,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193765728] [2024-11-27 23:19:40,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193765728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:40,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:40,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:40,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66681671] [2024-11-27 23:19:40,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:40,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:40,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:40,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:40,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:40,124 INFO L87 Difference]: Start difference. First operand 1780 states and 2985 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:40,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:40,430 INFO L93 Difference]: Finished difference Result 4951 states and 8302 transitions. [2024-11-27 23:19:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:40,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 696 [2024-11-27 23:19:40,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:40,463 INFO L225 Difference]: With dead ends: 4951 [2024-11-27 23:19:40,463 INFO L226 Difference]: Without dead ends: 3174 [2024-11-27 23:19:40,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:40,474 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 295 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:40,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1134 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2024-11-27 23:19:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 3168. [2024-11-27 23:19:40,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 2293 states have (on average 1.560837331007414) internal successors, (3579), 2307 states have internal predecessors, (3579), 858 states have call successors, (858), 16 states have call predecessors, (858), 16 states have return successors, (858), 844 states have call predecessors, (858), 858 states have call successors, (858) [2024-11-27 23:19:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 5295 transitions. [2024-11-27 23:19:40,930 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 5295 transitions. Word has length 696 [2024-11-27 23:19:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:40,932 INFO L471 AbstractCegarLoop]: Abstraction has 3168 states and 5295 transitions. [2024-11-27 23:19:40,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 5295 transitions. [2024-11-27 23:19:40,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-27 23:19:40,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:40,947 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:40,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:19:40,948 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:40,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1133433167, now seen corresponding path program 1 times [2024-11-27 23:19:40,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:40,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829893337] [2024-11-27 23:19:40,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:40,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:41,401 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:41,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:41,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829893337] [2024-11-27 23:19:41,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829893337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:41,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:41,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:41,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412894235] [2024-11-27 23:19:41,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:41,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:41,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:41,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:41,409 INFO L87 Difference]: Start difference. First operand 3168 states and 5295 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:41,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:41,967 INFO L93 Difference]: Finished difference Result 8903 states and 14788 transitions. [2024-11-27 23:19:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:41,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 696 [2024-11-27 23:19:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:42,012 INFO L225 Difference]: With dead ends: 8903 [2024-11-27 23:19:42,013 INFO L226 Difference]: Without dead ends: 5738 [2024-11-27 23:19:42,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:42,026 INFO L435 NwaCegarLoop]: 658 mSDtfsCounter, 368 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:42,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1221 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5738 states. [2024-11-27 23:19:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5738 to 5734. [2024-11-27 23:19:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5734 states, 4027 states have (on average 1.5160168860193692) internal successors, (6105), 4057 states have internal predecessors, (6105), 1674 states have call successors, (1674), 32 states have call predecessors, (1674), 32 states have return successors, (1674), 1644 states have call predecessors, (1674), 1674 states have call successors, (1674) [2024-11-27 23:19:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5734 states to 5734 states and 9453 transitions. [2024-11-27 23:19:42,900 INFO L78 Accepts]: Start accepts. Automaton has 5734 states and 9453 transitions. Word has length 696 [2024-11-27 23:19:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:42,902 INFO L471 AbstractCegarLoop]: Abstraction has 5734 states and 9453 transitions. [2024-11-27 23:19:42,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 5734 states and 9453 transitions. [2024-11-27 23:19:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-27 23:19:42,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:42,918 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:42,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:19:42,918 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:42,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:42,919 INFO L85 PathProgramCache]: Analyzing trace with hash 315784717, now seen corresponding path program 1 times [2024-11-27 23:19:42,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:42,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718717043] [2024-11-27 23:19:42,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:42,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:43,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:43,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718717043] [2024-11-27 23:19:43,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718717043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:43,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:43,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568065963] [2024-11-27 23:19:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:43,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:43,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:43,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:43,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:43,803 INFO L87 Difference]: Start difference. First operand 5734 states and 9453 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:44,428 INFO L93 Difference]: Finished difference Result 11473 states and 18919 transitions. [2024-11-27 23:19:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:44,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 696 [2024-11-27 23:19:44,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:44,492 INFO L225 Difference]: With dead ends: 11473 [2024-11-27 23:19:44,493 INFO L226 Difference]: Without dead ends: 5742 [2024-11-27 23:19:44,517 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 [2024-11-27 23:19:44,518 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 0 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:44,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1144 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2024-11-27 23:19:45,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5742. [2024-11-27 23:19:45,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 4035 states have (on average 1.514993804213135) internal successors, (6113), 4065 states have internal predecessors, (6113), 1674 states have call successors, (1674), 32 states have call predecessors, (1674), 32 states have return successors, (1674), 1644 states have call predecessors, (1674), 1674 states have call successors, (1674) [2024-11-27 23:19:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 9461 transitions. [2024-11-27 23:19:45,202 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 9461 transitions. Word has length 696 [2024-11-27 23:19:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:45,206 INFO L471 AbstractCegarLoop]: Abstraction has 5742 states and 9461 transitions. [2024-11-27 23:19:45,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:45,211 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 9461 transitions. [2024-11-27 23:19:45,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:19:45,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:45,230 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:45,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:19:45,231 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:45,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:45,232 INFO L85 PathProgramCache]: Analyzing trace with hash 457385781, now seen corresponding path program 1 times [2024-11-27 23:19:45,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:45,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889539650] [2024-11-27 23:19:45,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:45,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:45,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:45,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889539650] [2024-11-27 23:19:45,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889539650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:45,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:45,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:19:45,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741294009] [2024-11-27 23:19:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:45,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:19:45,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:45,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:19:45,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:19:45,945 INFO L87 Difference]: Start difference. First operand 5742 states and 9461 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:47,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:47,833 INFO L93 Difference]: Finished difference Result 19714 states and 32515 transitions. [2024-11-27 23:19:47,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:19:47,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 697 [2024-11-27 23:19:47,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:47,959 INFO L225 Difference]: With dead ends: 19714 [2024-11-27 23:19:47,960 INFO L226 Difference]: Without dead ends: 13975 [2024-11-27 23:19:47,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:47,992 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 1210 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:47,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1936 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:19:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13975 states. [2024-11-27 23:19:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13975 to 9942. [2024-11-27 23:19:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9942 states, 7563 states have (on average 1.55996297765437) internal successors, (11798), 7625 states have internal predecessors, (11798), 2314 states have call successors, (2314), 64 states have call predecessors, (2314), 64 states have return successors, (2314), 2252 states have call predecessors, (2314), 2314 states have call successors, (2314) [2024-11-27 23:19:49,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9942 states to 9942 states and 16426 transitions. [2024-11-27 23:19:49,413 INFO L78 Accepts]: Start accepts. Automaton has 9942 states and 16426 transitions. Word has length 697 [2024-11-27 23:19:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:49,415 INFO L471 AbstractCegarLoop]: Abstraction has 9942 states and 16426 transitions. [2024-11-27 23:19:49,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9942 states and 16426 transitions. [2024-11-27 23:19:49,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:19:49,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:49,446 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:49,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:19:49,449 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:49,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:49,451 INFO L85 PathProgramCache]: Analyzing trace with hash 23656695, now seen corresponding path program 1 times [2024-11-27 23:19:49,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:49,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46645388] [2024-11-27 23:19:49,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:49,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:50,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:50,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46645388] [2024-11-27 23:19:50,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46645388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:50,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:50,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:19:50,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128570178] [2024-11-27 23:19:50,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:50,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:19:50,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:50,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:19:50,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:19:50,574 INFO L87 Difference]: Start difference. First operand 9942 states and 16426 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:51,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:51,769 INFO L93 Difference]: Finished difference Result 29820 states and 49272 transitions. [2024-11-27 23:19:51,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:19:51,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 697 [2024-11-27 23:19:51,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:51,886 INFO L225 Difference]: With dead ends: 29820 [2024-11-27 23:19:51,887 INFO L226 Difference]: Without dead ends: 19881 [2024-11-27 23:19:51,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:51,932 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 320 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:51,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1703 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:19:51,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19881 states. [2024-11-27 23:19:53,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19881 to 19751. [2024-11-27 23:19:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19751 states, 14994 states have (on average 1.5478191276510604) internal successors, (23208), 15118 states have internal predecessors, (23208), 4628 states have call successors, (4628), 128 states have call predecessors, (4628), 128 states have return successors, (4628), 4504 states have call predecessors, (4628), 4628 states have call successors, (4628) [2024-11-27 23:19:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19751 states to 19751 states and 32464 transitions. [2024-11-27 23:19:54,135 INFO L78 Accepts]: Start accepts. Automaton has 19751 states and 32464 transitions. Word has length 697 [2024-11-27 23:19:54,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:54,136 INFO L471 AbstractCegarLoop]: Abstraction has 19751 states and 32464 transitions. [2024-11-27 23:19:54,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:54,137 INFO L276 IsEmpty]: Start isEmpty. Operand 19751 states and 32464 transitions. [2024-11-27 23:19:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-27 23:19:54,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:54,160 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:54,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:19:54,160 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:54,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:54,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1627672097, now seen corresponding path program 1 times [2024-11-27 23:19:54,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:54,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051374186] [2024-11-27 23:19:54,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:54,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:19:55,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:55,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051374186] [2024-11-27 23:19:55,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051374186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:55,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:55,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:19:55,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559416481] [2024-11-27 23:19:55,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:55,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:19:55,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:55,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:19:55,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:19:55,153 INFO L87 Difference]: Start difference. First operand 19751 states and 32464 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:19:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:57,561 INFO L93 Difference]: Finished difference Result 47873 states and 78409 transitions. [2024-11-27 23:19:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:19:57,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 698 [2024-11-27 23:19:57,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:57,763 INFO L225 Difference]: With dead ends: 47873 [2024-11-27 23:19:57,763 INFO L226 Difference]: Without dead ends: 28125 [2024-11-27 23:19:57,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:57,845 INFO L435 NwaCegarLoop]: 1007 mSDtfsCounter, 672 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:57,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 2258 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:19:57,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28125 states. [2024-11-27 23:20:00,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28125 to 28057. [2024-11-27 23:20:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28057 states, 21764 states have (on average 1.5527476566807572) internal successors, (33794), 21952 states have internal predecessors, (33794), 6036 states have call successors, (6036), 256 states have call predecessors, (6036), 256 states have return successors, (6036), 5848 states have call predecessors, (6036), 6036 states have call successors, (6036) [2024-11-27 23:20:00,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28057 states to 28057 states and 45866 transitions. [2024-11-27 23:20:00,321 INFO L78 Accepts]: Start accepts. Automaton has 28057 states and 45866 transitions. Word has length 698 [2024-11-27 23:20:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:00,323 INFO L471 AbstractCegarLoop]: Abstraction has 28057 states and 45866 transitions. [2024-11-27 23:20:00,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:20:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 28057 states and 45866 transitions. [2024-11-27 23:20:00,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-27 23:20:00,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:00,346 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:00,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:20:00,347 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:00,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash -862104387, now seen corresponding path program 1 times [2024-11-27 23:20:00,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:00,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536559781] [2024-11-27 23:20:00,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:20:00,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536559781] [2024-11-27 23:20:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536559781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:00,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:20:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138986525] [2024-11-27 23:20:00,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:00,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:20:00,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:00,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:20:00,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:20:00,960 INFO L87 Difference]: Start difference. First operand 28057 states and 45866 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-27 23:20:05,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:05,216 INFO L93 Difference]: Finished difference Result 78543 states and 128212 transitions. [2024-11-27 23:20:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:05,216 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), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 698 [2024-11-27 23:20:05,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:05,538 INFO L225 Difference]: With dead ends: 78543 [2024-11-27 23:20:05,539 INFO L226 Difference]: Without dead ends: 50489 [2024-11-27 23:20:05,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:20:05,636 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 1961 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:05,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 1390 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:20:05,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50489 states. [2024-11-27 23:20:09,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50489 to 50387. [2024-11-27 23:20:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50387 states, 39412 states have (on average 1.553587739774688) internal successors, (61230), 39758 states have internal predecessors, (61230), 10462 states have call successors, (10462), 512 states have call predecessors, (10462), 512 states have return successors, (10462), 10116 states have call predecessors, (10462), 10462 states have call successors, (10462) [2024-11-27 23:20:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50387 states to 50387 states and 82154 transitions. [2024-11-27 23:20:10,308 INFO L78 Accepts]: Start accepts. Automaton has 50387 states and 82154 transitions. Word has length 698 [2024-11-27 23:20:10,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:10,309 INFO L471 AbstractCegarLoop]: Abstraction has 50387 states and 82154 transitions. [2024-11-27 23:20:10,310 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), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-27 23:20:10,310 INFO L276 IsEmpty]: Start isEmpty. Operand 50387 states and 82154 transitions. [2024-11-27 23:20:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-27 23:20:10,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:10,358 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:10,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:20:10,358 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:10,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:10,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1041395875, now seen corresponding path program 1 times [2024-11-27 23:20:10,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:10,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270833770] [2024-11-27 23:20:10,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:10,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:20:11,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:11,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270833770] [2024-11-27 23:20:11,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270833770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:11,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:11,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:11,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028337824] [2024-11-27 23:20:11,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:11,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:11,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:11,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:11,048 INFO L87 Difference]: Start difference. First operand 50387 states and 82154 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, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:20:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:14,330 INFO L93 Difference]: Finished difference Result 100811 states and 164363 transitions. [2024-11-27 23:20:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:14,331 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, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 698 [2024-11-27 23:20:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:14,655 INFO L225 Difference]: With dead ends: 100811 [2024-11-27 23:20:14,655 INFO L226 Difference]: Without dead ends: 50427 [2024-11-27 23:20:14,809 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 [2024-11-27 23:20:14,810 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 329 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:14,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50427 states. [2024-11-27 23:20:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50427 to 50387. [2024-11-27 23:20:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50387 states, 39412 states have (on average 1.5532832639805136) internal successors, (61218), 39758 states have internal predecessors, (61218), 10462 states have call successors, (10462), 512 states have call predecessors, (10462), 512 states have return successors, (10462), 10116 states have call predecessors, (10462), 10462 states have call successors, (10462) [2024-11-27 23:20:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50387 states to 50387 states and 82142 transitions. [2024-11-27 23:20:19,443 INFO L78 Accepts]: Start accepts. Automaton has 50387 states and 82142 transitions. Word has length 698 [2024-11-27 23:20:19,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:19,444 INFO L471 AbstractCegarLoop]: Abstraction has 50387 states and 82142 transitions. [2024-11-27 23:20:19,444 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, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-27 23:20:19,444 INFO L276 IsEmpty]: Start isEmpty. Operand 50387 states and 82142 transitions. [2024-11-27 23:20:19,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-27 23:20:19,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:19,471 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:19,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:20:19,471 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:19,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:19,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1485552407, now seen corresponding path program 1 times [2024-11-27 23:20:19,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:19,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552817743] [2024-11-27 23:20:19,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:19,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-27 23:20:20,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:20,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552817743] [2024-11-27 23:20:20,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552817743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:20,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:20,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:20:20,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417304303] [2024-11-27 23:20:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:20,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:20,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:20,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:20,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:20,297 INFO L87 Difference]: Start difference. First operand 50387 states and 82142 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-27 23:20:25,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:25,930 INFO L93 Difference]: Finished difference Result 123453 states and 201058 transitions. [2024-11-27 23:20:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:20:25,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 699 [2024-11-27 23:20:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:26,443 INFO L225 Difference]: With dead ends: 123453 [2024-11-27 23:20:26,443 INFO L226 Difference]: Without dead ends: 73069 [2024-11-27 23:20:26,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:20:26,551 INFO L435 NwaCegarLoop]: 558 mSDtfsCounter, 3074 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3074 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:26,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3074 Valid, 2132 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:20:26,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73069 states.